MSP430FR2433 [TI]

具有 16KB FRAM、4KB SRAM、10 位 ADC、UART/SPI/I2C 和计时器的 16MHz MCU;
MSP430FR2433
型号: MSP430FR2433
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

具有 16KB FRAM、4KB SRAM、10 位 ADC、UART/SPI/I2C 和计时器的 16MHz MCU

静态存储器
文件: 总92页 (文件大小:2840K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
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MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
MSP430FR2433 混合信号微控制器  
1 器件概述  
1.1 特性  
1
对程序、常量和存储的统一存储  
耐写次数达 1015  
嵌入式微控制器  
– 16 RISC 架构  
抗辐射和非磁性  
支持的时钟频率最高可达 16MHz  
– FRAM SRAM 之比高达 41  
时钟系统 (CS)  
– 3.6V 1.8V 的宽电源电压范围(最低电源电压  
受限于 SVS 电平,请参阅 SVS 规格)  
优化的超低功耗模式  
片上 32kHz RC 振荡器 (REFO)  
激活模式:126µA/MHz(典型值)  
待机模式:VLO 的电流小于 1µA  
采用 32768Hz 晶振的 LPM3.5 实时时钟 (RTC)  
计数器:730nA(典型值)  
带有锁频环 (FLL) 的片上 16MHz 数控振荡器  
(DCO)  
室温下的精度为 ±1%(具有片上基准)  
片上超低频 10kHz 振荡器 (VLO)  
片上高频调制振荡器 (MODOSC)  
外部 32kHz 晶振 (LFXT)  
关断电流 (LPM4.5)16nA(典型值)  
高性能模拟  
– 8 通道 10 位模数转换器 (ADC)  
– 1.5V 的内部基准电压  
采样与保持 200ksps  
可编程 MCLK 预分频器(1 128)  
通过可编程预分频器(124 8)从 MCLK  
获得的 SMCLK  
通用输入/输出和引脚功能  
增强型串行通信  
共计 19 I/O(采用 VQFN-24 封装)  
– 16 个中断引脚(P1 P2)可以将 MCU 从低功  
耗模式下唤醒  
两个增强型通用串行通信接口 (eUSCI_A) 支持  
UARTIrDA SPI  
一个 eUSCI (eUSCI_B) 支持 SPI I2C  
智能数字外设  
开发工具和软件  
开发工具  
四个 16 位计时器  
– LaunchPad™开发套件  
(MSPEXP430FR2433)  
两个计时器,每个计时器具有三个捕捉/比较寄  
存器 (Timer_A3)  
目标开发板 (MSPTS430RGE24A)  
系列成员(另请参阅 器件比较)  
两个计时器,每个计时器具有两个捕捉/比较寄  
存器 (Timer_A2)  
一个仅用作计数器的 16 RTC  
– 16 位循环冗余校验 (CRC)  
低功耗铁电 RAM (FRAM)  
容量高达 15.5KB 的非易失性存储器  
内置错误修正码 (ECC)  
– MSP430FR243315KB 程序 FRAM512B 信  
FRAM4KB RAM  
封装选项  
– 24 引脚:VQFN (RGE)  
– 24 引脚:DSBGA (YQW)  
可配置的写保护  
1.2 应用  
小型工业传感器  
电子门锁  
能量收集  
低功耗医疗、健康和健身器材  
1.3 说明  
MSP430FR2433 微控制器 (MCU) MSP430™超值系列检测产品组合中的一个器件,该超值系列是 TI 成  
本最低的 MCU 系列,适用于检测和测量 应用。该架构、FRAM 和集成外设与多种低功耗模式相结合,经过  
优化延长了采用小型 VQFN 封装 (4mm × 4mm) 应用的 电池寿命。  
TI MSP430 超低功耗 FRAM 微控制器平台将独特的嵌入式 FRAM 和全面的超低功耗系统架构相结合,  
从而使系统设计人员能够在降低能耗的同时提升性能。FRAM 技术兼有 RAM 的低功耗快速写入、灵活性、  
耐用性和闪存非易失性等特性。  
1
本文档旨在为方便起见,提供有关 TI 产品中文版本的信息,以确认产品的概要。 有关适用的官方英文版本的最新信息,请访问 www.ti.com,其内容始终优先。 TI 不保证翻译的准确  
性和有效性。 在实际设计之前,请务必参考最新版本的英文版本。  
English Data Sheet: SLASE59  
 
 
 
 
 
 
 
 
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
MSP430FR2433 MCU 由一个由各种软、硬件资源组成的生态系统提供支持,并配套提供有参考设计和代码  
示例,可帮助您快速开展设计。开发套件包括 MSPEXP430FR2433 LaunchPad™开发套件和  
MSPTS430RGE24A 24 引脚目标开发板。TI 还提供免费的 MSP430Ware™ 软件,该软件以 Code  
Composer Studio™ IDE 台式机和云版本组件的形式提供(位于 TI Resource Explorer)。 E2E™ 支持论坛  
还为 MSP430 MCU 提供广泛的在线配套资料、培训和在线支持。  
有关完整的模块说明,请参阅MSP430FR4xx MSP430FR2xx 系列器件用户指南》。  
器件信息(1)  
封装  
器件型号  
MSP430FR2433IRGE  
MSP430FR2433IYQW  
封装尺寸(2)  
4mm x 4mm  
超薄四方扁平无引线 (VQFN) (24)  
DSBGA (24)  
2.29mm × 2.34mm  
(1) 要获得最新的产品、封装和订购信息,请参见封装选项附录9),或者访问德州仪器 (TI) 网站  
www.ti.com.cn。  
(2) 这里显示的尺寸为近似值。要获得包含误差值的封装尺寸,请参见机械数据9中)。  
CAUTION  
系统级静电放电 (ESD) 保护必须符合器件级 ESD 规范,以防发生电气过载或对  
数据或代码存储器造成干扰。有关更多信息,请参阅MSP430 系统级 ESD 注  
意事项》。  
2
器件概述  
版权 © 2015–2019, Texas Instruments Incorporated  
 
MSP430FR2433  
www.ti.com.cn  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
1.4 功能方框图  
1-1 给出了功能方框图。  
XIN  
XOUT  
P1.x/P2.x  
P3.x  
I/O Ports  
P1, P2  
2×8 IOs  
Interrupt  
and Wakeup  
PA  
I/O Ports  
P3  
1×3 IOs  
ADC  
FRAM  
RAM  
4KB  
MPY32  
DVCC  
DVSS  
LFXT  
Clock  
Power  
Management  
Module  
Up to 8-ch  
Single-end  
10-bit  
32-bit  
Hardware  
Multiplier  
15KB+512B  
RST/NMI  
System  
PB  
1×3 IOs  
200 ksps  
1×16 IOs  
MAB  
MDB  
16-MHz CPU,  
including  
16 Registers  
EEM  
RTC  
Counter  
2×eUSCI_A  
CRC16  
2×TA  
2×TA  
eUSCI_B0  
(SPI, I2C)  
BAKMEM  
SYS  
16-bit  
Cyclic  
Redundancy  
Check  
TCK  
TMS  
16-bit  
Real-Time  
Clock  
32-byte  
Backup  
Memory  
Timer_A3  
3 CC  
Registers  
Timer_A2  
2 CC  
Registers  
(UART,  
IrDA, SPI)  
JTAG  
SBW  
TDI/TCLK  
TDO  
Watchdog  
LPM3.5 Domain  
SBWTCK  
SBWTDIO  
1-1. 功能框图  
MCU 的主电源对 DVCC DVSS 分别为数字模块和模拟模块供电。推荐的旁路电容和去耦电容分别为  
4.7μF 10μF 0.1μF,精度为 ±5%。  
P1 P2 特有引脚中断功能,可将 MCU 从所有 LPM 唤醒(包括 LPM3.5 LPM4)。  
每个 Timer_A3 具有 3 个捕捉/比较寄存器,不过仅 CCR1 CCR2 从外部连接。CCR0 寄存器仅用于  
内部周期时序和生成中断。  
每个 Timer_A2 具有两个捕捉/比较寄存器,仅 CCR1 具有比较/捕捉功能。CCR0 寄存器仅用于内部周期  
时序和生成中断。  
LPM3.5 模式下,RTC 模块可在其他外设停止工作的情况下继续工作。  
版权 © 2015–2019, Texas Instruments Incorporated  
器件概述  
3
 
 
 
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
内容  
1
器件概.................................................... 1  
1.1 特性 ................................................... 1  
1.2 应用 ................................................... 1  
1.3 说明 ................................................... 1  
1.4 功能方框图............................................ 3  
修订历史记录............................................... 5  
Device Comparison ..................................... 7  
3.1 Related Products ..................................... 7  
Terminal Configuration and Functions.............. 8  
4.1 Pin Diagram .......................................... 8  
4.2 Pin Attributes ........................................ 10  
4.3 Signal Descriptions.................................. 12  
4.4 Pin Multiplexing ..................................... 15  
4.5 Buffer Types......................................... 15  
4.6 Connection of Unused Pins ......................... 15  
Specifications ........................................... 16  
5.1 Absolute Maximum Ratings......................... 16  
5.2 ESD Ratings ........................................ 16  
5.3 Recommended Operating Conditions............... 16  
6
Detailed Description ................................... 40  
6.1 Overview ............................................ 40  
6.2 CPU ................................................. 40  
6.3 Operating Modes.................................... 40  
6.4 Interrupt Vector Addresses.......................... 41  
6.5 Bootloader (BSL).................................... 43  
6.6 JTAG Standard Interface............................ 43  
6.7 Spy-Bi-Wire Interface (SBW)........................ 44  
6.8 FRAM................................................ 44  
6.9 Memory Protection .................................. 44  
6.10 Peripherals .......................................... 45  
6.11 Input/Output Diagrams .............................. 54  
6.12 Device Descriptors .................................. 60  
6.13 Memory.............................................. 61  
6.14 Identification ......................................... 69  
Applications, Implementation, and Layout........ 70  
2
3
4
5
7
8
7.1  
Device Connection and Layout Fundamentals...... 70  
7.2  
Peripheral- and Interface-Specific Design  
Information .......................................... 73  
器件和文档支持 .......................................... 75  
8.1 入门和后续步骤...................................... 75  
8.2 器件命名规则 ........................................ 75  
8.3 工具和软件 .......................................... 76  
8.4 文档支............................................. 78  
8.5 社区资............................................. 79  
8.6 商标.................................................. 79  
8.7 静电放电警告 ........................................ 79  
8.8 Export Control Notice ............................... 79  
8.9 Glossary ............................................. 79  
机械、封装和可订购信息................................ 80  
5.4  
Active Mode Supply Current Into VCC Excluding  
External Current..................................... 17  
5.5 Active Mode Supply Current Per MHz .............. 17  
5.6  
5.7  
5.8  
5.9  
Low-Power Mode LPM0 Supply Currents Into VCC  
Excluding External Current.......................... 17  
Low-Power Mode (LPM3 and LPM4) Supply  
Currents (Into VCC) Excluding External Current .... 18  
Low-Power Mode LPMx.5 Supply Currents (Into  
VCC) Excluding External Current.................... 18  
Typical Characteristics - Low-Power Mode Supply  
Currents ............................................. 19  
5.10 Thermal Resistance Characteristics ................ 20  
5.11 Timing and Switching Characteristics............... 21  
9
4
内容  
版权 © 2015–2019, Texas Instruments Incorporated  
MSP430FR2433  
www.ti.com.cn  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
2 修订历史记录  
注:之前版本的页码可能与当前版本有所不同。  
从修订版本 E 更改为修订版本 F  
Changes from August 20, 2019 to December 9, 2019  
Page  
Changed the note that begins "Supply voltage changes faster than 0.2 V/µs can trigger a BOR reset..." in  
Section 5.3, Recommended Operating Conditions ............................................................................. 16  
Added the note that begins "TI recommends that power to the DVCC pin must not exceed the limits..." in  
Section 5.3, Recommended Operating Conditions ............................................................................. 16  
Changed the note that begins "A capacitor tolerance of ±20% or better is required..." in Section 5.3,  
Recommended Operating Conditions ............................................................................................ 16  
Changed the note that begins "Requires external capacitors at both terminals..." in Table 5-4, XT1 Crystal  
Oscillator (Low Frequency) ........................................................................................................ 23  
Added the t(int) parameter in Table 5-10, Digital Inputs ........................................................................ 27  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
Corrected the test conditions for the RI,MUX parameter in Table 5-20, ADC, Power Supply and Input Range  
Conditions ............................................................................................................................ 35  
Added the note that begins "tSample = ln(2n+1) × τ ..." in Table 5-21, ADC, 10-Bit Timing Parameters.................... 35  
Changed the CRC covered end address to 0x1AF5 in note (1) in Table 6-22, Device Descriptors ..................... 60  
从修订版本 D 更改为修订版本 E  
Changes from September 11, 2018 to August 19, 2019  
Page  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
Changed the parameter symbol from RI to RI,MUX in Table 5-20 , ADC, Power Supply and Input Range Conditions . 35  
Added RI,Misc TYP value of 34 kΩ in Table 5-20 , ADC, Power Supply and Input Range Conditions ................... 35  
Added formula for RI calculation in Table 5-21 , ADC, 10-Bit Timing Parameters ......................................... 35  
Removed the description of "±3°C" in table note that starts "The device descriptor structure ..." of Table 5-22,  
ADC, 10-Bit Linearity Parameters................................................................................................. 36  
Corrected bitfield from IRDSEL to IRDSSEL in Section 6.10.8, Timers (Timer0_A3, Timer1_A3, Timer2_A2 and  
Timer3_A2), in the description that starts "The interconnection of Timer0_A3 and ..." .................................... 51  
Corrected the ADCINCHx column heading in Table 6-15, ADC Channel Connections ................................... 53  
Corrected the ADCSHSx column heading in Table 6-16, ADC Trigger Signal Connections.............................. 53  
Added P1SELC information in Table 6-32, Port P1, P2 Registers (Base Address: 0200h) .............................. 64  
Added P2SELC information in Table 6-32, Port P1, P2 Registers (Base Address: 0200h) .............................. 64  
Added P3SELC information in Table 6-33, Port P3 Registers (Base Address: 0220h) ................................... 64  
从修订版本 C 更改为修订版本 D  
Changes from August 29, 2018 to September 10, 2018  
Page  
Removed SYNC signal (not supported) from Figure 4-1, 32-Pin RHB Package (Top View) ............................... 8  
Combined two YQW pinout figures into one, and removed SYNC signal (not supported) in Figure 4-2, 24-Pin  
YQW Package (Top and Bottom Views)........................................................................................... 9  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
Removed SYNC signal (not supported) from figure and table in Section 6.11.2, Port P2 (P2.0 to P2.2)  
Input/Output With Schmitt Trigger ................................................................................................ 56  
从修订版本 B 更改为修订版本 C  
Changes from June 20, 2017 to August 28, 2018  
Page  
Updated Section 3.1, Related Products ........................................................................................... 7  
版权 © 2015–2019, Texas Instruments Incorporated  
修订历史记录  
5
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
Corrected description of pin C5 on YQW package (changed from DVSS to NC) in Table 4-1, Pin Attributes ......... 11  
Corrected typos in the pin numbers of P2.3,5,6 in the RGE package in Table 4-2 ....................................... 13  
Corrected typos in the pin numbers of UCA1RXD and UCA1TXD in the RGE package in Table 4-2 .................. 14  
Changed description of NC pins from "No internal connection" to "No connection" in Table 4-2, Signal Descriptions 14  
Corrected package type in VQFN row (changed from QFN to VQFN) in Table 4-2, Signal Descriptions .............. 14  
Changed HBM limit to ±1000 V and CDM limit to ±250 V in Section 5.2, ESD Ratings .................................. 16  
Added note to VSVSH- and VSVSH+ parameters in Table 5-2, PMM, SVS and BOR.......................................... 21  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
Moved "FRAM access time error" to "System Reset" row and added ACCTEIFG to interrupt flag column in  
Table 6-2, Interrupt Sources, Flags, and Vectors............................................................................... 41  
Corrected the offset for P2SEL1 in Table 6-32, Port P1, P2 Registers (Base Address: 0200h) ......................... 64  
更新了8.2器件命名规则 中的文本和图 ........................................................................................ 75  
从修订版本 A 更改为修订版本 B  
Changes from June 9, 2017 to June 19, 2017  
Page  
更正了1-1功能框图)中的 FRAM RAM 大小 ............................................................................ 3  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
从初始发行版更改为修订版本 A  
Changes from October 21, 2015 to June 8, 2017  
Page  
向开头为宽电源电压范围...”的列表项添加了说明 ................................................................................ 1  
1.1特性 中的封装选项列表中添加了 DSBGA (YQW) 封装............................................................ 1  
器件信息 表(位于1.3说明中)中添加了 DSBGA (YQW) 封装选项.................................................... 2  
Added row for MSP430FR2433IYQW to Table 3-1, Device Comparison ..................................................... 7  
Added Section 3.1, Related Products.............................................................................................. 7  
Added DSBGA (YQW) package to Table 4-1, Pin Attributes.................................................................. 10  
Added DSBGA (YQW) package to Table 4-2, Signal Descriptions........................................................... 12  
Added row for VQFN thermal pad ................................................................................................ 14  
Removed FRAM reflow note....................................................................................................... 16  
In the note that starts "Low-power mode 3, VLO, excludes SVS test conditions...", changed "fXT1 = 0 Hz" to  
"fXT1 = 32768 Hz" .................................................................................................................... 18  
Added DSBGA (YQW) package and changed notes for Section 5.10, Thermal Resistance Characteristics........... 20  
Added note that starts "The VLO clock frequency is reduced by 15%...".................................................... 26  
Added the tTA,cap parameter in Table 5-13, Timer_A............................................................................ 29  
Removed ADCDIV from the formula for the TYP value in the second row of the tCONVERT parameter in Table 5-  
21, ADC, 10-Bit Timing Parameters (removed because ADCCLK is after division)........................................ 35  
Added note to "Clock" in Table 6-1, Operating Modes......................................................................... 40  
Added note that starts "XT1CLK and VLOCLK can be active during LPM4..." ............................................. 41  
Add description of blank device detection ....................................................................................... 43  
Corrected description in Section 6.10.10, Backup Memory (BKMEM) ....................................................... 52  
Changed the paragraph that starts "Quickly switching digital signals and ..." in Section 7.2.1.2, Design  
Requirements ........................................................................................................................ 73  
更新了8-1器件命名规则 ...................................................................................................... 75  
将先前的开发工具支持 部分替换为8.3工具和软件......................................................................... 76  
更新了8.4文档支持的格式和内容............................................................................................. 78  
6
修订历史记录  
Copyright © 2015–2019, Texas Instruments Incorporated  
Submit Documentation Feedback  
Product Folder Links: MSP430FR2433  
MSP430FR2433  
www.ti.com.cn  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
3 Device Comparison  
Table 3-1 summarizes the features of the available family members.  
Table 3-1. Device Comparison(1)(2)  
PROGRAM FRAM  
+ INFORMATION  
FRAM (bytes)  
eUSCI_A  
UART  
SRAM  
(bytes)  
10-BIT ADC  
CHANNELS  
DEVICE  
TA0 TO TA3  
eUSCI_B  
GPIOs  
PACKAGE  
SPI  
2, 3 × CCR(3)  
2, 2 × CCR  
2, 3 × CCR(3)  
2, 2 × CCR  
24 RGE  
(VQFN)  
MSP430FR2433IRGE  
MSP430FR2433IYQW  
15360 + 512  
15360 + 512  
4096  
4096  
up to 2  
up to 2  
up to 2  
1
1
8
8
19  
17  
24 YQW  
(DSBGA)  
1
(1) For the most current package and ordering information, see the Package Option Addendum in 9, or see the TI website at  
www.ti.com.  
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/packaging.  
(3) A CCR register is a configurable register that provides internal and external capture or compare inputs, or internal and external PWM  
outputs.  
3.1 Related Products  
For information about other devices in this family of products or related products, see the following links.  
TI 16-bit and 32-bit microcontrollers  
High-performance, low-power solutions to enable the autonomous future  
Products for MSP430 ultra-low-power sensing & measurement MCUs  
One platform. One ecosystem. Endless possibilities.  
Companion products for MSP430FR2433  
Review products that are frequently purchased or used with this product.  
Reference designs for MSP430FR2433  
Find reference designs leveraging the best in TI technology – from analog and power management to  
embedded processors  
Copyright © 2015–2019, Texas Instruments Incorporated  
Device Comparison  
7
Submit Documentation Feedback  
Product Folder Links: MSP430FR2433  
 
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
4 Terminal Configuration and Functions  
4.1 Pin Diagram  
Figure 4-1 shows the pinout of the 24-pin RGE package.  
24 23 22 21 20 19  
RST/NMI/SBWTDIO  
TEST/SBWTCK  
1
2
3
4
5
6
18  
17  
16  
15  
14  
13  
DVSS  
P2.6/UCA1TXD/UCA1SIMO  
P2.5/UCA1RXD/UCA1SOMI  
P2.4/UCA1CLK  
P3.1/UCA1STE  
P2.3  
P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+  
P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5  
P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6  
P1.7/UCA0STE/SMCLK/TDO/A7  
MSP430FR2433IRGE  
7
8
9
10 11 12  
Figure 4-1. 24-Pin RGE Package (Top View)  
8
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Figure 4-2 shows the pinout of the 24-pin YQW package.  
Top View  
Ball-Side View  
E1  
D1  
E2  
D2  
C2  
B2  
A2  
E3  
D3  
C3  
B3  
A3  
E4  
D4  
C4  
B4  
A4  
E5  
D5  
C5  
B5  
A5  
E5  
D5  
C5  
B5  
A5  
E4  
D4  
C4  
B4  
A4  
E3  
E2  
D2  
C2  
B2  
A2  
E1  
D1  
D3  
C3  
B3  
A3  
E
D
D
B1  
A1  
B1  
A1  
E
PIN NO.  
A1  
SIGNAL NAME  
P1.1/UCB0CLK/TA0.1/A1  
PIN NO.  
C4  
SIGNAL NAME  
NC  
NC  
A2  
P1.3/UCB0SOMI/UCB0SCL/MCLK/A3  
P2.2/ACLK  
C5  
A3  
D1  
P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+  
A4  
P3.0  
D2  
TEST/SBWTCK  
DVSS  
A5  
P2.3  
D3  
B1  
P1.0/UCB0STE/TA0CLK/A0/Veref+  
P1.2/UCB0SIMO/UCB0SDA/TA0.2/A2/Veref-  
P1.7/UCA0STE/SMCLK/TDO/A7  
P2.5/UCA1RXD  
D4  
P3.2  
B2  
D5  
NC  
B3  
E1  
RST/NMI/SBWTDIO  
DVCC  
B4  
E2  
B5  
P2.6/UCA1TXD  
E3  
P2.1/XIN  
P2.0/XOUT  
P2.7  
C2  
P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5  
P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6  
E4  
C3  
E5  
Figure 4-2. 24-Pin YQW Package (Top and Bottom Views)  
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4.2 Pin Attributes  
Table 4-1 lists the attributes of all pins.  
Table 4-1. Pin Attributes  
PIN NUMBER  
RGE YQW  
SIGNAL  
TYPE(3)  
RESET STATE  
SIGNAL NAME(1) (2)  
BUFFER TYPE(4)  
POWER SOURCE(5)  
AFTER BOR(6)  
RST (RD)  
NMI  
I
I
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
OFF  
1
E1  
SBWTDIO  
TEST (RD)  
SBWTCK  
P1.4 (RD)  
UCA0TXD  
UCA0SIMO  
TA1.2  
I/O  
I
OFF  
2
3
D2  
D1  
I
I/O  
O
I/O  
I/O  
I
OFF  
TCK  
A4  
I
VREF+  
P1.5 (RD)  
UCA0RXD  
UCA0SOMI  
TA1.1  
O
I/O  
I
Power  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
I/O  
I/O  
I
4
5
C2  
C3  
TMS  
A5  
I
P1.6 (RD)  
UCA0CLK  
TA1CLK  
TDI  
I/O  
I/O  
I
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
I
TCLK  
I
A6  
I
P1.7 (RD)  
UCA0STE  
SMCLK  
TDO  
I/O  
I/O  
O
O
I
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
6
7
B3  
B1  
A7  
P1.0 (RD)  
UCB0STE  
TA0CLK  
A0  
I/O  
I/O  
I
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
I
Veref+  
I
Power  
(1) Signals names with (RD) denote the reset default pin name.  
(2) To determine the pin mux encodings for each pin, see Section 6.11, Input/Output Diagrams.  
(3) Signal Types: I = Input, O = Output, I/O = Input or Output  
(4) Buffer Types: LVCMOS, Analog, or Power (see Table 4-3)  
(5) The power source shown in this table is the I/O power source, which may differ from the module power source.  
(6) Reset States:  
OFF = High-impedance with Schmitt trigger and pullup or pulldown (if available) disabled  
N/A = Not applicable  
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Table 4-1. Pin Attributes (continued)  
PIN NUMBER  
SIGNAL  
TYPE(3)  
RESET STATE  
AFTER BOR(6)  
SIGNAL NAME(1) (2)  
BUFFER TYPE(4)  
POWER SOURCE(5)  
RGE  
YQW  
P1.1 (RD)  
UCB0CLK  
TA0.1  
I/O  
I/O  
I/O  
I
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
OFF  
8
A1  
A1  
P1.2 (RD)  
UCB0SIMO  
UCB0SDA  
TA0.2  
I/O  
I/O  
I/O  
I/O  
I
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
9
B2  
A2  
Veref-  
I
Power  
P1.3 (RD)  
UCB0SOMI  
UCB0SCL  
MCLK  
I/O  
I/O  
I/O  
O
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Analog  
OFF  
10  
11  
A2  
A3  
A3  
I
P2.2 (RD)  
ACLK  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Power  
OFF  
12  
13  
A4  
A5  
P3.0  
OFF  
OFF  
OFF  
P2.3  
P3.1 (RD)  
UCA1STE  
P2.4 (RD)  
UCA1CLK  
P2.5 (RD)  
UCA1RXD  
UCA1SOMI  
P2.6 (RD)  
UCA1TXD  
UCA1SIMO  
DVSS  
14  
15  
OFF  
OFF  
16  
17  
B4  
B5  
I/O  
I/O  
O
OFF  
I/O  
P
18  
N/A  
C5  
E5  
D4  
NC  
19  
20  
P2.7  
I/O  
I/O  
I/O  
O
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
LVCMOS  
Power  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
DVCC  
OFF  
OFF  
OFF  
P3.2  
P2.0 (RD)  
XOUT  
21  
22  
E4  
E3  
P2.1 (RD)  
XIN  
I/O  
I
OFF  
23  
24  
D3  
E2  
DVSS  
P
N/A  
N/A  
DVCC  
P
Power  
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4.3 Signal Descriptions  
Table 4-2 describes the device signals.  
Table 4-2. Signal Descriptions  
PIN NUMBER  
RGE YQW  
B1  
PIN  
FUNCTION  
SIGNAL NAME  
DESCRIPTION  
TYPE(1)  
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
7
I
I
Analog input A0  
Analog input A1  
Analog input A2  
Analog input A3  
Analog input A4  
Analog input A5  
Analog input A6  
Analog input A7  
ADC positive reference  
ADC negative reference  
ACLK output  
8
9
A1  
B2  
A2  
D1  
C2  
C3  
B3  
B1  
B2  
A3  
A2  
B3  
E3  
E4  
D2  
E1  
D1  
C3  
C3  
B3  
D2  
C2  
I
10  
3
I
I
ADC  
4
I
5
I
6
I
Veref+  
Veref-  
ACLK  
MCLK  
SMCLK  
XIN  
7
I
9
I
11  
10  
6
O
O
O
I
MCLK output  
Clock  
SMCLK output  
22  
21  
2
Input terminal for crystal oscillator  
Output terminal for crystal oscillator  
Spy-Bi-Wire input clock  
Spy-Bi-Wire data input/output  
Test clock  
XOUT  
SBWTCK  
SBWTDIO  
TCK  
O
I
1
I/O  
I
3
TCLK  
TDI  
5
I
Test clock input  
Debug  
5
I
Test data input  
TDO  
6
O
I
Test data output  
TEST  
TMS  
2
Test Mode pin – selected digital I/O on JTAG pins  
Test mode select  
4
I
(1) Pin Types: I = Input, O = Output, I/O = Input or Output, P = Power  
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FUNCTION  
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Table 4-2. Signal Descriptions (continued)  
PIN NUMBER  
RGE YQW  
B1  
PIN  
SIGNAL NAME  
P1.0  
DESCRIPTION  
TYPE(1)  
7
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
P
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O(2)  
General-purpose I/O(2)  
General-purpose I/O(2)  
General-purpose I/O(2)  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
General-purpose I/O  
eUSCI_B0 I2C clock  
eUSCI_B0 I2C data  
Power supply  
P1.1  
8
9
A1  
B2  
A2  
D1  
C2  
C3  
B3  
E4  
E3  
A3  
A5  
P1.2  
P1.3  
10  
3
P1.4  
P1.5  
4
P1.6  
5
P1.7  
6
P2.0  
21  
22  
11  
13  
15  
16  
17  
19  
12  
14  
20  
10  
9
GPIO  
P2.1  
P2.2  
P2.3  
P2.4  
P2.5  
B4  
B5  
E5  
A4  
P2.6  
P2.7  
P3.0  
P3.1  
P3.2  
D4  
A2  
B2  
E2  
D3  
D1  
C3  
D1  
C2  
B3  
UCB0SCL  
UCB0SDA  
DVCC  
I2C  
24  
23  
3
Power  
DVSS  
P
Power ground  
VREF+  
UCA0CLK  
UCA0SIMO  
UCA0SOMI  
UCA0STE  
UCA1CLK  
UCA1SIMO  
UCA1SOMI  
UCA1STE  
UCB0CLK  
UCB0SIMO  
UCB0SOMI  
UCB0STE  
NMI  
P
Output of positive reference voltage with ground as reference  
eUSCI_A0 SPI clock input/output  
eUSCI_A0 SPI slave in/master out  
eUSCI_A0 SPI slave out/master in  
eUSCI_A0 SPI slave transmit enable  
eUSCI_A1 SPI clock input/output  
eUSCI_A1 SPI slave in/master out  
eUSCI_A1 SPI slave out/master in  
eUSCI_A1 SPI slave transmit enable  
eUSCI_B0 clock input/output  
5
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I
3
4
6
15  
17  
16  
14  
8
B5  
B4  
SPI  
A1  
B2  
A2  
B1  
E1  
E1  
9
eUSCI_B0 SPI slave in/master out  
eUSCI_B0 SPI slave out/master in  
eUSCI_B0 slave transmit enable  
Nonmaskable interrupt input  
10  
7
1
System  
RST  
1
I
Active-low reset input  
(2) Because this pin is multiplexed with the JTAG function, TI recommends disabling the pin interrupt function while in JTAG debug to  
prevent collisions.  
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Table 4-2. Signal Descriptions (continued)  
PIN NUMBER  
RGE YQW  
PIN  
FUNCTION  
SIGNAL NAME  
TA0.1  
DESCRIPTION  
TYPE(1)  
Timer TA0 CCR1 capture: CCI1A input, compare: Out1  
outputs  
8
A1  
I/O  
Timer TA0 CCR2 capture: CCI2A input, compare: Out2  
outputs  
TA0.2  
9
7
4
B2  
B1  
C2  
I/O  
I
TA0CLK  
TA1.1  
Timer clock input TACLK for TA0  
Timer_A  
Timer TA1 CCR1 capture: CCI1A input, compare: Out1  
outputs  
I/O  
Timer TA1 CCR2 capture: CCI2A input, compare: Out2  
outputs  
TA1.2  
3
D1  
I/O  
TA1CLK  
5
4
C3  
C2  
D1  
B4  
B5  
I
I
Timer clock input TACLK for TA1  
eUSCI_A0 UART receive data  
eUSCI_A0 UART transmit data  
eUSCI_A1 UART receive data  
eUSCI_A1 UART transmit data  
UCA0RXD  
UCA0TXD  
UCA1RXD  
UCA1TXD  
3
O
I
UART  
16  
17  
O
No  
connection  
C4, C5,  
D5  
NC  
I/O  
No connection  
VQFN package exposed thermal pad. Connection to VSS is  
recommended  
VQFN Pad  
VQFN thermal pad  
Pad  
N/A  
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4.4 Pin Multiplexing  
Pin multiplexing for these MCUs is controlled by both register settings and operating modes (for example,  
if the MCU is in test mode). For details of the settings for each pin and schematics of the multiplexed  
ports, see Section 6.11.  
4.5 Buffer Types  
Table 4-3 defines the pin buffer types that are listed in Table 4-1.  
Table 4-3. Buffer Types  
NOMINAL  
OUTPUT  
DRIVE  
STRENGTH  
(mA)  
BUFFER TYPE  
(STANDARD)  
NOMINAL  
VOLTAGE  
PU OR PD  
STRENGTH  
(µA)  
OTHER  
CHARACTERISTICS  
HYSTERESIS  
PU OR PD  
See  
Section 5.11.4  
See  
Section 5.11.4  
LVCMOS  
Analog  
3.0 V  
3.0 V  
Y(1)  
N
Programmable  
N/A  
See analog modules in  
Section 5 for details.  
N/A  
N/A  
SVS enables hysteresis on  
DVCC.  
Power (DVCC)  
Power (AVCC)  
3.0 V  
3.0 V  
N
N
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
(1) Only for input pins.  
4.6 Connection of Unused Pins  
Table 4-4 lists the correct termination of unused pins.  
Table 4-4. Connection of Unused Pins(1)  
PIN  
POTENTIAL  
COMMENT  
Switched to port function, output direction (PxDIR.n = 1)  
47-kpullup or internal pullup selected with 10-nF (or 1.1-nF) pulldown(2)  
Px.0 to Px.7  
RST/NMI  
TEST  
Open  
DVCC  
Open  
This pin always has an internal pulldown enabled.  
(1) Any unused pin with a secondary function that is shared with general-purpose I/O should follow the Px.0 to Px.7 unused pin connection  
guidelines.  
(2) The pulldown capacitor should not exceed 1.1 nF when using MCUs with Spy-Bi-Wire interface in Spy-Bi-Wire mode with TI tools like  
FET interfaces or GANG programmers.  
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5 Specifications  
5.1 Absolute Maximum Ratings(1)  
over operating free-air temperature range (unless otherwise noted)  
MIN  
MAX  
UNIT  
Voltage applied at DVCC pin to VSS  
Voltage applied to any other pin(2)  
–0.3  
4.1  
V
VCC + 0.3  
(4.1 V Max)  
–0.3  
V
Diode current at any device pin  
±2  
85  
mA  
°C  
Maximum junction temperature, TJ  
(3)  
Storage temperature, Tstg  
–40  
125  
°C  
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating  
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
(2) All voltages referenced to VSS  
.
(3) Higher temperature may be applied during board soldering according to the current JEDEC J-STD-020 specification with peak reflow  
temperatures not higher than classified on the device label on the shipping boxes or reels.  
5.2 ESD Ratings  
VALUE  
±1000  
±250  
UNIT  
Human-body model (HBM), per ANSI/ESDA/JEDEC JS001(1)  
Charged-device model (CDM), per JEDEC specification JESD22C101(2)  
V(ESD)  
Electrostatic discharge  
V
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Pins listed as  
±1000 V may actually have higher performance.  
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Pins listed as ±250 V  
may actually have higher performance.  
5.3 Recommended Operating Conditions  
MIN  
NOM  
MAX UNIT  
VCC  
VSS  
TA  
Supply voltage applied at DVCC pin(1)(2)(3)(4)  
Supply voltage applied at DVSS pin  
Operating free-air temperature  
1.8  
3.6  
V
V
0
–40  
–40  
4.7  
85  
85  
°C  
°C  
µF  
TJ  
Operating junction temperature  
Recommended capacitor at DVCC(5)  
CDVCC  
10  
No FRAM wait states  
(NWAITSx = 0)  
0
0
8
fSYSTEM  
Processor frequency (maximum MCLK frequency)(6)  
MHz  
With FRAM wait states  
(NWAITSx = 1)(7)  
16(8)  
fACLK  
Maximum ACLK frequency  
Maximum SMCLK frequency  
40  
16(8)  
kHz  
fSMCLK  
MHz  
(1) Supply voltage changes faster than 0.2 V/µs can trigger a BOR reset even within the recommended supply voltage range. Following the  
data sheet recommendation for capacitor CDVCC limits the slopes accordingly.  
(2) Modules may have a different supply voltage range specification. See the specification of the respective module in this data sheet.  
(3) TI recommends that power to the DVCC pin must not exceed the limits specified in Recommended Operating Conditions. Exceeding the  
specified limits can cause malfunction of the device including erroneous writes to RAM and FRAM.  
(4) The minimum supply voltage is defined by the SVS levels. See the SVS threshold parameters in Table 5-2.  
(5) A capacitor tolerance of ±20% or better is required. A low-ESR ceramic capacitor of 100 nF (minimum) should be placed as close as  
possible (within a few millimeters) to the respective pin pair.  
(6) Modules may have a different maximum input clock specification. See the specification of the respective module in this data sheet.  
(7) Wait states only occur on actual FRAM accesses (that is, on FRAM cache misses). RAM and peripheral accesses are always executed  
without wait states.  
(8) If clock sources such as HF crystals or the DCO with frequencies >16 MHz are used, the clock must be divided in the clock system to  
comply with this operating condition.  
16  
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5.4 Active Mode Supply Current Into VCC Excluding External Current(1)  
VCC = 3 V, TA = 25°C (unless otherwise noted)  
FREQUENCY (fMCLK = fSMCLK  
)
1 MHz  
0 WAIT STATES  
(NWAITSx = 0)  
8 MHz  
0 WAIT STATES  
(NWAITSx = 0)  
16 MHz  
1 WAIT STATE  
(NWAITSx = 1)  
EXECUTION  
MEMORY  
TEST  
CONDITION  
PARAMETER  
UNIT  
TYP  
504  
516  
203  
MAX  
TYP  
2772  
2491  
625  
MAX  
TYP  
3047  
2871  
1000  
MAX  
3 V, 25°C  
3 V, 85°C  
3 V, 25°C  
3480  
FRAM  
0% cache hit ratio  
IAM, FRAM(0%)  
µA  
FRAM  
100% cache hit  
ratio  
1215  
IAM, FRAM(100%)  
µA  
µA  
3 V, 85°C  
3 V, 25°C  
212  
229  
639  
818  
1016  
1377  
(2)  
IAM, RAM  
RAM  
(1) All inputs are tied to 0 V or to VCC. Outputs do not source or sink any current. Characterized with program executing typical data  
processing.  
fACLK = 32768 Hz, fMCLK = fSMCLK = fDCO at specified frequency  
Program and data entirely reside in FRAM. All execution is from FRAM.  
(2) Program and data reside entirely in RAM. All execution is from RAM. No access to FRAM.  
5.5 Active Mode Supply Current Per MHz  
VCC = 3 V, TA = 25°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
TYP  
UNIT  
µA/MHz  
Active mode current consumption per MHz,  
execution from FRAM, no wait states  
[IAM (75% cache hit rate) at 8 MHz –  
IAM (75% cache hit rate) at 1 MHz)] / 7 MHz  
dIAM,FRAM/df  
126  
5.6 Low-Power Mode LPM0 Supply Currents Into VCC Excluding External Current  
VCC = 3 V, TA = 25°C (unless otherwise noted)(1)(2)  
FREQUENCY (fSMCLK  
8 MHz  
)
PARAMETER  
VCC  
1 MHz  
TYP  
16 MHz  
TYP MAX  
UNIT  
MAX  
TYP  
328  
342  
MAX  
2 V  
3 V  
156  
166  
420  
433  
ILPM0  
µA  
(1) All inputs are tied to 0 V or to VCC. Outputs do not source or sink any current.  
(2) Current for watchdog timer clocked by SMCLK included.  
fACLK = 32768 Hz, fMCLK = 0 MHz, fSMCLK at specified frequency.  
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5.7 Low-Power Mode (LPM3 and LPM4) Supply Currents (Into VCC) Excluding External Current  
(1)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
–40°C  
TYP MAX  
25°C  
TYP  
85°C  
TYP  
PARAMETER  
VCC  
UNIT  
MAX  
MAX  
3 V  
2 V  
3 V  
2 V  
0.98  
0.96  
0.78  
0.76  
1.18  
1.16  
0.98  
0.96  
1.65  
3.24  
3.21  
3.04  
3.01  
Low-power mode 3, 12.5-pF crystal, includes  
SVS(2)(3)(4)  
ILPM3,XT1  
µA  
1.40  
ILPM3,VLO  
ILPM3, RTC  
ILPM4, SVS  
Low-power mode 3, VLO, excludes SVS(5)  
µA  
µA  
µA  
Low-power mode 3, RTC, excludes SVS(6)  
(see Figure 5-1)  
3 V  
0.93  
1.13  
3.19  
3 V  
2 V  
3 V  
2 V  
0.51  
0.49  
0.35  
0.34  
0.65  
0.64  
0.49  
0.48  
2.65  
2.63  
2.49  
2.46  
Low-power mode 4, includes SVS  
Low-power mode 4, excludes SVS  
ILPM4  
µA  
(1) All inputs are tied to 0 V or to VCC. Outputs do not source or sink any current.  
(2) Not applicable for MCUs with HF crystal oscillator only.  
(3) Characterized with a Micro Crystal MS1V-T1K crystal with a load capacitance of 12.5 pF. The internal and external load capacitance are  
chosen to closely match the required 12.5-pF load.  
(4) Low-power mode 3, 12.5-pF crystal, includes SVS test conditions:  
Current for watchdog timer clocked by ACLK and RTC clocked by XT1 included. Current for brownout and SVS included (SVSHE = 1).  
CPUOFF = 1, SCG0 = 1 SCG1 = 1, OSCOFF = 0 (LPM3),  
fXT1 = 32768 Hz, fACLK = fXT1, fMCLK = fSMCLK = 0 MHz  
(5) Low-power mode 3, VLO, excludes SVS test conditions:  
Current for watchdog timer clocked by VLO included. RTC disabled. Current for brownout included. SVS disabled (SVSHE = 0).  
CPUOFF = 1, SCG0 = 1 SCG1 = 1, OSCOFF = 0 (LPM3)  
fXT1 = 32768 Hz, fACLK = fMCLK = fSMCLK = 0 MHz  
(6) RTC periodically wakes up every second with external 32768-Hz input as source.  
5.8 Low-Power Mode LPMx.5 Supply Currents (Into VCC) Excluding External Current  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
–40°C  
TYP MAX  
25°C  
TYP  
85°C  
TYP  
PARAMETER  
VCC  
UNIT  
µA  
MAX  
MAX  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
0.65  
0.63  
0.73  
0.71  
0.24  
0.23  
0.95  
0.99  
0.87  
0.30  
0.28  
1.42  
Low-power mode 3.5, 12.5-pF crystal, includes  
SVS(1)(2)(3) (see Figure 5-2)  
ILPM3.5, XT1  
ILPM4.5, SVS  
ILPM4.5  
Low-power mode 4.5, includes SVS(4) (see Figure 5-  
3)  
0.22  
0.31  
0.38  
µA  
0.21  
0.012  
0.002  
0.016 0.055 0.061 0.120  
0.007 0.044  
Low-power mode 4.5, excludes SVS(5)  
µA  
(1) Not applicable for MCUs with HF crystal oscillator only.  
(2) Characterized with a Micro Crystal MS1V-T1K crystal with a load capacitance of 12.5 pF. The internal and external load capacitance are  
chosen to closely match the required 12.5-pF load.  
(3) Low-power mode 3.5, 12.5-pF crystal, includes SVS test conditions:  
Current for RTC clocked by XT1 included. Current for brownout and SVS included (SVSHE = 1). Core regulator disabled.  
PMMREGOFF = 1, CPUOFF = 1, SCG0 = 1 SCG1 = 1, OSCOFF = 1 (LPMx.5),  
fXT1 = 32768 Hz, fACLK = 0, fMCLK = fSMCLK = 0 MHz  
(4) Low-power mode 4.5, includes SVS test conditions:  
Current for brownout and SVS included (SVSHE = 1). Core regulator disabled.  
PMMREGOFF = 1, CPUOFF = 1, SCG0 = 1 SCG1 = 1, OSCOFF = 1 (LPMx.5),  
fXT1 = 0 Hz, fACLK = fMCLK = fSMCLK = 0 MHz  
(5) Low-power mode 4.5, excludes SVS test conditions:  
Current for brownout included. SVS disabled (SVSHE = 0). Core regulator disabled.  
PMMREGOFF = 1, CPUOFF = 1, SCG0 = 1 SCG1 = 1, OSCOFF = 1 (LPMx.5),  
fXT1 = 0 Hz, fACLK = fMCLK = fSMCLK = 0 MHz  
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5.9 Typical Characteristics - Low-Power Mode Supply Currents  
10  
9
8
7
6
5
4
3
2
1
0
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
-40 -30 -20 -10  
0
10 20 30 40 50 60 70 80  
Temperature (°C)  
-40 -30 -20 -10  
0
10 20 30 40 50 60 70 80  
Temperature (°C)  
VCC = 3 V  
RTC  
SVS Disabled  
VCC = 3 V  
XT1  
SVS Enabled  
Figure 5-1. LPM3 Supply Current vs Temperature  
Figure 5-2. LPM3.5 Supply Current vs Temperature  
0.50  
0.45  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
-40 -30 -20 -10  
0
10 20 30 40 50 60 70 80  
Temperature (°C)  
VCC = 3 V  
SVS Enabled  
Figure 5-3. LPM4.5 Supply Current vs Temperature  
Table 5-1. Typical Characteristics – Current Consumption Per Module  
MODULE  
TEST CONDITIONS  
REFERENCE CLOCK  
Module input clock  
MIN  
TYP  
5
MAX  
UNIT  
µA/MHz  
µA/MHz  
µA/MHz  
µA/MHz  
µA/MHz  
nA  
Timer_A  
eUSCI_A  
eUSCI_A  
eUSCI_B  
eUSCI_B  
RTC  
UART mode  
Module input clock  
Module input clock  
Module input clock  
Module input clock  
32 kHz  
7
SPI mode  
5
SPI mode  
5
I2C mode, 100 kbaud  
5
85  
8.5  
CRC  
From start to end of operation  
MCLK  
µA/MHz  
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5.10 Thermal Resistance Characteristics  
THERMAL METRIC(1)  
VALUE(2)  
32.6  
63.7  
32.4  
0.3  
UNIT  
VQFN 24 pin (RGE)  
DSBGA 24 pin (YQW)  
VQFN 24 pin (RGE)  
DSBGA 24 pin (YQW)  
VQFN 24 pin (RGE)  
DSBGA 24 pin (YQW)  
RθJA  
RθJC  
RθJB  
Junction-to-ambient thermal resistance, still air  
Junction-to-case (top) thermal resistance  
Junction-to-board thermal resistance  
ºC/W  
ºC/W  
ºC/W  
10.1  
9.2  
(1) For more information about traditional and new thermal metrics, see Semiconductor and IC Package Thermal Metrics.  
(2) These values are based on a JEDEC-defined 2S2P system (with the exception of the Theta JC (RθJC) value, which is based on a  
JEDEC-defined 1S0P system) and will change based on environment and application. For more information, see these EIA/JEDEC  
standards:  
JESD51-2, Integrated Circuits Thermal Test Method Environmental Conditions - Natural Convection (Still Air)  
JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages  
JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages  
JESD51-9, Test Boards for Area Array Surface Mount Package Thermal Measurements  
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5.11 Timing and Switching Characteristics  
5.11.1 Power Supply Sequencing  
Table 5-2 lists the characteristics of the SVS and BOR.  
Table 5-2. PMM, SVS and BOR  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-4)  
PARAMETER  
TEST CONDITIONS  
MIN  
0.1  
10  
TYP  
MAX UNIT  
VBOR, safe  
tBOR, safe  
ISVSH,AM  
Safe BOR power-down level(1)  
Safe BOR reset delay(2)  
V
ms  
SVSH current consumption, active mode  
SVSH current consumption, low-power modes  
SVSH power-down level(3)  
VCC = 3.6 V  
VCC = 3.6 V  
1.5  
µA  
nA  
V
ISVSH,LPM  
VSVSH-  
240  
1.80  
1.89  
80  
1.71  
1.74  
1.86  
1.99  
VSVSH+  
SVSH power-up level(3)  
V
VSVSH_hys  
tPD,SVSH, AM  
tPD,SVSH, LPM  
VREF, 1.2V  
SVSH hysteresis  
mV  
µs  
µs  
V
SVSH propagation delay, active mode  
SVSH propagation delay, low-power modes  
1.2-V REF voltage(4)  
10  
100  
1.158  
1.20  
1.242  
(1) A safe BOR can be correctly generated only if DVCC drops below this voltage before it rises.  
(2) When an BOR occurs, a safe BOR can be correctly generated only if DVCC is kept low longer than this period before it reaches VSVSH+  
(3) For additional information, see the Dynamic Voltage Scaling Power Solution for MSP430 Devices With Single-Channel LDO Reference  
Design.  
.
(4) This is a characterized result with external 1-mA load to ground from –40°C to 85°C.  
V
Power Cycle Reset  
VSVS+  
SVS Reset  
BOR Reset  
VSVS–  
VBOR  
tBOR  
t
Figure 5-4. Power Cycle, SVS, and BOR Reset Conditions  
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5.11.2 Reset Timing  
Table 5-3 lists the wake-up times.  
Table 5-3. Wake-up Times From Low-Power Modes and Reset  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
TEST  
CONDITIONS  
PARAMETER  
VCC  
3 V  
3 V  
MIN  
TYP  
MAX UNIT  
Additional wake-up time to activate the FRAM in  
AM if previously disabled by the FRAM controller or  
from a LPM if immediate activation is selected for  
wakeup(1)  
tWAKE-UP FRAM  
10  
µs  
200 +  
ns  
(1)  
tWAKE-UP LPM0  
Wake-up time from LPM0 to active mode  
2.5 / fDCO  
(2)  
tWAKE-UP LPM3  
tWAKE-UP LPM4  
tWAKE-UP LPM3.5  
Wake-up time from LPM3 to active mode  
3 V  
3 V  
3 V  
10  
10  
µs  
µs  
µs  
µs  
ms  
Wake-up time from LPM4 to active mode  
(2)  
Wake-up time from LPM3.5 to active mode  
350  
350  
1
SVSHE = 1  
SVSHE = 0  
(2)  
tWAKE-UP LPM4.5  
Wake-up time from LPM4.5 to active mode  
3 V  
Wake-up time from RST or BOR event to active  
mode  
tWAKE-UP-RESET  
tRESET  
3 V  
3 V  
1
ms  
µs  
(2)  
Pulse duration required at RST/NMI pin to accept a  
reset  
2
(1) The wake-up time is measured from the edge of an external wake-up signal (for example, port interrupt or wake-up event) to the first  
externally observable MCLK clock edge.  
(2) The wake-up time is measured from the edge of an external wake-up signal (for example, port interrupt or wake-up event) until the first  
instruction of the user program is executed.  
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5.11.3 Clock Specifications  
Table 5-4 lists the characteristics of XT1.  
Table 5-4. XT1 Crystal Oscillator (Low Frequency)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
XT1 oscillator crystal, low  
frequency  
fXT1, LF  
LFXTBYPASS = 0  
32768  
Hz  
Measured at MCLK,  
fLFXT = 32768 Hz  
DCXT1, LF  
fXT1,SW  
XT1 oscillator LF duty cycle  
30%  
70%  
kHz  
60%  
kΩ  
XT1 oscillator logic-level square-  
wave input frequency  
(2)(3)  
LFXTBYPASS = 1  
LFXTBYPASS = 1  
32.768  
LFXT oscillator logic-level square-  
wave input duty cycle  
DCXT1, SW  
OALFXT  
CL,eff  
40%  
Oscillation allowance for  
LFXTBYPASS = 0, LFXTDRIVE = {3},  
fLFXT = 32768 Hz, CL,eff = 12.5 pF  
200  
1
(4)  
LF crystals  
Integrated effective load  
capacitance(5)  
(6)  
See  
pF  
fOSC = 32768 Hz,  
LFXTBYPASS = 0, LFXTDRIVE = {3},  
TA = 25°C, CL,eff = 12.5 pF  
(7)  
tSTART,LFXT Start-up time  
fFault,LFXT  
1000  
ms  
(8)  
Oscillator fault frequency  
XTS = 0(9)  
0
3500  
Hz  
(1) To improve EMI on the LFXT oscillator, observe the following guidelines:  
Keep the trace between the device and the crystal as short as possible.  
Design a good ground plane around the oscillator pins.  
Prevent crosstalk from other clock or data lines into oscillator pins XIN and XOUT.  
Avoid running PCB traces underneath or adjacent to the XIN and XOUT pins.  
Use assembly materials and processes that avoid any parasitic load on the oscillator XIN and XOUT pins.  
If conformal coating is used, make sure that it does not induce capacitive or resistive leakage between the oscillator pins.  
(2) When LFXTBYPASS is set, LFXT circuits are automatically powered down. Input signal is a digital square wave with parametrics  
defined in the Schmitt-trigger inputs section of this data sheet. Duty cycle requirements are defined by DCLFXT, SW  
.
(3) Maximum frequency of operation of the entire device cannot be exceeded.  
(4) Oscillation allowance is based on a safety factor of 5 for recommended crystals. The oscillation allowance is a function of the  
LFXTDRIVE settings and the effective load. In general, comparable oscillator allowance can be achieved based on the following  
guidelines, but should be evaluated based on the actual crystal selected for the application:  
For LFXTDRIVE = {0}, CL,eff = 3.7 pF  
For LFXTDRIVE = {1}, 6 pF CL,eff 9 pF  
For LFXTDRIVE = {2}, 6 pF CL,eff 10 pF  
For LFXTDRIVE = {3}, 6 pF CL,eff 12 pF  
(5) Includes parasitic bond and package capacitance (approximately 2 pF per pin).  
(6) Requires external capacitors at both terminals to meet the effective load capacitance specified by crystal manufacturers. Recommended  
effective load capacitance values supported are 3.7 pF, 6 pF, 9 pF, and 12.5 pF. Maximum shunt capacitance of 1.6 pF. The PCB adds  
additional capacitance, so it must also be considered in the overall capacitance. Verify that the recommended effective load capacitance  
of the selected crystal is met.  
(7) Includes start-up counter of 1024 clock cycles.  
(8) Frequencies above the MAX specification do not set the fault flag. Frequencies between the MIN and MAX specifications might set the  
flag. A static condition or stuck at fault condition sets the flag.  
(9) Measured with logic-level input frequency but also applies to operation with crystals.  
Table 5-5 lists the characteristics of the FLL.  
Table 5-5. DCO FLL, Frequency  
over recommended operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
3 V  
3 V  
MIN  
–1.0%  
–2.0%  
TYP  
MAX UNIT  
1.0%  
FLL lock frequency, 16 MHz, 25°C  
FLL lock frequency, 16 MHz, –40°C to 85°C  
Measured at MCLK, Internal  
trimmed REFO as reference  
2.0%  
fDCO, FLL  
Measured at MCLK, XT1  
crystal as reference  
FLL lock frequency, 16 MHz, –40°C to 85°C  
3 V  
–0.5%  
0.5%  
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Table 5-5. DCO FLL, Frequency (continued)  
over recommended operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
3 V  
3 V  
3 V  
3 V  
3 V  
MIN  
TYP  
50%  
MAX UNIT  
fDUTY  
Duty cycle  
40%  
60%  
Jittercc  
Jitterlong  
tFLL, lock  
tstart-up  
Cycle-to-cycle jitter, 16 MHz  
Long term jitter, 16 MHz  
FLL lock time  
0.25%  
0.022%  
280  
Measured at MCLK, XT1  
crystal as reference  
ms  
µs  
DCO start-up time, 2 MHz  
Measured at MCLK  
16  
Table 5-6 lists the characteristics of the DCO.  
Table 5-6. DCO Frequency  
over recommended operating free-air temperature (unless otherwise noted) (also see Figure 5-5)  
PARAMETER  
TEST CONDITIONS  
VCC  
TYP  
UNIT  
DCORSEL = 101b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
7.46  
12.26  
17.93  
29.1  
5.75  
9.5  
DCORSEL = 101b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
fDCO, 16MHz DCO frequency, 16 MHz  
3 V  
MHz  
DCORSEL = 101b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
DCORSEL = 101b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
DCORSEL = 100b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
DCORSEL = 100b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
fDCO, 12MHz DCO frequency, 12 MHz  
3 V  
3 V  
3 V  
3 V  
MHz  
MHz  
MHz  
MHz  
DCORSEL = 100b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
13.85  
22.5  
3.91  
6.49  
9.5  
DCORSEL = 100b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
DCORSEL = 011b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
DCORSEL = 011b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
fDCO, 8MHz  
fDCO, 4MHz  
fDCO, 2MHz  
DCO frequency, 8 MHz  
DCO frequency, 4 MHz  
DCO frequency, 2 MHz  
DCORSEL = 011b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
DCORSEL = 011b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
15.6  
2.026  
3.407  
4.95  
8.26  
DCORSEL = 010b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
DCORSEL = 010b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
DCORSEL = 010b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
DCORSEL = 010b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
DCORSEL = 001b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
1.0225  
1.729  
2.525  
4.25  
DCORSEL = 001b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
DCORSEL = 001b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
DCORSEL = 001b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
24  
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Table 5-6. DCO Frequency (continued)  
over recommended operating free-air temperature (unless otherwise noted) (also see Figure 5-5)  
PARAMETER  
TEST CONDITIONS  
VCC  
TYP  
UNIT  
DCORSEL = 000b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 0  
0.5319  
DCORSEL = 000b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 000b, DCO = 511  
0.9029  
1.307  
2.21  
fDCO, 1MHz  
DCO frequency, 1 MHz  
3 V  
MHz  
DCORSEL = 000b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 0  
DCORSEL = 000b, DISMOD = 1b, DCOFTRIMEN = 1b,  
DCOFTRIM = 111b, DCO = 511  
30  
25  
20  
15  
10  
5
DCOFTRIM = 7  
DCOFTRIM = 7  
DCOFTRIM = 7  
DCOFTRIM = 7  
DCOFTRIM = 7  
DCOFTRIM = 0  
DCOFTRIM = 0  
DCOFTRIM = 7  
DCOFTRIM = 0  
DCOFTRIM = 0  
DCOFTRIM = 0  
0
DCOFTRIM = 0  
DCO  
0
511  
0
511  
0
511  
0
511  
0
511  
0
511  
DCORSEL  
0
1
2
3
4
5
VCC = 3 V  
Figure 5-5. Typical DCO Frequency  
Table 5-7 lists the characteristics of the REFO.  
TA = –40°C to 85°C  
Table 5-7. REFO  
over recommended operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
TA = 25°C  
VCC  
3 V  
3 V  
MIN  
TYP  
15  
MAX UNIT  
IREFO  
REFO oscillator current consumption  
REFO calibrated frequency  
µA  
Hz  
Measured at MCLK  
–40°C to 85°C  
Measured at MCLK(1)  
32768  
fREFO  
REFO absolute calibrated tolerance  
REFO frequency temperature drift  
1.8 V to 3.6 V  
3 V  
–3.5%  
+3.5%  
%/°C  
dfREFO/dT  
0.01  
1
dfREFO  
/
REFO frequency supply voltage drift  
Measured at MCLK at 25°C(2)  
1.8 V to 3.6 V  
1.8 V to 3.6 V  
%/V  
dVCC  
fDC  
REFO duty cycle  
Measured at MCLK  
40%  
50%  
50  
60%  
µs  
tSTART  
REFO start-up time  
40% to 60% duty cycle  
(1) Calculated using the box method: (MAX(–40°C to 85°C) – MIN(–40°C to 85°C)) / MIN(–40°C to 85°C) / (85°C – (–40°C))  
(2) Calculated using the box method: (MAX(1.8 V to 3.6 V) – MIN(1.8 V to 3.6 V)) / MIN(1.8 V to 3.6 V) / (3.6 V – 1.8 V)  
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Table 5-8 lists the characteristics of the VLO.  
NOTE  
The VLO clock frequency is reduced by 15% (typical) when the device switches from active  
mode to LPM3 or LPM4, because the reference changes. This lower frequency is not a  
violation of the VLO specifications (see Table 5-8).  
Table 5-8. Internal Very-Low-Power Low-Frequency Oscillator (VLO)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
VLO frequency  
VLO frequency temperature drift  
TEST CONDITIONS  
VCC  
3 V  
TYP  
10  
UNIT  
kHz  
fVLO  
Measured at MCLK  
dfVLO/dT  
Measured at MCLK(1)  
Measured at MCLK(2)  
Measured at MCLK  
3 V  
0.5  
4
%/°C  
%/V  
dfVLO/dVCC VLO frequency supply voltage drift  
fVLO,DC Duty cycle  
2 V to 3.6 V  
3 V  
50%  
(1) Calculated using the box method: (MAX(–40°C to 85°C) – MIN(–40°C to 85°C)) / MIN(–40°C to 85°C) / (85°C – (–40°C))  
(2) Calculated using the box method: (MAX(1.8 V to 3.6 V) – MIN(1.8 V to 3.6 V)) / MIN(1.8 V to 3.6 V) / (3.6 V – 1.8 V)  
Table 5-9 lists the characteristics of the MODOSC.  
Table 5-9. Module Oscillator (MODOSC)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
MODOSC frequency  
MODOSC frequency temperature drift  
VCC  
3 V  
MIN  
TYP  
4.8  
MAX UNIT  
fMODOSC  
3.8  
5.8  
MHz  
%/℃  
%/V  
fMODOSC/dT  
3 V  
0.102  
1.02  
50%  
fMODOSC/dVCC MODOSC frequency supply voltage drift  
fMODOSC,DC Duty cycle  
1.8 V to 3.6 V  
3 V  
40%  
60%  
26  
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5.11.4 Digital I/Os  
Table 5-10 lists the characteristics of the digital inputs.  
Table 5-10. Digital Inputs  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
MIN  
0.90  
1.35  
0.50  
0.75  
0.3  
TYP  
MAX UNIT  
1.50  
V
VIT+  
VIT–  
Vhys  
Positive-going input threshold voltage  
2.25  
1.10  
V
Negative-going input threshold voltage  
1.65  
0.8  
V
Input voltage hysteresis (VIT+ – VIT–  
Pullup or pulldown resistor  
)
0.4  
1.2  
For pullup: VIN = VSS  
For pulldown: VIN = VCC  
RPull  
20  
35  
3
50  
20  
kΩ  
pF  
pF  
nA  
CI,dig  
Input capacitance, digital only port pins  
VIN = VSS or VCC  
Input capacitance, port pins with shared analog  
functions  
CI,ana  
Ilkg(Px.y)  
VIN = VSS or VCC  
5
(1) (2)  
High-impedance leakage current  
See  
2 V, 3 V  
2 V, 3 V  
–20  
50  
Ports with interrupt capability  
(see block diagram and  
terminal function descriptions)  
External interrupt timing (external trigger pulse  
duration to set interrupt flag)(3)  
t(int)  
ns  
(1) The leakage current is measured with VSS or VCC applied to the corresponding pins, unless otherwise noted.  
(2) The leakage of the digital port pins is measured individually. The port pin is selected for input and the pullup or pulldown resistor is  
disabled.  
(3) An external signal sets the interrupt flag every time the minimum interrupt pulse duration t(int) is met. It may be set by trigger signals  
shorter than t(int)  
.
Table 5-11 lists the characteristics of the digital outputs.  
Table 5-11. Digital Outputs  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (also see Figure 5-  
6, Figure 5-7, Figure 5-8, and Figure 5-9)  
PARAMETER  
TEST CONDITIONS  
I(OHmax) = –3 mA(1)  
I(OHmax) = –5 mA(1)  
I(OLmax) = 3 mA(1)  
VCC  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
MIN  
1.4  
2.4  
0.0  
0.0  
16  
TYP  
MAX UNIT  
2.0  
V
VOH  
High-level output voltage  
3.0  
0.60  
V
VOL  
Low-level output voltage  
I(OHmax) = 5 mA(1)  
0.60  
fPort_CLK  
trise,dig  
tfall,dig  
Clock output frequency  
CL = 20 pF(2)  
CL = 20 pF  
CL = 20 pF  
MHz  
ns  
16  
10  
7
Port output rise time, digital only port pins  
Port output fall time, digital only port pins  
10  
5
ns  
(1) The maximum total current, I(OHmax) and I(OLmax), for all outputs combined should not exceed ±48 mA to hold the maximum voltage drop  
specified.  
(2) The port can output frequencies at least up to the specified limit and might support higher frequencies.  
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5.11.4.1 Typical Characteristics – Outputs at 3 V and 2 V  
25  
20  
15  
10  
5
10  
7.5  
5
85°C  
25°C  
–40°C  
85°C  
25°C  
–40°C  
2.5  
0
0
–5  
0
0.5  
1
1.5  
2
2.5  
3
0
0.25  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
Low-Level Output Voltage (V)  
Low-Level Output Voltage (V)  
DVCC = 3 V  
DVCC = 2 V  
Figure 5-6. Typical Low-Level Output Current vs Low-Level  
Output Voltage  
Figure 5-7. Typical Low-Level Output Current vs Low-Level  
Output Voltage  
5
0
85°C  
85°C  
0
25°C  
25°C  
–2.5  
–40°C  
–5  
–10  
–15  
–20  
–25  
–30  
–40°C  
–5  
–7.5  
–10  
0
0.25  
0.5  
0.75  
1
1.25  
1.5  
1.75  
2
0
0.5  
1
1.5  
2
2.5  
3
High-Level Output Voltage (V)  
High-Level Output Voltage (V)  
DVCC = 3 V  
DVCC = 2 V  
Figure 5-8. Typical High-Level Output Current vs High-Level  
Output Voltage  
Figure 5-9. Typical High-Level Output Current vs High-Level  
Output Voltage  
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5.11.5 VREF+ Built-in Reference  
Table 5-12 lists the characteristics of VREF+.  
Table 5-12. VREF+  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
VREF+  
Positive built-in reference voltage  
EXTREFEN = 1 with 1-mA load current  
2 V, 3 V  
1.15  
1.19  
1.23  
V
Temperature coefficient of built-in  
reference voltage  
TCREF+  
30  
µV/°C  
5.11.6 Timer_A  
Table 5-13 lists the characteristics of Timer_A.  
Table 5-13. Timer_A  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-10  
and Figure 5-11)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
Internal: SMCLK or ACLK,  
External: TACLK,  
fTA  
Timer_A input clock frequency  
2 V, 3 V  
16 MHz  
duty cycle = 50% ±10%  
All capture inputs, minimum pulse  
duration required for capture  
tTA,cap Timer_A capture timing  
2 V, 3 V  
20  
ns  
tTIMR  
Timer Clock  
CCR0-1  
0h  
1h  
CCR0  
CCR0-1  
0h  
CCR0  
tVALID,PWM  
Timer  
TAx.1  
tHD,PWM  
Figure 5-10. Timer PWM Mode  
Capture  
tTIMR  
Timer Clock  
tSU,CCIA  
t,HD,CCIA  
TAx.CCIA  
Figure 5-11. Timer Capture Mode  
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5.11.7 eUSCI  
Table 5-14 lists the supported frequencies of the eUSCI in UART mode.  
Table 5-14. eUSCI (UART Mode) Clock Frequency  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
MAX UNIT  
Internal: SMCLK or MODCLK, External: UCLK,  
duty cycle = 50% ±10%  
feUSCI eUSCI input clock frequency  
2 V, 3 V  
16 MHz  
BITCLK clock frequency  
fBITCLK  
2 V, 3 V  
5
MHz  
(equals baud rate in Mbaud)  
Table 5-15 lists the characteristics of the eUSCI in UART mode.  
Table 5-15. eUSCI (UART Mode)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
UCGLITx = 0  
VCC  
TYP UNIT  
12  
UCGLITx = 1  
UCGLITx = 2  
UCGLITx = 3  
40  
ns  
68  
(1)  
tt  
UART receive deglitch time  
2 V, 3 V  
110  
(1) Pulses on the UART receive input (UCxRX) shorter than the UART receive deglitch time are suppressed. To ensure that pulses are  
correctly recognized, their duration should exceed the maximum specification of the deglitch time.  
Table 5-16 lists the supported frequencies of the eUSCI in SPI master mode.  
Table 5-16. eUSCI (SPI Master Mode) Clock Frequency  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
MAX UNIT  
MHz  
feUSCI eUSCI input clock frequency  
Internal: SMCLK or MODCLK, duty cycle = 50% ±10%  
8
Table 5-17 lists the characteristics of the eUSCI in SPI master mode.  
Table 5-17. eUSCI (SPI Master Mode)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
MAX  
UNIT  
UCSTEM = 0, UCMODEx = 01 or 10  
UCSTEM = 1, UCMODEx = 01 or 10  
UCSTEM = 0, UCMODEx = 01 or 10  
UCSTEM = 1, UCMODEx = 01 or 10  
UCxCLK  
cycles  
tSTE,LEAD STE lead time, STE active to clock  
1
UCxCLK  
cycles  
tSTE,LAG  
STE lag time, last clock to STE inactive  
SOMI input data setup time  
1
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
45  
35  
0
tSU,MI  
ns  
ns  
ns  
ns  
tHD,MI  
SOMI input data hold time  
0
20  
20  
UCLK edge to SIMO valid,  
CL = 20 pF  
tVALID,MO SIMO output data valid time(2)  
SIMO output data hold time(3)  
0
0
tHD,MO  
CL = 20 pF  
(1) fUCxCLK = 1 / 2tLO/HI with tLO/HI = max(tVALID,MO(eUSCI) + tSU,SI(Slave), tSU,MI(eUSCI) + tVALID,SO(Slave)  
)
For the slave parameters tSU,SI(Slave) and tVALID,SO(Slave), see the SPI parameters of the attached slave.  
(2) Specifies the time to drive the next valid data to the SIMO output after the output changing UCLK clock edge. See the timing diagrams  
in Figure 5-12 and Figure 5-13.  
(3) Specifies how long data on the SIMO output is valid after the output changing UCLK clock edge. Negative values indicate that the data  
on the SIMO output can become invalid before the output changing clock edge observed on UCLK. See the timing diagrams in Figure 5-  
12 and Figure 5-13.  
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1/fUCxCLK  
CKPL = 0  
CKPL = 1  
UCLK  
tLOW/HIGH  
tLOW/HIGH  
tSU,MI  
tHD,MI  
SOMI  
SIMO  
tVALID,MO  
Figure 5-12. SPI Master Mode, CKPH = 0  
1/fUCxCLK  
CKPL = 0  
CKPL = 1  
UCLK  
tLOW/HIGH  
tLOW/HIGH  
tHD,MI  
tSU,MI  
SOMI  
SIMO  
tVALID,MO  
Figure 5-13. SPI Master Mode, CKPH = 1  
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Table 5-18 lists the characteristics of the eUSCI in SPI slave mode.  
Table 5-18. eUSCI (SPI Slave Mode)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)  
PARAMETER  
TEST CONDITIONS  
VCC  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
2 V  
3 V  
MIN  
55  
MAX UNIT  
tSTE,LEAD STE lead time, STE active to clock  
ns  
45  
20  
tSTE,LAG  
STE lag time, Last clock to STE inactive  
ns  
20  
65  
ns  
40  
tSTE,ACC STE access time, STE active to SOMI data out  
40  
ns  
35  
STE disable time, STE inactive to SOMI high  
tSTE,DIS  
impedance  
6
4
tSU,SI  
SIMO input data setup time  
SIMO input data hold time  
ns  
ns  
12  
12  
tHD,SI  
65  
ns  
40  
UCLK edge to SOMI valid,  
CL = 20 pF  
tVALID,SO SOMI output data valid time(2)  
5
5
(3)  
tHD,SO  
SOMI output data hold time  
CL = 20 pF  
ns  
(1) fUCxCLK = 1/2tLO/HI with tLO/HI max(tVALID,MO(Master) + tSU,SI(eUSCI), tSU,MI(Master) + tVALID,SO(eUSCI)  
)
For the master parameters tSU,MI(Master) and tVALID,MO(Master), see the SPI parameters of the attached master.  
(2) Specifies the time to drive the next valid data to the SOMI output after the output changing UCLK clock edge. See the timing diagrams  
in Figure 5-14 and Figure 5-15.  
(3) Specifies how long data on the SOMI output is valid after the output changing UCLK clock edge. See the timing diagrams in Figure 5-14  
and Figure 5-15.  
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tSTE,LEAD  
tSTE,LAG  
STE  
1/fUCxCLK  
CKPL = 0  
CKPL = 1  
UCLK  
tSU,SIMO  
tHD,SIMO  
tLOW/HIGH  
tLOW/HIGH  
SIMO  
SOMI  
tACC  
tVALID,SOMI  
tDIS  
Figure 5-14. SPI Slave Mode, CKPH = 0  
tSTE,LEAD  
tSTE,LAG  
STE  
1/fUCxCLK  
CKPL = 0  
CKPL = 1  
UCLK  
tLOW/HIGH  
tLOW/HIGH  
tHD,SI  
tSU,SI  
SIMO  
SOMI  
tACC  
tDIS  
tVALID,SO  
Figure 5-15. SPI Slave Mode, CKPH = 1  
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Table 5-19 lists the characteristics of the eUSCI in I2C mode.  
Table 5-19. eUSCI (I2C Mode)  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-16)  
PARAMETER  
eUSCI input clock frequency  
SCL clock frequency  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
Internal: SMCLK or MODCLK,  
External: UCLK  
Duty cycle = 50% ±10%  
feUSCI  
fSCL  
16 MHz  
2 V, 3 V  
2 V, 3 V  
0
4.0  
0.6  
4.7  
0.6  
0
400 kHz  
µs  
fSCL = 100 kHz  
fSCL > 100 kHz  
fSCL = 100 kHz  
fSCL > 100 kHz  
tHD,STA Hold time (repeated) START  
tSU,STA  
Setup time for a repeated START  
2 V, 3 V  
µs  
tHD,DAT Data hold time  
tSU,DAT Data setup time  
2 V, 3 V  
2 V, 3 V  
ns  
ns  
250  
4.0  
0.6  
50  
fSCL = 100 kHz  
fSCL > 100 kHz  
UCGLITx = 0  
UCGLITx = 1  
UCGLITx = 2  
UCGLITx = 3  
UCCLTOx = 1  
UCCLTOx = 2  
UCCLTOx = 3  
tSU,STO Setup time for STOP  
2 V, 3 V  
µs  
600  
25  
300  
ns  
Pulse duration of spikes suppressed by  
input filter  
tSP  
2 V, 3 V  
12.5  
6.3  
150  
75  
27  
30  
33  
tTIMEOUT Clock low time-out  
2 V, 3 V  
ms  
tHD,STA  
tSU,STA  
tHD,STA  
tBUF  
SDA  
SCL  
tLOW  
tHIGH  
tSP  
tSU,DAT  
tSU,STO  
tHD,DAT  
Figure 5-16. I2C Mode Timing  
34  
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5.11.8 ADC  
Table 5-20 lists the input requirements of the ADC.  
Table 5-20. ADC, Power Supply and Input Range Conditions  
over operating free-air temperature range (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
2.0  
0
TYP  
MAX UNIT  
DVCC ADC supply voltage  
3.6  
V
V
V(Ax)  
Analog input voltage range  
All ADC pins  
DVCC  
Operating supply current into DVCC  
terminal, reference current not  
included, repeat-single-channel  
mode  
2 V  
3 V  
185  
207  
fADCCLK = 5 MHz, ADCON = 1,  
REFON = 0, SHT0 = 0, SHT1 = 0,  
ADCDIV = 0, ADCCONSEQx = 10b  
IADC  
µA  
Only one terminal Ax can be selected at one  
time, from the pad to the ADC capacitor  
array, including wiring and pad  
CI  
Input capacitance  
2.2 V  
1.6  
34  
2.0  
2
pF  
RI,MUX Input MUX ON resistance  
DVCC = 2 V, 0 V VAx DVCC  
kΩ  
kΩ  
RI,Misc Input miscellaneous resistance  
Table 5-21 lists the timing parameters of the ADC.  
Table 5-21. ADC, 10-Bit Timing Parameters  
over operating free-air temperature range (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
For specified performance of ADC linearity  
parameters  
2 V to  
3.6 V  
fADCCLK  
fADCOSC  
0.45  
5
5.5 MHz  
Internal ADC oscillator  
(MODOSC)  
2 V to  
3.6 V  
ADCDIV = 0, fADCCLK = fADCOSC  
4.5  
5.0  
5.5 MHz  
REFON = 0, Internal oscillator,  
10 ADCCLK cycles, 10-bit mode,  
fADCOSC = 4.5 MHz to 5.5 MHz  
2 V to  
3.6 V  
2.18  
2.67  
µs  
tCONVERT  
Conversion time  
External fADCCLK from ACLK or SMCLK,  
ADCSSEL 0  
2 V to  
3.6 V  
12 ×  
1 / fADCCLK  
The error in a conversion started after tADCON is  
less than ±0.5 LSB,  
Reference and input signal already settled  
RS = 1000 Ω, RI(1) = 36000 Ω, CI = 3.5 pF,  
Approximately 8 Tau (t) are required for an error  
of less than ±0.5 LSB(2)  
Turnon settling time of  
the ADC  
tADCON  
100  
ns  
µs  
2 V  
3 V  
1.5  
2.0  
tSample  
Sampling time  
(1) RI = RI,MUX + RI,Misc  
(2) tSample = ln(2n+1) × τ, where n = ADC resolution, τ = (RI + RS) × CI  
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Table 5-22 lists the linearity parameters of the ADC.  
Table 5-22. ADC, 10-Bit Linearity Parameters  
over operating free-air temperature range (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VCC  
MIN  
TYP  
MAX UNIT  
2.4 V to  
3.6 V  
Integral linearity error (10-bit mode)  
–2  
2
EI  
Veref+ as reference  
Veref+ as reference  
Veref+ as reference  
LSB  
2
2 V to  
3.6 V  
Integral linearity error (8-bit mode)  
Differential linearity error (10-bit mode)  
Differential linearity error (8-bit mode)  
Offset error (10-bit mode)  
–2  
–1  
2.4 V to  
3.6 V  
1
ED  
LSB  
1
2 V to  
3.6 V  
–1  
2.4 V to  
3.6 V  
–6.5  
–6.5  
6.5  
mV  
6.5  
EO  
2 V to  
3.6 V  
Offset error (8-bit mode)  
Veref+ as reference  
–2.0  
–3.0%  
–2.0  
2.0  
3.0%  
2.0  
LSB  
LSB  
LSB  
LSB  
2.4 V to  
3.6 V  
Gain error (10-bit mode)  
Internal 1.5-V reference  
Veref+ as reference  
EG  
2 V to  
3.6 V  
Gain error (8-bit mode)  
Internal 1.5-V reference  
Veref+ as reference  
–3.0%  
–2.0  
3.0%  
2.0  
2.4 V to  
3.6 V  
Total unadjusted error (10-bit mode)  
Total unadjusted error (8-bit mode)  
Internal 1.5-V reference  
Veref+ as reference  
–3.0%  
–2.0  
3.0%  
2.0  
ET  
2 V to  
3.6 V  
Internal 1.5-V reference  
–3.0%  
3.0%  
ADCON = 1, INCH = 0Ch,  
TA = 0°C  
(1)  
VSENSOR  
See  
3 V  
3 V  
913  
mV  
(2)  
TCSENSOR See  
ADCON = 1, INCH = 0Ch  
3.35  
mV/°C  
ADCON = 1, INCH = 0Ch, Error  
of conversion result 1 LSB,  
AM and all LPMs above LPM3  
3 V  
3 V  
30  
tSENSOR  
(sample)  
Sample time required if channel 12 is  
selected(3)  
µs  
ADCON = 1, INCH = 0Ch, Error  
of conversion result 1 LSB,  
LPM3  
100  
(1) The temperature sensor offset can vary significantly. TI recommends a single-point calibration to minimize the offset error of the built-in  
temperature sensor.  
(2) The device descriptor structure contains calibration values for 30°C and 85°C for each available reference voltage level. The sensor  
voltage can be computed as VSENSE = TCSENSOR × (Temperature, °C) + VSENSOR , where TCSENSOR and VSENSOR can be computed  
from the calibration values for higher accuracy.  
(3) The typical equivalent impedance of the sensor is 700 kΩ. The sample time required includes the sensor on time, tSENSOR(on)  
.
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5.11.9 FRAM  
Table 5-23 lists the characteristics of the FRAM.  
Table 5-23. FRAM  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
1015  
100  
40  
TYP  
MAX  
UNIT  
Read and write endurance  
cycles  
TJ = 25°C  
tRetention  
Data retention duration  
TJ = 70°C  
TJ = 85°C  
years  
10  
(1)  
IWRITE  
IERASE  
tWRITE  
Current to write into FRAM  
Erase current  
IREAD  
nA  
nA  
ns  
N/A(2)  
(3)  
Write time  
tREAD  
(4)  
(4)  
NWAITSx = 0  
NWAITSx = 1  
1/fSYSTEM  
2/fSYSTEM  
tREAD  
Read time  
ns  
(1) Writing to FRAM does not require a setup sequence or additional power when compared to reading from FRAM. The FRAM read  
current IREAD is included in the active mode current consumption parameter IAM,FRAM  
.
(2) FRAM does not require a special erase sequence.  
(3) Writing into FRAM is as fast as reading.  
(4) The maximum read (and write) speed is specified by fSYSTEM using the appropriate wait state settings (NWAITSx).  
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5.11.10 Debug and Emulation  
Table 5-24 lists the characteristics of the Spy-Bi-Wire interface.  
Table 5-24. JTAG, Spy-Bi-Wire Interface  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-17)  
PARAMETER  
Spy-Bi-Wire input frequency  
VCC  
MIN  
0
TYP  
MAX UNIT  
fSBW  
2 V, 3 V  
2 V, 3 V  
10  
15  
MHz  
µs  
tSBW,Low  
Spy-Bi-Wire low clock pulse duration  
0.028  
SBWTDIO setup time (before falling edge of SBWTCK in TMS and  
TDI slot, Spy-Bi-Wire)  
tSU, SBWTDIO  
tHD, SBWTDIO  
tValid, SBWTDIO  
tSBW, En  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
4
ns  
ns  
ns  
µs  
SBWTDIO hold time (after rising edge of SBWTCK in TMS and TDI  
slot, Spy-Bi-Wire)  
19  
SBWTDIO data valid time (after falling edge of SBWTCK in TDO  
slot, Spy-Bi-Wire)  
31  
Spy-Bi-Wire enable time (TEST high to acceptance of first clock  
110  
(1)  
edge)  
tSBW,Ret  
Rinternal  
Spy-Bi-Wire return to normal operation time(2)  
2 V, 3 V  
2 V, 3 V  
15  
20  
100  
50  
µs  
Internal pulldown resistance on TEST  
35  
kΩ  
(1) Tools that access the Spy-Bi-Wire interface must wait for the tSBW,En time after pulling the TEST/SBWTCK pin high before applying the  
first SBWTCK clock edge.  
(2) Maximum tSBW,Ret time after pulling or releasing the TEST/SBWTCK pin low until the Spy-Bi-Wire pins revert from their Spy-Bi-Wire  
function to their application function. This time applies only if the Spy-Bi-Wire mode is selected.  
tSBW,EN  
tSBW,Low  
1/fSBW  
tSBW,High  
tSBW,Ret  
TEST/SBWTCK  
tEN,SBWTDIO  
tValid,SBWTDIO  
RST/NMI/SBWTDIO  
tSU,SBWTDIO  
tHD,SBWTDIO  
Figure 5-17. JTAG Spy-Bi-Wire Timing  
38  
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Table 5-25 lists the characteristics of the 4-wire JTAG interface.  
Table 5-25. JTAG, 4-Wire Interface  
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-18)  
PARAMETER  
VCC  
MIN  
0
TYP  
MAX UNIT  
fTCK  
TCK input frequency(1)  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
2 V, 3 V  
10 MHz  
tTCK,Low  
tTCK,High  
tSU,TMS  
tHD,TMS  
tSU,TDI  
tHD,TDI  
TCK low clock pulse duration  
15  
15  
11  
3
ns  
ns  
ns  
ns  
ns  
ns  
TCK high clock pulse duration  
TMS setup time (before rising edge of TCK)  
TMS hold time (after rising edge of TCK)  
TDI setup time (before rising edge of TCK)  
TDI hold time (after rising edge of TCK)  
13  
5
tZ-Valid,TDO TDO high impedance to valid output time (after falling edge of TCK)  
tValid,TDO TDO to new valid output time (after falling edge of TCK)  
tValid-Z,TDO TDO valid to high-impedance output time (after falling edge of TCK)  
26  
26  
ns  
ns  
ns  
µs  
kΩ  
26  
tJTAG,Ret  
Rinternal  
Spy-Bi-Wire return to normal operation time  
Internal pulldown resistance on TEST  
15  
20  
100  
50  
2 V, 3 V  
35  
(1) fTCK may be restricted to meet the timing requirements of the module selected.  
1/fTCK  
tTCK,Low  
tTCK,High  
TCK  
TMS  
tSU,TMS  
tHD,TMS  
TDI  
(or TDO as TDI)  
tSU,TDI  
tHD,TDI  
TDO  
tZ-Valid,TDO  
tValid,TDO  
tValid-Z,TDO  
tJTAG,Ret  
TEST  
Figure 5-18. JTAG 4-Wire Timing  
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6 Detailed Description  
6.1 Overview  
The MSP430FR2433 is an ultra-low-power MCU. The architecture, combined with extensive low-power  
modes, is optimized to achieve extended battery life in, for example, portable measurement applications.  
The MCU features four 16-bit timers, three eUSCIs that support UART, SPI, and I2C, a hardware  
multiplier, an RTC module with alarm capabilities, and a high-performance 10-bit ADC.  
6.2 CPU  
The MSP430 CPU has a 16-bit RISC architecture that is highly transparent to the application. All  
operations, other than program-flow instructions, are performed as register operations in conjunction with  
seven addressing modes for source operand and four addressing modes for destination operand.  
The CPU is integrated with 16 registers that provide reduced instruction execution time. The register-to-  
register operation execution time is one cycle of the CPU clock.  
Four of the registers, R0 to R3, are dedicated as program counter (PC), stack pointer (SP), status register  
(SR), and constant generator (CG), respectively. The remaining registers are general-purpose registers.  
Peripherals are connected to the CPU using data, address, and control buses. Peripherals can be  
managed with all instructions.  
6.3 Operating Modes  
The MSP430FR2433 MCU has one active mode and several software-selectable low-power modes of  
operation (see Table 6-1). An interrupt event can wake the MCU from low-power mode (LPM0 or LPM3),  
service the request, and restore the MCU back to the low-power mode on return from the interrupt  
program. Low-power modes LPM3.5 and LPM4.5 disable the core supply to minimize power consumption.  
Table 6-1. Operating Modes  
AM  
LPM0  
CPU OFF  
16 MHz  
LPM3  
STANDBY  
40 kHz  
LPM4  
OFF  
0
LPM3.5  
ONLY RTC  
40 kHz  
LPM4.5  
SHUTDOWN  
0
ACTIVE  
MODE  
(FRAM ON)  
MODE  
Maximum system clock  
16 MHz  
1.2 µA with  
RTC counter  
only in LFXT  
0.73 µA with  
RTC counter  
only in LFXT  
0.49 µA  
without SVS  
16 nA without  
SVS  
Power consumption at 25°C, 3 V  
126 µA/MHz  
40 µA/MHz  
Wake-up time  
N/A  
N/A  
Instant  
All  
10 µs  
10 µs  
I/O  
350 µs  
350 µs  
I/O  
RTC  
I/O  
Wake-up events  
All  
Full  
Regulation  
Full  
Regulation  
Partial Power Partial Power Partial Power  
Regulator  
Power Down  
Down  
Optional  
On  
Down  
Optional  
On  
Down  
Optional  
On  
Power  
SVS  
On  
On  
Optional  
On  
Brownout  
MCLK  
SMCLK  
FLL  
On  
On  
Active  
Off  
Off  
Off  
Off  
Off  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
DCO  
Off  
Off  
Off  
Off  
Clock(1)  
MODCLK  
REFO  
Off  
Off  
Off  
Off  
Optional  
Optional  
Optional  
Optional  
Off  
Off  
Off  
ACLK  
Off  
Off  
Off  
XT1CLK  
VLOCLK  
Off  
Optional  
Optional  
Off  
Off  
Off  
(1) The status shown for LPM4 applies to internal clocks only.  
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Table 6-1. Operating Modes (continued)  
AM  
LPM0  
LPM3  
LPM4  
LPM3.5  
LPM4.5  
ACTIVE  
MODE  
MODE  
CPU OFF  
STANDBY  
OFF  
ONLY RTC  
SHUTDOWN  
(FRAM ON)  
CPU  
On  
Off  
Off  
Off  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
FRAM  
On  
On  
Core  
RAM  
On  
On  
On  
Off  
Backup memory(2)  
Timer0_A3  
Timer1_A3  
Timer2_A2  
Timer3_A2  
WDT  
On  
On  
On  
On  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Off  
Off  
Off  
Off  
Off  
Off  
Peripherals  
eUSCI_A0  
eUSCI_A1  
eUSCI_B0  
CRC  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
ADC  
Optional  
Optional  
Off  
RTC  
Optional  
General-purpose  
digital input/output  
I/O  
On  
Optional  
State Held  
State Held  
State Held  
State Held  
(2) Backup memory contains 32 bytes of register space in peripheral memory. See Table 6-24 and Table 6-43 for its memory allocation.  
NOTE  
XT1CLK and VLOCLK can be active during LPM4 if requested by low-frequency peripherals,  
such as RTC or WDT.  
6.4 Interrupt Vector Addresses  
The interrupt vectors and the power-up start address are in the address range 0FFFFh to 0FF80h (see  
Table 6-2). The vector contains the 16-bit address of the appropriate interrupt-handler instruction  
sequence.  
Table 6-2. Interrupt Sources, Flags, and Vectors  
SYSTEM  
INTERRUPT  
WORD  
ADDRESS  
INTERRUPT SOURCE  
INTERRUPT FLAG  
PRIORITY  
System Reset  
Power up, Brownout, Supply supervisor  
External reset RST  
Watchdog time-out, Key violation  
FRAM access time error  
FRAM uncorrectable bit error detection  
Software POR, BOR  
PMMPORIFG, PMMBORIFG, SVSHIFG  
PMMRSTIFG  
WDTIFG  
ACCTEIFG  
UBDIFG  
SYSRSTIV  
FLLUNLOCKIFG  
Reset  
FFFEh  
63, Highest  
FLL unlock error  
System NMI  
Vacant memory access  
JTAG mailbox  
VMAIFG  
JMBINIFG, JMBOUTIFG  
CBDIFG, UBDIFG  
Nonmaskable  
Nonmaskable  
FFFCh  
FFFAh  
62  
61  
FRAM bit error detection  
User NMI  
External NMI  
Oscillator fault  
NMIIFG  
OFIFG  
Timer0_A3  
TA0CCR0 CCIFG0  
Maskable  
Maskable  
FFF8h  
FFF6h  
60  
59  
TA0CCR1 CCIFG1, TA0CCR2 CCIFG2,  
TA0IFG (TA0IV)  
Timer0_A3  
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Table 6-2. Interrupt Sources, Flags, and Vectors (continued)  
SYSTEM  
INTERRUPT  
WORD  
ADDRESS  
INTERRUPT SOURCE  
Timer1_A3  
INTERRUPT FLAG  
PRIORITY  
TA1CCR0 CCIFG0  
Maskable  
Maskable  
Maskable  
FFF4h  
58  
57  
TA1CCR1 CCIFG1, TA1CCR2 CCIFG2,  
TA1IFG (TA1IV)  
Timer1_A3  
FFF2h  
Timer2_A2  
Timer2_A2  
TA2CCR0 CCIFG0  
TA2CCR1 CCIFG1, TA2IFG (TA2IV)  
TA3CCR0 CCIFG0  
FFF0h  
FFEEh  
FFECh  
FFEAh  
FFE8h  
FFE6h  
56  
55  
54  
53  
52  
51  
Timer3_A2  
Maskable  
Timer3_A2  
TA3CCR1 CCIFG1, TA3IFG (TA3IV)  
RTCIFG  
RTC  
Maskable  
Maskable  
Watchdog timer interval mode  
WDTIFG  
UCTXCPTIFG, UCSTTIFG, UCRXIFG,  
UCTXIFG (UART mode)  
UCRXIFG, UCTXIFG (SPI mode)  
(UCA0IV)  
eUSCI_A0 receive or transmit  
eUSCI_A1 receive or transmit  
Maskable  
Maskable  
FFE4h  
FFE2h  
50  
49  
UCTXCPTIFG, UCSTTIFG, UCRXIFG,  
UCTXIFG (UART mode)  
UCRXIFG, UCTXIFG (SPI mode)  
(UCA1IV)  
UCB0RXIFG, UCB0TXIFG (SPI mode)  
UCALIFG, UCNACKIFG, UCSTTIFG,  
UCSTPIFG, UCRXIFG0, UCTXIFG0,  
UCRXIFG1, UCTXIFG1, UCRXIFG2,  
UCTXIFG2, UCRXIFG3, UCTXIFG3,  
UCCNTIFG, UCBIT9IFG (I2C mode)  
(UCB0IV)  
eUSCI_B0 receive or transmit  
Maskable  
Maskable  
FFE0h  
FFDEh  
48  
47  
ADCIFG0, ADCINIFG, ADCLOIFG,  
ADCHIIFG, ADCTOVIFG, ADCOVIFG  
(ADCIV)  
ADC  
P1  
P2  
P1IFG.0 to P1IFG.7 (P1IV)  
P2IFG.0 to P2IFG.7 (P2IV)  
Maskable  
Maskable  
FFDCh  
FFDAh  
46  
45, Lowest  
FFD6h to  
FF88h  
Reserved  
Reserved  
Maskable  
BSL Signature 2  
BSL Signature 1  
JTAG Signature 2  
JTAG Signature 1  
0FF86h  
0FF84h  
0FF82h  
0FF80h  
Signatures  
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6.5 Bootloader (BSL)  
The BSL lets users program the FRAM or RAM using either the UART serial interface or the I2C interface.  
Access to the MCU memory through the BSL is protected by an user-defined password. Use of the BSL  
requires four pins (see Table 6-3 and Table 6-4). BSL entry requires a specific entry sequence on the  
RST/NMI/SBWTDIO and TEST/SBWTCK pins. This device supports the blank device detection to  
automatically invoke the BSL, skipping this special entry sequence, to save time and simplify onboard  
programming. For a complete description of the features of the BSL, see the MSP430 FRAM Device  
Bootloader (BSL) User's Guide.  
Table 6-3. UART BSL Pin Requirements and Functions  
DEVICE SIGNAL  
BSL FUNCTION  
Entry sequence signal  
Entry sequence signal  
Data transmit  
RST/NMI/SBWTDIO  
TEST/SBWTCK  
P1.4  
P1.5  
VCC  
VSS  
Data receive  
Power supply  
Ground supply  
Table 6-4. I2C BSL Pin Requirements and Functions  
DEVICE SIGNAL  
BSL FUNCTION  
Entry sequence signal  
Entry sequence signal  
Data transmit and receive  
Clock  
RST/NMI/SBWTDIO  
TEST/SBWTCK  
P1.2  
P1.3  
VCC  
VSS  
Power supply  
Ground supply  
6.6 JTAG Standard Interface  
The MSP low-power microcontrollers support the standard JTAG interface, which requires four signals for  
sending and receiving data. The JTAG signals are shared with general-purpose I/O. The TEST/SBWTCK  
pin enables the JTAG signals. In addition to these signals, the RST/NMI/SBWTDIO is required to interface  
with MSP430 development tools and device programmers. Table 6-5 lists the JTAG pin requirements. For  
further details on interfacing to development tools and device programmers, see the MSP430 Hardware  
Tools User's Guide. For details on using the JTAG interface, see MSP430 Programming With the JTAG  
Interface.  
Table 6-5. JTAG Pin Requirements and Function  
DEVICE SIGNAL  
P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+  
P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5  
P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6  
P1.7/UCA0STE/SMCLK/TDO/A7  
TEST/SBWTCK  
DIRECTION  
JTAG FUNCTION  
JTAG clock input  
JTAG state control  
JTAG data input, TCLK input  
JTAG data output  
Enable JTAG pins  
External reset  
IN  
IN  
IN  
OUT  
IN  
IN  
RST/NMI/SBWTDIO  
DVCC  
Power supply  
DVSS  
Ground supply  
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6.7 Spy-Bi-Wire Interface (SBW)  
The MSP low-power microcontrollers support the 2-wire SBW interface. SBW can be used to interface  
with MSP development tools and device programmers. Table 6-6 lists the SBW interface pin requirements.  
For further details on interfacing to development tools and device programmers, see the MSP430  
Hardware Tools User's Guide. For details on using the SBW interface, see the MSP430 Programming  
With the JTAG Interface.  
Table 6-6. Spy-Bi-Wire Pin Requirements and Functions  
DEVICE SIGNAL  
TEST/SBWTCK  
RST/NMI/SBWTDIO  
DVCC  
DIRECTION  
SBW FUNCTION  
Spy-Bi-Wire clock input  
Spy-Bi-Wire data input and output  
Power supply  
IN  
IN, OUT  
DVSS  
Ground supply  
6.8 FRAM  
The FRAM can be programmed using the JTAG port, SBW, the BSL, or in-system by the CPU. Features  
of the FRAM include:  
Byte and word access capability  
Programmable wait state generation  
Error correction coding (ECC)  
6.9 Memory Protection  
The device features memory protection for user access authority and write protection, including options to:  
Secure the whole memory map to prevent unauthorized access from JTAG port or BSL, by writing  
JTAG and BSL signatures using the JTAG port, SBW, the BSL, or in-system by the CPU.  
Enable write protection to prevent unwanted write operation to FRAM contents by setting the control  
bits in the System Configuration 0 register. For detailed information, see the System Resets, Interrupts,  
and Operating Modes, System Control Module (SYS) chapter in the MP430FR4xx and MP430FR2xx  
Family User's Guide.  
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6.10 Peripherals  
Peripherals are connected to the CPU through data, address, and control buses. All peripherals can be  
handled by using all instructions in the memory map. For complete module description, see the  
MP430FR4xx and MP430FR2xx Family User's Guide.  
6.10.1 Power-Management Module (PMM)  
The PMM includes an integrated voltage regulator that supplies the core voltage to the device. The PMM  
also includes supply voltage supervisor (SVS) and brownout protection. The brownout reset circuit (BOR)  
is implemented to provide the proper internal reset signal to the device during power on and power off.  
The SVS circuitry detects if the supply voltage drops below a user-selectable safe level. SVS circuitry is  
available on the primary supply.  
The device contains two on-chip reference: 1.5 V for internal reference and 1.2 V for external reference.  
The 1.5-V reference is internally connected to ADC channel 13. DVCC is internally connected to ADC  
channel 15. When DVCC is set as the reference voltage for ADC conversion, the DVCC can be easily  
represent as Equation 1 by using ADC sampling 1.5-V reference without any external components  
support.  
DVCC = (1023 × 1.5 V) ÷ 1.5-V reference ADC result  
(1)  
A
1.2-V reference voltage can be buffered and output to P1.4/MCLK/TCK/A4/VREF+, when  
EXTREFEN = 1 in the PMMCTL1 register. ADC channel 4 can also be selected to monitor this voltage.  
For more detailed information, see the MP430FR4xx and MP430FR2xx Family User's Guide.  
6.10.2 Clock System (CS) and Clock Distribution  
The clock system includes a 32-kHz crystal oscillator (XT1), an internal very-low-power low-frequency  
oscillator (VLO), an integrated 32-kHz RC oscillator (REFO), an integrated internal digitally controlled  
oscillator (DCO) that may use frequency-locked loop (FLL) locking with internal or external 32-kHz  
reference clock, and an on-chip asynchronous high-speed clock (MODOSC). The clock system is  
designed for cost-effective designs with minimal external components. A fail-safe mechanism is included  
for XT1. The clock system module offers the following clock signals.  
Main Clock (MCLK): The system clock used by the CPU and all relevant peripherals accessed by the  
bus. All clock sources except MODOSC can be selected as the source with a predivider of 1, 2, 4, 8,  
16, 32, 64, or 128.  
Sub-Main Clock (SMCLK): The subsystem clock used by the peripheral modules. SMCLK derives from  
the MCLK with a predivider of 1, 2, 4, or 8. This means SMCLK is always equal to or less than MCLK.  
Auxiliary Clock (ACLK): This clock is derived from the external XT1 clock or internal REFO clock up to  
40 kHz.  
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All peripherals may have one or several clock sources depending on specific functionality. Table 6-7 lists  
the clock distribution used in this device.  
Table 6-7. Clock Distribution  
CLOCK  
SOURCE  
SELECT  
BITS  
MCLK  
SMCLK  
ACLK  
MODCLK  
XT1CLK  
VLOCLK  
EXTERNAL PIN  
Frequency  
Range  
DC to  
16 MHz  
DC to  
16 MHz  
DC to  
40 kHz  
5 MHz  
±10%  
DC to  
40 kHz  
10 kHz  
±50%  
CPU  
N/A  
N/A  
Default  
FRAM  
RAM  
Default  
N/A  
Default  
CRC  
N/A  
Default  
I/O  
N/A  
Default  
TA0  
TASSEL  
TASSEL  
TASSEL  
TASSEL  
UCSSEL  
UCSSEL  
UCSSEL  
WDTSSEL  
ADCSSEL  
RTCSS  
10b  
01b  
01b  
01b  
01b  
00b (TA0CLK pin)  
TA1  
10b  
00b (TA1CLK pin)  
TA2  
10b  
TA3  
10b  
eUSCI_A0  
eUSCI_A1  
eUSCI_B0  
WDT  
10b or 11b  
10b or 11b  
10b or 11b  
00b  
01b  
01b  
01b  
00b (UCA0CLK pin)  
00b (UCA1CLK pin)  
10b or 11b  
00b (UCB0CLK pin)  
01b  
01b  
ADC  
11b  
00b  
RTC  
01b  
10b  
11b  
6.10.3 General-Purpose Input/Output Port (I/O)  
Up to 19 I/O ports are implemented.  
P1 and P2 are full 8-bit ports; P3 has 3 bits implemented.  
All individual I/O bits are independently programmable.  
Any combination of input, output, and interrupt conditions is possible.  
All ports support programmable pullup or pulldown.  
Edge-selectable interrupt and LPM3.5 and LPM4.5 wake-up input capability is available for P1 and P2.  
Read and write access to port-control registers is supported by all instructions.  
Ports can be accessed byte-wise or word-wise in pairs.  
NOTE  
Configuration of digital I/Os after BOR reset  
To prevent any cross currents during start-up of the device, all port pins are high-impedance  
with Schmitt triggers and module functions disabled. To enable the I/O functions after a BOR  
reset, the ports must be configured first and then the LOCKLPM5 bit must be cleared. For  
details, see the Configuration After Reset section in the Digital I/O chapter of the  
MP430FR4xx and MP430FR2xx Family User's Guide.  
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6.10.4 Watchdog Timer (WDT)  
The primary function of the WDT module is to perform a controlled system restart after a software problem  
occurs. If the selected time interval expires, a system reset is generated. If the watchdog function is not  
needed in an application, the module can be configured as interval timer and can generate interrupts at  
selected time intervals. Table 6-8 lists the system clocks that can be used to source the WDT.  
Table 6-8. WDT Clocks  
NORMAL OPERATION  
WDTSSEL  
(WATCHDOG AND INTERVAL TIMER MODE)  
00  
01  
10  
11  
SMCLK  
ACLK  
VLOCLK  
Reserved  
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6.10.5 System (SYS) Module  
The SYS module handles many of the system functions within the device. These features include power-  
on reset (POR) and power-up clear (PUC) handling, NMI source selection and management, reset  
interrupt vector generators, bootloader entry mechanisms, and configuration management (device  
descriptors). The SYS module also includes a data exchange mechanism through SBW called a JTAG  
mailbox mail box that can be used in the application. Table 6-9 summarizes the interrupts that are  
managed by the SYS module.  
Table 6-9. System Module Interrupt Vector Registers  
INTERRUPT VECTOR  
ADDRESS  
INTERRUPT EVENT  
VALUE  
PRIORITY  
REGISTER  
No interrupt pending  
Brownout (BOR)  
00h  
02h  
Highest  
RSTIFG RST/NMI (BOR)  
PMMSWBOR software BOR (BOR)  
LPMx.5 wake up (BOR)  
Security violation (BOR)  
Reserved  
04h  
06h  
08h  
0Ah  
0Ch  
SVSHIFG SVSH event (BOR)  
Reserved  
0Eh  
10h  
SYSRSTIV, System Reset  
015Eh  
Reserved  
12h  
PMMSWPOR software POR (POR)  
WDTIFG watchdog time-out (PUC)  
WDTPW password violation (PUC)  
FRCTLPW password violation (PUC)  
Uncorrectable FRAM bit error detection  
Peripheral area fetch (PUC)  
PMMPW PMM password violation (PUC)  
FLL unlock (PUC)  
14h  
16h  
18h  
1Ah  
1Ch  
1Eh  
20h  
24h  
Reserved  
22h, 26h to 3Eh  
00h  
Lowest  
Highest  
No interrupt pending  
SVS low-power reset entry  
Uncorrectable FRAM bit error detection  
Reserved  
02h  
04h  
06h  
Reserved  
08h  
Reserved  
0Ah  
Reserved  
0Ch  
SYSSNIV, System NMI  
015Ch  
Reserved  
0Eh  
Reserved  
10h  
VMAIFG Vacant memory access  
JMBINIFG JTAG mailbox input  
JMBOUTIFG JTAG mailbox output  
Correctable FRAM bit error detection  
Reserved  
12h  
14h  
16h  
18h  
1Ah to 1Eh  
00h  
Lowest  
Highest  
Lowest  
No interrupt pending  
NMIIFG NMI pin or SVSH event  
OFIFG oscillator fault  
Reserved  
02h  
SYSUNIV, User NMI  
015Ah  
04h  
06h to 1Eh  
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6.10.6 Cyclic Redundancy Check (CRC)  
The 16-bit cyclic redundancy check (CRC) module produces a signature based on a sequence of data  
values and can be used for data checking purposes. The CRC generation polynomial is compliant with  
CRC-16-CCITT standard of x16 + x12 + x5 + 1.  
6.10.7 Enhanced Universal Serial Communication Interface (eUSCI_A0, eUSCI_B0)  
The eUSCI modules are used for serial data communications. The eUSCI_A module supports either  
UART or SPI communications. The eUSCI_B module supports either SPI or I2C communications.  
Additionally, eUSCI_A supports automatic baud-rate detection and IrDA. Table 6-10 lists the pin  
configurations that are required for each eUSCI mode.  
Table 6-10. eUSCI Pin Configurations  
PIN  
P1.4  
P1.5  
P1.6  
P1.7  
P2.6  
P2.5  
P2.4  
P3.1  
PIN  
UART  
TXD  
RXD  
SPI  
SIMO  
SOMI  
SCLK  
STE  
eUSCI_A0  
eUSCI_A1  
eUSCI_B0  
TXD  
RXD  
SIMO  
SOMI  
SCLK  
STE  
I2C  
SPI  
P1.0  
P1.1  
P1.2  
P1.3  
STE  
SCLK  
SIMO  
SOMI  
SDA  
SCL  
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6.10.8 Timers (Timer0_A3, Timer1_A3, Timer2_A2 and Timer3_A2)  
The Timer0_A3 and Timer1_A3 modules are 16-bit timers and counters with three capture/compare  
registers each. Both timers support multiple captures or compares, PWM outputs, and interval timing (see  
Table 6-11 and Table 6-12). Both timers have extensive interrupt capabilities. Interrupts may be generated  
from the counter on overflow conditions and from each capture/compare register.  
The CCR0 registers on Timer0_A3 and Timer1_A3 are not externally connected and can be used only for  
hardware period timing and interrupt generation. In Up mode, these CCR0 registers can be used to set the  
overflow value of the counter.  
Table 6-11. Timer0_A3 Signal Connections  
DEVICE INPUT  
SIGNAL  
MODULE INPUT  
NAME  
MODULE OUTPUT  
SIGNAL  
DEVICE OUTPUT  
SIGNAL  
PORT PIN  
MODULE BLOCK  
P1.0  
TA0CLK  
TACLK  
ACLK  
ACLK (internal)  
SMCLK (internal)  
Timer  
N/A  
SMCLK  
CCI0A  
Timer1_A3 CCI0B  
input  
CCI0B  
CCR0  
CCR1  
TA0  
DVSS  
DVCC  
TA0.1  
GND  
VCC  
P1.1  
P1.2  
CCI1A  
TA0.1  
Timer1_A3 CCI1B  
input  
from RTC (internal)  
CCI1B  
TA1  
TA2  
DVSS  
DVCC  
TA0.2  
GND  
VCC  
CCI2A  
TA0.2  
Timer1_A3 CCI2B  
input,  
CCI2B  
CCR2  
IR Input  
DVSS  
DVCC  
GND  
VCC  
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Table 6-12. Timer1_A3 Signal Connections  
DEVICE INPUT  
SIGNAL  
MODULE INPUT  
NAME  
MODULE OUTPUT  
SIGNAL  
DEVICE OUTPUT  
SIGNAL  
PORT PIN  
MODULE BLOCK  
P1.6  
TA1CLK  
TACLK  
ACLK  
ACLK (internal)  
SMCLK (internal)  
Timer  
N/A  
SMCLK  
CCI0A  
Timer0_A3 CCR0B  
output (internal)  
CCI0B  
CCR0  
CCR1  
CCR2  
TA0  
DVSS  
DVCC  
TA1.1  
GND  
VCC  
P1.5  
P1.4  
CCI1A  
TA1.1  
Timer0_A3 CCR1B  
output (internal)  
CCI1B  
to ADC trigger  
TA1  
TA2  
DVSS  
DVCC  
TA1.2  
GND  
VCC  
CCI2A  
TA1.2  
Timer0_A3 CCR2B  
output (internal)  
CCI2B  
IR Input  
DVSS  
DVCC  
GND  
VCC  
The interconnection of Timer0_A3 and Timer1_A3 can be used to modulate the eUSCI_A pin of  
UCA0TXD/UCA0SIMO in either ASK or FSK mode, with which a user can easily acquire a modulated  
infrared command for directly driving an external IR diode. The IR functions are fully controlled by SYS  
configuration registers 1 including IREN (enable), IRPSEL (polarity select), IRMSEL (mode select),  
IRDSSEL (data select), and IRDATA (data) bits. For more information, see the System Resets, Interrupts,  
and Operating Modes, System Control Module (SYS) chapter in the MP430FR4xx and MP430FR2xx  
Family User's Guide.  
The Timer2_A2 and Timer3_A2 modules are 16-bit timers and counters with two capture/compare  
registers each. Both timers support multiple captures or compares and interval timing (see Table 6-13 and  
Table 6-14). Both timers have extensive interrupt capabilities. Interrupts may be generated from the  
counter on overflow conditions and from each capture register.  
The CCR0 registers on Timer2_TA2 and Timer3_TA2 are not externally connected and can be used only  
for hardware period timing and interrupt generation. In Up mode, these CCR0 registers can be used to set  
the overflow value of the counter. Timer2_A2 and Timer3_A2 are only internally connected and do not  
support PWM output.  
Table 6-13. Timer2_A2 Signal Connections  
MODULE OUTPUT  
DEVICE INPUT SIGNAL MODULE INPUT NAME  
MODULE BLOCK  
DEVICE OUTPUT SIGNAL  
SIGNAL  
ACLK (internal)  
ACLK  
SMCLK  
CCI0A  
CCI0B  
GND  
Timer  
N/A  
SMCLK (internal)  
Timer3_A3 CCI0B input  
Timer3_A3 CCI1B input  
CCR0  
CCR1  
TA0  
DVSS  
DVCC  
VCC  
CCI1A  
CCI1B  
GND  
CCR1  
DVSS  
DVCC  
VCC  
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Table 6-14. Timer3_A2 Signal Connections  
MODULE OUTPUT  
SIGNAL  
DEVICE INPUT SIGNAL MODULE INPUT NAME  
MODULE BLOCK  
DEVICE OUTPUT SIGNAL  
ACLK (internal)  
ACLK  
SMCLK  
CCI0A  
CCI0B  
GND  
Timer  
N/A  
SMCLK (internal)  
Timer3_A3 CCI0B input  
CCR0  
CCR1  
TA0  
DVSS  
DVCC  
VCC  
CCI1A  
CCI1B  
GND  
Timer3_A3 CCI1B input  
CCR1  
DVSS  
DVCC  
VCC  
6.10.9 Hardware Multiplier (MPY)  
The multiplication operation is supported by a dedicated peripheral module. The module performs  
operations with 32-, 24-, 16-, and 8-bit operands. The MPY module supports signed multiplication,  
unsigned multiplication, signed multiply-and-accumulate, and unsigned multiply-and-accumulate  
operations.  
6.10.10 Backup Memory (BAKMEM)  
The BAKMEM supports data retention during LPM3.5. This device provides up to 32 bytes that are  
retained during LPM3.5.  
6.10.11 Real-Time Clock (RTC)  
The RTC is a 16-bit modulo counter that is functional in AM, LPM0, LPM3, and LPM3.5. This module may  
periodically wake up the CPU from LPM0, LPM3, and LPM3.5 based on timing from a low-power clock  
source such as the XT1 and VLO clocks. In AM, SMCLK can drive the RTC to generate high-frequency  
timing events and interrupts. The RTC overflow events trigger:  
Timer0_A3 CCR1B  
ADC conversion trigger when ADCSHSx bits are set as 01b  
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6.10.12 10-Bit Analog-to-Digital Converter (ADC)  
The 10-bit ADC module supports fast 10-bit analog-to-digital conversions with single-ended input. The  
module implements a 10-bit SAR core, sample select control, reference generator and a conversion result  
buffer. A window comparator with lower and upper limits allows CPU-independent result monitoring with  
three window comparator interrupt flags.  
The ADC supports 10 external inputs and 4 internal inputs (see Table 6-15).  
Table 6-15. ADC Channel Connections  
ADCINCHx  
ADC CHANNELS  
EXTERNAL PINOUT  
0
1
A0/Veref+  
P1.0  
P1.1  
P1.2  
P1.3  
P1.4  
P1.5  
P1.6  
P1.7  
NA  
A1  
2
A2/Veref-  
3
A3  
A4(1)  
4
5
A5  
6
A6  
7
A7  
8
A8  
9
A9  
Not used  
NA  
10  
11  
12  
13  
14  
15  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
Not used  
On-chip temperature sensor  
Reference voltage (1.5 V)  
DVSS  
DVCC  
(1) When A4 is used, the PMM 1.2-V reference voltage can be output to this pin by setting the PMM  
control register. The 1.2-V voltage can be directly measured by A4 channel.  
Software or a hardware trigger can start the analog-to-digital conversion. Table 6-16 lists the trigger  
sources that are available.  
Table 6-16. ADC Trigger Signal Connections  
ADCSHSx  
TRIGGER SOURCE  
BINARY  
DECIMAL  
00  
01  
10  
11  
0
1
2
3
ADCSC bit (software trigger)  
RTC event  
TA1.1B  
--  
6.10.13 Embedded Emulation Module (EEM)  
The EEM supports real-time in-system debugging. The EEM on these devices has the following features:  
Three hardware triggers or breakpoints on memory access  
One hardware trigger or breakpoint on CPU register write access  
Up to four hardware triggers that can be combined to form complex triggers or breakpoints  
One cycle counter  
Clock control on module level  
EEM version: S  
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6.11 Input/Output Diagrams  
6.11.1 Port P1 Input/Output With Schmitt Trigger  
Figure 6-1 shows the port diagram. Table 6-17 summarizes the selection of pin function.  
A0..A7  
From SYS (ADCPCTLx)  
P1REN.x  
P1DIR.x  
00  
01  
From Module1  
10  
11  
2 bit  
DVSS  
DVCC  
0
1
00  
01  
P1OUT.x  
From Module1  
From Module2  
DVSS  
10  
11  
2 bit  
P1SEL.x  
EN  
D
To module  
P1IN.x  
P1IE.x  
Bus  
Keeper  
P1 Interrupt  
D
S
Q
P1.0/UCB0STE/TA0CLK/A0/Veref+  
P1.1/UCB0CLK/TA0.1/A1  
P1.2/UCB0SIMO/UCB0SDA/TA0.2/A2/Veref-  
P1.3/UCB0SOMI/UCB0SCL/MCLK/A3  
P1IFG.x  
P1.4/UCA0TXD/UCA0SIMO/TA1.2/TCK/A4/VREF+  
P1.5/UCA0RXD/UCA0SOMI/TA1.1/TMS/A5  
P1.6/UCA0CLK/TA1CLK/TDI/TCLK/A6  
P1.7/UCA0STE/SMCLK/TDO/A7  
Edge  
Select  
P1IES.x  
From JTAG  
To JTAG  
Figure 6-1. Port P1 (P1.0 to P1.7) Input/Output With Schmitt Trigger  
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Table 6-17. Port P1 (P1.0 to P1.7) Pin Functions  
CONTROL BITS AND SIGNALS(1)  
PIN NAME (P1.x)  
x
FUNCTION  
P1DIR.x  
P1SELx  
ADCPCTLx(2)  
JTAG  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
P1.0 (I/O)  
UCB0STE  
TA0CLK  
A0/Veref+  
P1.1 (I/O)  
UCB0CLK  
TA0.CCI1A  
TA0.1  
I: 0; O: 1  
00  
01  
10  
X
0
X
0
P1.0/UCB0STE/  
TA0CLK/A0  
0
0
0
X
1 (x = 0)  
I: 0; O: 1  
00  
01  
0
0
X
P1.1/UCB0CLK/TA0.1/  
A1  
1
0
10  
0
N/A  
1
A1  
X
X
1 (x = 1)  
N/A  
N/A  
N/A  
P1.2 (I/O)  
I: 0; O: 1  
00  
01  
0
0
UCB0SIMO/UCB0SDA  
TA0.CCI2A  
TA0.2  
X
P1.2/UCB0SIMO/  
UCB0SDA/TA0.2/A2  
2
3
0
10  
0
N/A  
1
A2/Veref-  
X
X
1 (x = 2)  
N/A  
N/A  
P1.3 (I/O)  
UCB0SOMI/UCB0SCL  
MCLK  
I: 0; O: 1  
00  
01  
10  
X
0
X
0
N/A  
P1.3/UCB0SOMI/  
UCB0SCL/MCLK/A3  
1
0
N/A  
A3  
X
1 (x = 3)  
N/A  
P1.4 (I/O)  
UCA0TXD/UCA0SIMO  
TA1.CCI2A  
TA1.2  
I: 0; O: 1  
00  
01  
0
0
Disabled  
Disabled  
X
P1.4/UCA0TXD/  
UCA0SIMO/TA1.2/TCK/  
A4 /VREF+  
0
4
5
10  
0
Disabled  
1
A4, VREF+  
JTAG TCK  
P1.5 (I/O)  
UCA0RXD/UCA0SOMI  
TA1.CCI1A  
TA1.1  
X
X
X
1 (x = 4)  
Disabled  
TCK  
X
X
0
0
I: 0; O: 1  
00  
01  
Disabled  
Disabled  
X
P1.5/UCA0RXD/  
UCA0SOMI/TA1.1/TMS/  
A5  
0
10  
0
Disabled  
1
A5  
X
X
X
1 (x = 5)  
Disabled  
TMS  
JTAG TMS  
P1.6 (I/O)  
UCA0CLK  
TA1CLK  
X
X
0
I: 0; O: 1  
00  
01  
10  
X
Disabled  
Disabled  
Disabled  
Disabled  
TDI/TCLK  
Disabled  
Disabled  
Disabled  
Disabled  
TDO  
X
P1.6/UCA0CLK/  
TA1CLK/TDI/TCLK/A6  
6
7
0
0
A6  
X
1 (x = 6)  
JTAG TDI/TCLK  
P1.7 (I/O)  
UCA0STE  
SMCLK  
X
X
X
I: 0; O: 1  
00  
01  
10  
X
0
X
1
0
P1.7/UCA0STE/SMCLK/  
TDO/A7  
0
1 (x = 7)  
X
A7  
X
X
JTAG TDO  
X
(1) X = don't care  
(2) Setting the ADCPCTLx bit in SYSCFG2 register disables both the output driver and input Schmitt trigger to prevent leakage when  
analog signals are applied.  
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6.11.2 Port P2 (P2.0 to P2.2) Input/Output With Schmitt Trigger  
Figure 6-2 shows the port diagram. Table 6-18 summarizes the selection of pin function.  
P2REN.x  
P2DIR.x  
00  
01  
10  
11  
2 bit  
DVSS  
DVCC  
0
1
00  
01  
P2OUT.x  
From Module1  
10  
11  
DVSS  
DVSS  
P2.0/XOUT  
P2.1/XIN  
P2.2/ACLK  
2 bit  
P2SEL.x  
EN  
D
To module  
P2IN.x  
P2IE.x  
Bus  
Keeper  
P2 Interrupt  
D
S
Q
P2IFG.x  
P2IES.x  
Edge  
Select  
Figure 6-2. Port P2 (P2.0 to P2.2) Input/Output With Schmitt Trigger  
Table 6-18. Port P2 (P2.0 to P2.2) Pin Functions  
CONTROL BITS AND SIGNALS(1)  
PIN NAME (P2.x)  
x
0
1
2
FUNCTION  
P2DIR.x  
I: 0; O: 1  
X
P2SELx  
P2.0 (I/O)  
XOUT  
00  
01  
00  
01  
00  
10  
P2.0/XOUT  
P2.1 (I/O)  
XIN  
I: 0; O: 1  
X
P2.1/XIN  
P2.2 (I/O)  
ACLK  
I: 0; O: 1  
1
P2.2/ACLK  
(1) X = don't care  
56  
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6.11.3 Port P2 (P2.3 to P2.7) Input/Output With Schmitt Trigger  
Figure 6-3 shows the port diagram. Table 6-19 summarizes the selection of pin function.  
P2REN.x  
P2DIR.x  
00  
01  
From Module1  
10  
11  
2 bit  
DVSS  
DVCC  
0
1
00  
01  
P2OUT.x  
From Module1  
10  
11  
DVSS  
DVSS  
2 bit  
P2SEL.x  
EN  
D
To module  
P2IN.x  
P2IE.x  
Bus  
Keeper  
P2 Interrupt  
D
S
Q
P2.3  
P2.4/UCA1CLK  
P2.5/UCA1RXD/UCA1SOMI  
P2.6/UCA1TXD/UCA1SIMO  
P2.7  
P2IFG.x  
P2IES.x  
Edge  
Select  
Figure 6-3. Port P2 (P2.3 to P2.7) Input/Output With Schmitt Trigger  
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Table 6-19. Port P2 (P2.3 to P2.7) Pin Functions  
CONTROL BITS AND SIGNALS(1)  
PIN NAME (P2.x)  
P2.3  
x
FUNCTION  
ANALOG  
FUNCTION  
P2DIR.x  
P2SELx  
3
4
P2.3 (I/O)  
P2.4 (I/O)  
UCA1CLK  
P2.5 (I/O)  
I: 0; O: 1  
I: 0; O: 1  
X
00  
00  
01  
00  
01  
00  
01  
0
0
0
0
0
0
0
0
0
P2.4/UCA1CLK  
I: 0; O: 1  
X
P2.5/UCA1RXD/  
UCA1SOMI  
5
UCA1RXD/UCA1SOMI  
P2.6 (I/O)  
I: 0; O: 1  
X
P2.6/UCA1TXD/  
UCA1SIMO  
6
7
UCA1TXD/'UCA1SIMO  
P2.7 (I/O)  
P2.7  
I: 0; O: 1  
(1) X = don't care  
58  
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6.11.4 Port P3 (P3.0 to P3.2) Input/Output With Schmitt Trigger  
Figure 6-4 shows the port diagram. Table 6-20 summarizes the selection of pin function.  
P3REN.x  
P3DIR.x  
00  
01  
From Module1  
10  
11  
2 bit  
DVSS  
DVCC  
0
1
00  
01  
P3OUT.x  
From Module1  
10  
11  
DVSS  
DVSS  
2 bit  
P3SEL.x  
EN  
D
To module  
P3IN.x  
Bus  
Keeper  
P3.0  
P3.1/UCA1STE  
P3.2  
Figure 6-4. Port P3 (P3.0 to P3.2) Input/Output With Schmitt Trigger  
Table 6-20. Port P3 (P3.0 to P3.2) Pin Functions  
CONTROL BITS AND SIGNALS(1)  
PIN NAME (P3.x)  
x
0
1
2
FUNCTION  
P3DIR.x  
P3SEL.x  
P3.0  
P3.0 (I/O)  
P3.1 (I/O)  
UCA1STE  
P3.2 (I/O)  
I: 0; O: 1  
I: 0; O: 1  
X
00  
00  
01  
00  
P3.1/UCA1STE  
P3.2  
I: 0; O: 1  
(1) X = don't care  
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6.12 Device Descriptors  
Table 6-21 lists the Device IDs of the devices. Table 6-22 lists the contents of the device descriptor tag-  
length-value (TLV) structure for the devices.  
Table 6-21. Device IDs  
DEVICE ID  
DEVICE  
1A05h  
1A04h  
MSP430FR2433  
82h  
40h  
Table 6-22. Device Descriptors  
MSP430FR2433  
ADDRESS  
DESCRIPTION  
VALUE  
06h  
Info length  
1A00h  
1A01h  
1A02h  
1A03h  
1A04h  
1A05h  
1A06h  
1A07h  
1A08h  
1A09h  
1A0Ah  
1A0Bh  
1A0Ch  
1A0Dh  
1A0Eh  
1A0Fh  
1A10h  
1A11h  
1A12h  
1A13h  
1A14h  
1A15h  
1A16h  
1A17h  
1A18h  
1A19h  
1A1Ah  
1A1Bh  
1A1Ch  
1A1Dh  
CRC length  
06h  
Per unit  
Per unit  
CRC value(1)  
Information Block  
Device ID  
See Table 6-21.  
Hardware revision  
Firmware revision  
Die record tag  
Per unit  
Per unit  
08h  
Die record length  
0Ah  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Per unit  
Lot wafer ID  
Die Record  
Die X position  
Die Y position  
Test result  
ADC calibration tag  
ADC calibration length  
ADC gain factor  
ADC Calibration  
ADC offset  
ADC 1.5-V reference temperature 30°C  
ADC 1.5-V reference temperature 85°C  
(1) The CRC value covers the checksum from 0x1A04h to 0x1AF5h by applying the CRC-CCITT-16 polynomial of x16 + x12 + x5 + 1.  
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Table 6-22. Device Descriptors (continued)  
MSP430FR2433  
DESCRIPTION  
ADDRESS  
1A1Eh  
1A1Fh  
1A20h  
VALUE  
12h  
Calibration tag  
Calibration length  
04h  
Per unit  
Per unit  
Per unit  
Per unit  
Reference and DCO Calibration 1.5-V reference factor  
DCO tap setting for 16 MHz, temperature 30°C(2)  
1A21h  
1A22h  
1A23h  
(2) This value can be directly loaded into DCO bits in CSCTL0 registers to get accurate 16-MHz frequency at room temperature, especially  
when the MCU exits from LPM3 and below. TI suggests using the predivider to decrease the frequency if the temperature drift might  
result an overshoot beyond 16 MHz.  
6.13 Memory  
6.13.1 Memory Organization  
Table 6-23 summarizes the memory map of the device.  
Table 6-23. Memory Organization  
ACCESS  
MSP430FR2433  
Memory (FRAM)  
Main: interrupt vectors and signatures  
Main: code memory  
15KB  
FFFFh to FF80h  
FFFFh to C400h  
Read/Write  
(Optional Write Protect)(1)  
4KB  
2FFFh to 2000h  
RAM  
Read/Write  
Read/Write  
512 bytes  
19FFh to 1800h  
Information Memory (FRAM)  
Bootstrap loader (BSL1) Memory (ROM)  
Bootstrap loader (BSL2) Memory (ROM)  
Peripherals  
(Optional Write Protect)(2)  
2KB  
17FFh to 1000h  
Read only  
Read only  
Read/Write  
1KB  
FFFFFh to FFC00h  
4KB  
0FFFh to 0000h  
(1) The Program FRAM can be write protected by setting the PFWP bit in the SYSCFG0 register. See the SYS chapter in the  
MSP430FR4xx and MSP430FR2xx Family User's Guide for more details.  
(2) The Information FRAM can be write protected by setting the DFWP bit in the SYSCFG0 register. See the SYS chapter in the  
MSP430FR4xx and MSP430FR2xx Family User's Guide for more details.  
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6.13.2 Peripheral File Map  
Table 6-24 lists the available peripherals and the register base address for each. Table 6-25 to Table 6-44  
list the registers and address offsets for each peripheral.  
Table 6-24. Peripherals Summary  
MODULE NAME  
Special Functions (See Table 6-25)  
BASE ADDRESS  
0100h  
SIZE  
0010h  
0020h  
0040h  
0020h  
0010h  
0008h  
0002h  
0020h  
0020h  
0010h  
0030h  
0030h  
0030h  
0030h  
0030h  
0020h  
0020h  
0030h  
0020h  
0040h  
PMM (See Table 6-26)  
0120h  
SYS (See Table 6-27)  
0140h  
CS (See Table 6-28)  
0180h  
FRAM (See Table 6-29)  
CRC (See Table 6-30)  
01A0h  
01C0h  
01CCh  
0200h  
WDT (See Table 6-31)  
Port P1, P2 (See Table 6-32)  
Port P3 (See Table 6-33)  
RTC (See Table 6-34)  
0220h  
0300h  
Timer0_A3 (See Table 6-35)  
Timer1_A3 (See Table 6-36)  
Timer2_A2 (See Table 6-37)  
Timer3_A2 (See Table 6-38)  
MPY32 (See Table 6-39)  
eUSCI_A0 (See Table 6-40)  
eUSCI_A1 (See Table 6-41)  
eUSCI_B0 (See Table 6-42)  
Backup Memory (See Table 6-43)  
ADC (See Table 6-44)  
0380h  
03C0h  
0400h  
0440h  
04C0h  
0500h  
0520h  
0540h  
0660h  
0700h  
Table 6-25. Special Function Registers (Base Address: 0100h)  
REGISTER DESCRIPTION  
ACRONYM  
SFRIE1  
OFFSET  
00h  
SFR interrupt enable  
SFR interrupt flag  
SFRIFG1  
SFRRPCR  
02h  
SFR reset pin control  
04h  
Table 6-26. PMM Registers (Base Address: 0120h)  
REGISTER DESCRIPTION  
ACRONYM  
PMMCTL0  
PMMCTL1  
PMMCTL2  
PMMIFG  
OFFSET  
00h  
PMM control 0  
PMM control 1  
PMM control 2  
PMM interrupt flags  
PM5 control 0  
02h  
04h  
0Ah  
PM5CTL0  
10h  
62  
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Table 6-27. SYS Registers (Base Address: 0140h)  
REGISTER DESCRIPTION  
ACRONYM  
SYSCTL  
OFFSET  
00h  
System control  
Bootloader configuration area  
JTAG mailbox control  
SYSBSLC  
SYSJMBC  
SYSJMBI0  
SYSJMBI1  
SYSJMBO0  
SYSJMBO1  
SYSBERRIV  
SYSUNIV  
SYSSNIV  
02h  
06h  
JTAG mailbox input 0  
08h  
JTAG mailbox input 1  
0Ah  
0Ch  
0Eh  
18h  
JTAG mailbox output 0  
JTAG mailbox output 1  
Bus error vector generator  
User NMI vector generator  
System NMI vector generator  
Reset vector generator  
System configuration 0  
System configuration 1  
System configuration 2  
1Ah  
1Ch  
1Eh  
20h  
SYSRSTIV  
SYSCFG0  
SYSCFG1  
SYSCFG2  
22h  
24h  
Table 6-28. CS Registers (Base Address: 0180h)  
REGISTER DESCRIPTION  
ACRONYM  
CSCTL0  
CSCTL1  
CSCTL2  
CSCTL3  
CSCTL4  
CSCTL5  
CSCTL6  
CSCTL7  
CSCTL8  
OFFSET  
00h  
CS control 0  
CS control 1  
CS control 2  
CS control 3  
CS control 4  
CS control 5  
CS control 6  
CS control 7  
CS control 8  
02h  
04h  
06h  
08h  
0Ah  
0Ch  
0Eh  
10h  
Table 6-29. FRAM Registers (Base Address: 01A0h)  
REGISTER DESCRIPTION  
ACRONYM  
FRCTL0  
OFFSET  
00h  
FRAM control 0  
General control 0  
General control 1  
GCCTL0  
GCCTL1  
04h  
06h  
Table 6-30. CRC Registers (Base Address: 01C0h)  
REGISTER DESCRIPTION  
ACRONYM  
CRC16DI  
OFFSET  
00h  
CRC data input  
CRC data input reverse byte  
CRC initialization and result  
CRC result reverse byte  
CRCDIRB  
CRCINIRES  
CRCRESR  
02h  
04h  
06h  
Table 6-31. WDT Registers (Base Address: 01CCh)  
REGISTER DESCRIPTION  
ACRONYM  
OFFSET  
Watchdog timer control  
WDTCTL  
00h  
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Table 6-32. Port P1, P2 Registers (Base Address: 0200h)  
REGISTER DESCRIPTION  
ACRONYM  
P1IN  
OFFSET  
Port P1 input  
00h  
02h  
04h  
06h  
0Ah  
0Ch  
0Eh  
16h  
18h  
1Ah  
1Ch  
01h  
03h  
05h  
07h  
0Bh  
0Dh  
1Eh  
17h  
19h  
1Bh  
1Dh  
Port P1 output  
Port P1 direction  
P1OUT  
P1DIR  
P1REN  
P1SEL0  
P1SEL1  
P1IV  
Port P1 pulling enable  
Port P1 selection 0  
Port P1 selection 1  
Port P1 interrupt vector word  
Port P1 complement selection  
Port P1 interrupt edge select  
Port P1 interrupt enable  
Port P1 interrupt flag  
Port P2 input  
P1SELC  
P1IES  
P1IE  
P1IFG  
P2IN  
Port P2 output  
P2OUT  
P2DIR  
P2REN  
P2SEL0  
P2SEL1  
P2IV  
Port P2 direction  
Port P2 pulling enable  
Port P2 selection 0  
Port P2 selection 1  
Port P2 interrupt vector word  
Port P2 complement selection  
Port P2 interrupt edge select  
Port P2 interrupt enable  
Port P2 interrupt flag  
P2SELC  
P2IES  
P2IE  
P2IFG  
Table 6-33. Port P3 Registers (Base Address: 0220h)  
REGISTER DESCRIPTION  
ACRONYM  
P3IN  
OFFSET  
00h  
02h  
04h  
06h  
0Ah  
0
Port P3 input  
Port P3 output  
P3OUT  
P3DIR  
Port P3 direction  
Port P3 pulling enable  
Port P3 selection 0  
Port P3 selection 1  
Port P3 complement selection  
P3REN  
P3SEL0  
P3SEL1  
P3SELC  
16h  
Table 6-34. RTC Registers (Base Address: 0300h)  
REGISTER DESCRIPTION  
ACRONYM  
RTCCTL  
RTCIV  
OFFSET  
00h  
RTC control  
RTC interrupt vector  
RTC modulo  
04h  
RTCMOD  
RTCCNT  
08h  
RTC counter  
0Ch  
64  
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Table 6-35. Timer0_A3 Registers (Base Address: 0380h)  
REGISTER DESCRIPTION  
ACRONYM  
TA0CTL  
OFFSET  
00h  
TA0 control  
Capture/compare control 0  
Capture/compare control 1  
Capture/compare control 2  
TA0 counter  
TA0CCTL0  
TA0CCTL1  
TA0CCTL2  
TA0R  
02h  
04h  
06h  
10h  
Capture/compare 0  
Capture/compare 1  
Capture/compare 2  
TA0 expansion 0  
TA0CCR0  
TA0CCR1  
TA0CCR2  
TA0EX0  
12h  
14h  
16h  
20h  
TA0 interrupt vector  
TA0IV  
2Eh  
Table 6-36. Timer1_A3 Registers (Base Address: 03C0h)  
REGISTER DESCRIPTION  
ACRONYM  
TA1CTL  
OFFSET  
00h  
TA1 control  
Capture/compare control 0  
Capture/compare control 1  
Capture/compare control 2  
TA1 counter  
TA1CCTL0  
TA1CCTL1  
TA1CCTL2  
TA1R  
02h  
04h  
06h  
10h  
Capture/compare 0  
Capture/compare 1  
Capture/compare 2  
TA1 expansion 0  
TA1CCR0  
TA1CCR1  
TA1CCR2  
TA1EX0  
12h  
14h  
16h  
20h  
TA1 interrupt vector  
TA1IV  
2Eh  
Table 6-37. Timer2_A2 Registers (Base Address: 0400h)  
REGISTER DESCRIPTION  
ACRONYM  
TA2CTL  
OFFSET  
00h  
TA2 control  
Capture/compare control 0  
Capture/compare control 1  
TA2 counter  
TA2CCTL0  
TA2CCTL1  
TA2R  
02h  
04h  
10h  
Capture/compare 0  
Capture/compare 1  
TA2 expansion 0  
TA2CCR0  
TA2CCR1  
TA2EX0  
12h  
14h  
20h  
TA2 interrupt vector  
TA2IV  
2Eh  
Table 6-38. Timer3_A2 Registers (Base Address: 0440h)  
REGISTER DESCRIPTION  
ACRONYM  
TA3CTL  
OFFSET  
00h  
TA3 control  
Capture/compare control 0  
Capture/compare control 1  
TA3 counter  
TA3CCTL0  
TA3CCTL1  
TA3R  
02h  
04h  
10h  
Capture/compare 0  
Capture/compare 1  
TA3 expansion 0  
TA3CCR0  
TA3CCR1  
TA3EX0  
12h  
14h  
20h  
TA3 interrupt vector  
TA3IV  
2Eh  
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Table 6-39. MPY32 Registers (Base Address: 04C0h)  
REGISTER DESCRIPTION  
16-bit operand 1 – multiply  
ACRONYM  
MPY  
OFFSET  
00h  
02h  
04h  
06h  
08h  
0Ah  
0Ch  
0Eh  
10h  
12h  
14h  
16h  
18h  
1Ah  
1Ch  
1Eh  
20h  
22h  
24h  
26h  
28h  
2Ah  
2Ch  
16-bit operand 1 – signed multiply  
16-bit operand 1 – multiply accumulate  
16-bit operand 1 – signed multiply accumulate  
16-bit operand 2  
MPYS  
MAC  
MACS  
OP2  
16 × 16 result low word  
RESLO  
RESHI  
16 × 16 result high word  
16 × 16 sum extension  
SUMEXT  
MPY32L  
MPY32H  
MPYS32L  
MPYS32H  
MAC32L  
MAC32H  
MACS32L  
MACS32H  
OP2L  
32-bit operand 1 – multiply low word  
32-bit operand 1 – multiply high word  
32-bit operand 1 – signed multiply low word  
32-bit operand 1 – signed multiply high word  
32-bit operand 1 – multiply accumulate low word  
32-bit operand 1 – multiply accumulate high word  
32-bit operand 1 – signed multiply accumulate low word  
32-bit operand 1 – signed multiply accumulate high word  
32-bit operand 2 – low word  
32-bit operand 2 – high word  
OP2H  
32 × 32 result 0 – least significant word  
32 × 32 result 1  
RES0  
RES1  
32 × 32 result 2  
RES2  
32 × 32 result 3 – most significant word  
MPY32 control 0  
RES3  
MPY32CTL0  
Table 6-40. eUSCI_A0 Registers (Base Address: 0500h)  
REGISTER DESCRIPTION  
ACRONYM  
UCA0CTLW0  
UCA0CTLW1  
UCA0BR0  
OFFSET  
00h  
eUSCI_A control word 0  
eUSCI_A control word 1  
eUSCI_A control rate 0  
eUSCI_A control rate 1  
eUSCI_A modulation control  
eUSCI_A status  
02h  
06h  
UCA0BR1  
07h  
UCA0MCTLW  
UCA0STAT  
UCA0RXBUF  
UCA0TXBUF  
UCA0ABCTL  
lUCA0IRTCTL  
IUCA0IRRCTL  
UCA0IE  
08h  
0Ah  
0Ch  
0Eh  
10h  
eUSCI_A receive buffer  
eUSCI_A transmit buffer  
eUSCI_A LIN control  
eUSCI_A IrDA transmit control  
eUSCI_A IrDA receive control  
eUSCI_A interrupt enable  
eUSCI_A interrupt flags  
eUSCI_A interrupt vector word  
12h  
13h  
1Ah  
1Ch  
1Eh  
UCA0IFG  
UCA0IV  
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Table 6-41. eUSCI_A1 Registers (Base Address: 0520h)  
REGISTER DESCRIPTION  
ACRONYM  
UCA1CTLW0  
UCA1CTLW1  
UCA1BR0  
OFFSET  
00h  
eUSCI_A control word 0  
eUSCI_A control word 1  
eUSCI_A control rate 0  
eUSCI_A control rate 1  
eUSCI_A modulation control  
eUSCI_A status  
02h  
06h  
UCA1BR1  
07h  
UCA1MCTLW  
UCA1STAT  
UCA1RXBUF  
UCA1TXBUF  
UCA1ABCTL  
lUCA1IRTCTL  
IUCA1IRRCTL  
UCA1IE  
08h  
0Ah  
0Ch  
0Eh  
10h  
eUSCI_A receive buffer  
eUSCI_A transmit buffer  
eUSCI_A LIN control  
eUSCI_A IrDA transmit control  
eUSCI_A IrDA receive control  
eUSCI_A interrupt enable  
eUSCI_A interrupt flags  
eUSCI_A interrupt vector word  
12h  
13h  
1Ah  
1Ch  
1Eh  
UCA1IFG  
UCA1IV  
Table 6-42. eUSCI_B0 Registers (Base Address: 0540h)  
REGISTER DESCRIPTION  
ACRONYM  
UCB0CTLW0  
UCB0CTLW1  
UCB0BR0  
OFFSET  
00h  
eUSCI_B control word 0  
eUSCI_B control word 1  
eUSCI_B bit rate 0  
02h  
06h  
eUSCI_B bit rate 1  
UCB0BR1  
07h  
eUSCI_B status word  
UCB0STATW  
UCB0TBCNT  
UCB0RXBUF  
UCB0TXBUF  
UCB0I2COA0  
UCB0I2COA1  
UCB0I2COA2  
UCB0I2COA3  
UCB0ADDRX  
UCB0ADDMASK  
UCB0I2CSA  
UCB0IE  
08h  
eUSCI_B byte counter threshold  
eUSCI_B receive buffer  
eUSCI_B transmit buffer  
eUSCI_B I2C own address 0  
eUSCI_B I2C own address 1  
eUSCI_B I2C own address 2  
eUSCI_B I2C own address 3  
eUSCI_B receive address  
eUSCI_B address mask  
eUSCI_B I2C slave address  
eUSCI_B interrupt enable  
eUSCI_B interrupt flags  
eUSCI_B interrupt vector word  
0Ah  
0Ch  
0Eh  
14h  
16h  
18h  
1Ah  
1Ch  
1Eh  
20h  
2Ah  
2Ch  
2Eh  
UCB0IFG  
UCB0IV  
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Table 6-43. Backup Memory Registers (Base Address: 0660h)  
REGISTER DESCRIPTION  
ACRONYM  
BAKMEM0  
BAKMEM1  
BAKMEM2  
BAKMEM3  
BAKMEM4  
BAKMEM5  
BAKMEM6  
BAKMEM7  
BAKMEM8  
BAKMEM9  
BAKMEM10  
BAKMEM11  
BAKMEM12  
BAKMEM13  
BAKMEM14  
BAKMEM15  
OFFSET  
Backup memory 0  
Backup memory 1  
Backup memory 2  
Backup memory 3  
Backup memory 4  
Backup memory 5  
Backup memory 6  
Backup memory 7  
Backup memory 8  
Backup memory 9  
Backup memory 10  
Backup memory 11  
Backup memory 12  
Backup memory 13  
Backup memory 14  
Backup memory 15  
00h  
02h  
04h  
06h  
08h  
0Ah  
0Ch  
0Eh  
10h  
12h  
14h  
16h  
18h  
1Ah  
1Ch  
1Eh  
Table 6-44. ADC Registers (Base Address: 0700h)  
REGISTER DESCRIPTION  
ACRONYM  
ADCCTL0  
ADCCTL1  
ADCCTL2  
ADCLO  
OFFSET  
00h  
ADC control 0  
ADC control 1  
02h  
ADC control 2  
04h  
ADC window comparator low threshold  
ADC window comparator high threshold  
ADC memory control 0  
ADC conversion memory  
ADC interrupt enable  
06h  
ADCHI  
08h  
ADCMCTL0  
ADCMEM0  
ADCIE  
0Ah  
12h  
1Ah  
1Ch  
1Eh  
ADC interrupt flags  
ADCIFG  
ADC interrupt vector word  
ADCIV  
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6.14 Identification  
6.14.1 Revision Identification  
The device revision information is included as part of the top-side marking on the device package. The  
device-specific errata sheet describes these markings (see 8.4).  
The hardware revision is also stored in the Device Descriptor structure in the Information Block section.  
For details on this value, see the Hardware Revision entries in Table 6-22.  
6.14.2 Device Identification  
The device type can be identified from the top-side marking on the device package. The device-specific  
errata sheet describes these markings (see 8.4).  
A device identification value is also stored in the Device Descriptor structure in the Information Block  
section. For details on this value, see the Device ID entries in Table 6-22.  
6.14.3 JTAG Identification  
Programming through the JTAG interface, including reading and identifying the JTAG ID, is described in  
MSP430 Programming With the JTAG Interface.  
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7 Applications, Implementation, and Layout  
NOTE  
Information in the following Applications section is not part of the TI component specification,  
and TI does not warrant its accuracy or completeness. TI's customers are responsible for  
determining suitability of components for their purposes. Customers should validate and test  
their design implementation to confirm system functionality.  
7.1 Device Connection and Layout Fundamentals  
This section discusses the recommended guidelines when designing with the MSP430 devices. These  
guidelines are to make sure that the device has proper connections for powering, programming,  
debugging, and optimum analog performance.  
7.1.1 Power Supply Decoupling and Bulk Capacitors  
TI recommends connecting a combination of a 10-µF and a 100-nF low-ESR ceramic decoupling capacitor  
to the DVCC and DVSS pins (see Figure 7-1). Higher-value capacitors may be used but can impact  
supply rail ramp-up time. Decoupling capacitors must be placed as close as possible to the pins that they  
decouple (within a few millimeters). Additionally, TI recommends separated grounds with a single-point  
connection for better noise isolation from digital-to-analog circuits on the board and to achieve high analog  
accuracy.  
DVCC  
Digital  
+
Power Supply  
Decoupling  
DVSS  
10 µF  
100 nF  
Figure 7-1. Power Supply Decoupling  
7.1.2 External Oscillator  
This device supports only a low-frequency crystal (32 kHz) on the XIN and XOUT pins. External bypass  
capacitors for the crystal oscillator pins are required.  
It is also possible to apply digital clock signals to the XIN input pin that meet the specifications of the  
respective oscillator if the appropriate XT1BYPASS mode is selected. In this case, the associated XOUT  
pin can be used for other purposes. If the XIN and XOUT pins are not used, they must be terminated  
according to Section 4.6.  
Figure 7-2 shows a typical connection diagram.  
XIN  
XOUT  
CL1  
CL2  
Figure 7-2. Typical Crystal Connection  
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See MSP430 32-kHz Crystal Oscillators for more information on selecting, testing, and designing a crystal  
oscillator with the MSP430 devices.  
7.1.3 JTAG  
With the proper connections, the debugger and a hardware JTAG interface (such as the MSP-FET or  
MSP-FET430UIF) can be used to program and debug code on the target board. In addition, the  
connections also support the MSP-GANG production programmers, thus providing an easy way to  
program prototype boards, if desired. Figure 7-3 shows the connections between the 14-pin JTAG  
connector and the target device required to support in-system programming and debugging for 4-wire  
JTAG communication. Figure 7-4 shows the connections for 2-wire JTAG mode (Spy-Bi-Wire).  
The connections for the MSP-FET and MSP-FET430UIF interface modules and the MSP-GANG are  
identical. Both can supply VCC to the target board (through pin 2). In addition, the MSP-FET and MSP-  
FET430UIF interface modules and MSP-GANG have a VCC sense feature that, if used, requires an  
alternate connection (pin 4 instead of pin 2). The VCC sense feature detects the local VCC present on the  
target board (that is, a battery or other local power supply) and adjusts the output signals accordingly.  
Figure 7-3 and Figure 7-4 show a jumper block that supports both scenarios of supplying VCC to the target  
board. If this flexibility is not required, the desired VCC connections may be hard-wired to eliminate the  
jumper block. Pins 2 and 4 must not be connected at the same time.  
For additional design information regarding the JTAG interface, see the MSP430 Hardware Tools User's  
Guide.  
VCC  
Important to connect  
MSP430FRxxx  
J1 (see Note A)  
DVCC  
J2 (see Note A)  
R1  
47 kW  
JTAG  
RST/NMI/SBWTDIO  
VCC TOOL  
TDO/TDI  
TDI  
TDO/TDI  
TDI  
2
1
VCC TARGET  
4
3
TMS  
TMS  
6
5
7
TEST  
TCK  
8
TCK  
GND  
RST  
10  
12  
14  
9
11  
13  
TEST/SBWTCK  
DVSS  
C1  
1 nF  
(see Note B)  
A. If a local target power supply is used, make connection J1. If power from the debug or programming adapter is used,  
make connection J2.  
B. The upper limit for C1 is 1.1 nF when using current TI tools.  
Figure 7-3. Signal Connections for 4-Wire JTAG Communication  
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VCC  
Important to connect  
MSP430FRxxx  
J1 (see Note A)  
J2 (see Note A)  
DVCC  
R1  
47 kΩ  
(see Note B)  
JTAG  
VCC TOOL  
TDO/TDI  
2
1
3
5
7
9
RST/NMI/SBWTDIO  
VCC TARGET  
4
6
TCK  
8
GND  
10  
12  
14  
11  
13  
TEST/SBWTCK  
DVSS  
C1  
1 nF  
(see Note B)  
A. Make connection J1 if a local target power supply is used, or make connection J2 if the target is powered from the  
debug or programming adapter.  
B. The device RST/NMI/SBWTDIO pin is used in 2-wire mode for bidirectional communication with the device during  
JTAG access, and any capacitance that is attached to this signal may affect the ability to establish a connection with  
the device. The upper limit for C1 is 1.1 nF when using current TI tools.  
Figure 7-4. Signal Connections for 2-Wire JTAG Communication (Spy-Bi-Wire)  
7.1.4 Reset  
The reset pin can be configured as a reset function (default) or as an NMI function in the Special Function  
Register (SFR), SFRRPCR.  
In reset mode, the RST/NMI pin is active low, and a pulse applied to this pin that meets the reset timing  
specifications generates a BOR-type device reset.  
Setting SYSNMI causes the RST/NMI pin to be configured as an external NMI source. The external NMI is  
edge sensitive, and its edge is selectable by SYSNMIIES. Setting the NMIIE enables the interrupt of the  
external NMI. When an external NMI event occurs, the NMIIFG is set.  
The RST/NMI pin can have either a pullup or pulldown that is enabled or not. SYSRSTUP selects either  
pullup or pulldown, and SYSRSTRE causes the pullup (default) or pulldown to be enabled (default) or not.  
If the RST/NMI pin is unused, it is required either to select and enable the internal pullup or to connect an  
external 47-kΩ pullup resistor to the RST/NMI pin with a 1.1-nF pulldown capacitor. The pulldown  
capacitor should not exceed 1.1 nF when using devices with Spy-Bi-Wire interface in Spy-Bi-Wire mode or  
in 4-wire JTAG mode with TI tools like FET interfaces or GANG programmers.  
See the MSP430FR4xx and MSP430FR2xx Family User's Guide for more information on the referenced  
control registers and bits.  
7.1.5 Unused Pins  
For details on the connection of unused pins, see Section 4.6.  
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7.1.6 General Layout Recommendations  
Proper grounding and short traces for external crystal to reduce parasitic capacitance. For  
recommended layout guidelines, see MSP430 32-kHz Crystal Oscillators.  
Proper bypass capacitors on DVCC and reference pins, if used.  
Avoid routing any high-frequency signal close to an analog signal line. For example, keep digital  
switching signals such as PWM or JTAG signals away from the oscillator circuit and ADC signals.  
Proper ESD level protection should be considered to protect the device from unintended high-voltage  
electrostatic discharge. For guidelines see MSP430 System-Level ESD Considerations.  
7.1.7 Do's and Don'ts  
During power up, power down, and device operation, DVCC must not exceed the limits specified in  
Section 5.1. Exceeding the specified limits may cause malfunction of the device including erroneous writes  
to RAM and FRAM.  
7.2 Peripheral- and Interface-Specific Design Information  
7.2.1 ADC Peripheral  
7.2.1.1 Partial Schematic  
Figure 7-5 shows the recommended decoupling circuit when an external voltage reference is used.  
DVSS  
Using an external  
VREF+/VEREF+  
positive reference  
+
100 nF  
10 µF  
Using an external  
negative reference  
VEREF-  
+
10 µF  
100 nF  
Figure 7-5. ADC Grounding and Noise Considerations  
7.2.1.2 Design Requirements  
As with any high-resolution ADC, appropriate PCB layout and grounding techniques must be followed to  
eliminate ground loops, unwanted parasitic effects, and noise.  
Ground loops are formed when return current from the ADC flows through paths that are common with  
other analog or digital circuitry. If care is not taken, this current can generate small unwanted offset  
voltages that can add to or subtract from the reference or input voltages of the ADC. The general  
guidelines in Section 7.1.1 combined with the connections shown in Figure 7-5 prevent this.  
Quickly switching digital signals and noisy power supply lines can corrupt the conversion results, so keep  
the ADC input trace shielded from those digital and power supply lines. Putting the MCU in low-power  
mode during the ADC conversion improves the ADC performance in a noisy environment. If the device  
includes the analog power pair inputs (AVCC and AVSS), TI recommends a noise-free design using  
separate analog and digital ground planes with a single-point connection to achieve high accuracy.  
Figure 7-5 shows the recommended decoupling circuit when an external voltage reference is used. The  
internal reference module has a maximum drive current as described in the sections ADC Pin Enable and  
1.2-V Reference Settings of the MSP430FR4xx and MSP430FR2xx Family User's Guide.  
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The reference voltage must be a stable voltage for accurate measurements. The capacitor values that are  
selected in the general guidelines filter out the high- and low-frequency ripple before the reference voltage  
enters the device. In this case, the 10-µF capacitor buffers the reference pin and filters any low-frequency  
ripple. A bypass capacitor of 100 nF filters out any high-frequency noise.  
7.2.1.3 Layout Guidelines  
Components that are shown in the partial schematic (see Figure 7-5) should be placed as close as  
possible to the respective device pins to avoid long traces, because they add additional parasitic  
capacitance, inductance, and resistance on the signal.  
Avoid routing analog input signals close to a high-frequency pin (for example, a high-frequency PWM),  
because the high-frequency switching can be coupled into the analog signal.  
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8 器件和文档支持  
8.1 入门和后续步骤  
更过有关 MSP 低功耗微控制器以及开发协助工具和库的信息,请访问MSP430™ 超低功耗传感和测量  
MCU 概述》。  
8.2 器件命名规则  
为了标示产品开发周期所处的阶段,TI 为所有 MSP MCU 器件的部件号分配了前缀。每个 MSP MCU 商用  
系列产品成员都具有以下两个前缀之一:MSP XMS。这些前缀代表了产品开发的发展阶段,即从工程原  
(XMS) 直到完全合格的生产器件 (MSP)。  
XMS - 实验器件,不一定代表最终器件的电气规格  
MSP - 完全合格的生产器件  
XMS 器件在供货时附带如下免责声明:  
开发中的产品用于内部评估用途。”  
MSP 器件的特性已经全部明确,并且器件的质量和可靠性已经完全论证。TI 的标准保修证书对该器件适  
用。  
预测显示原型器件 (XMS) 的故障率大于标准生产器件。由于这些器件的预计最终使用故障率尚不确定,德  
州仪器 (TI) 建议不要将它们用于任何生产系统。请仅使用合格的生产器件。  
TI 器件的命名规则还包括一个带有器件系列名称的后缀。此后缀表示温度范围、封装类型和配送形式。8-  
1 提供了解读完整器件名称的图例。  
MSP 430 FR 2 433 I RGE R  
Distribution Format  
Packaging  
Temperature Range  
Feature Set  
Processor Family  
MCU Platform  
Memory Type  
Series  
Processor Family  
MSP = Mixed-Signal Processor  
XMS = Experimental Silicon  
MCU Platform  
430 = MSP430 16-bit low-power platform  
Memory Type  
Series  
FR = FRAM  
2 = Up to 16 MHz without LCD  
Feature Set  
First and Second Digits:  
Third Digit:  
ADC Channels / eUSCIs / 16-bit Timers / I/Os FRAM (KB) / SRAM (KB)  
43 = Up to 8 / 3 / 4 / Up to 19  
3 = 16 / 4  
Temperature Range  
Packaging  
I = –40°C to 85°C  
www.ti.com/packaging  
Distribution Format  
T = Small reel  
R = Large reel  
No Marking = Tube or tray  
8-1. 器件命名规则  
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8.3 工具和软件  
所有 MSP 微控制器均受多种软件和硬件开发工具的支持。相关工具由 TI 以及多家第三方供应商提供。可从  
低功耗 MCU 开发套件和软件获取全部信息。  
8-1 列 调试 的调试功能。请参阅《适用于 MSP430 MCU Code Composer Studio IDE 用户指南》,  
以了解有关可用 功能)的详细信息。  
8-1. 硬件调试 特性  
四线制  
JTAG  
两线制  
JTAG  
断点  
(N)  
LPMx.5 调试支  
MSP430 架构  
范围断点  
时钟控制  
状态序列发生器  
跟踪缓冲器  
EEM 版本  
MSP430Xv2  
3
S
设计套件与评估模块  
MSP-FET MSP-TS430RGE24A 评估模块捆绑包  
MSP-FET 是一款强大的闪存仿真工具,可在 MSP430 微处理器上快速开始应用开发。MSP-FET 包含 USB  
接口,用于通过 JTAG 接口或节省引脚的 Spy-Bi-Wire2 线 JTAG)协议对系统内的 MSP430 进行编程和  
调试。附带的 MSP-FET 开发工具支持使用所有 MSP430 器件进行开发。  
软件  
MSP430Ware 软件  
MSP430Ware 是一套设计资源集,可帮助用户高效地创建和构建 MSP430 代码。MSP430Ware 包括各种  
高度抽象的软件库,范围涵盖 MSP 驱动程序库或 USB 等特定于器件和外设的库,以及图形库和电容式触  
控库等特定于应用的库。MSP430 驱动程序库是一个尤为重要的库,可以帮助软件开发人员利用便捷的 API  
来控制错综复杂的低级别硬件外设,从而使生成的代码更易于读取和维护。  
MSP430FR243xMSP430FR253xMSP430FR263x 代码示例  
根据不同应用需求配置各集成外设的每个 MSP 器件均具备相应的 C 代码示例。  
MSP 驱动程序库  
MSP 驱动程序库的抽象 API 提供易用的函数调用,无需直接操纵 MSP430 硬件的位与字节。完整的文档通  
过具有帮助意义的 API 指南交付,其中包括有关每个函数调用和经过验证的参数的详细信息。开发人员可以  
使用驱动程序库功能,以最低开销编写完整项目。  
MSP EnergyTrace™ 技术  
适用于 MSP430 微控制器的 EnergyTrace 技术是基于电能的代码分析工具,适用于测量和显示应用的电能  
系统配置并帮助优化应用以实现超低功耗。  
ULP(超低功耗)Advisor  
ULP Advisor™软件是一款辅助工具,旨在指导开发人员编写更为高效的代码,从而充分利用 MSP430 和  
MSP432 微控制器 独特 功能。ULP Advisor 的目标人群是微控制器的资深开发者和开发新手,可以根据详  
尽的 ULP 检验表检查代码,以便最大限度地减少应用程序的能耗。在编译时,ULP Advisor 会提供通知和  
备注以突出显示代码中可以进一步优化的区域,进而实现更低功耗。  
76  
器件和文档支持  
版权 © 2015–2019, Texas Instruments Incorporated  
提交文档反馈意见  
产品主页链接: MSP430FR2433  
 
MSP430FR2433  
www.ti.com.cn  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
IEC60730 软件包  
IEC60730 MSP430 软件包经过专门开发,用于协助客户达到 IEC 60730-1:2010(家用及类似用途的自动化  
电气控制 - 1 部分:一般要求)B 类产品的要求。其中涵盖家用电器、电弧检测器、电源转换器、电动工  
具、电动自行车及其他诸多产品。IEC60730 MSP430 软件包可以嵌入在 MSP430 MCU 中 运行的客户应  
用, 从而帮助客户简化其消费类器件在功能安全方面遵循 IEC 60730-1:2010 B 类规范的认证工作。  
适用于 MSP 的定点数学库  
MSP IQmath Qmath 库是为 C 语言编程器提供的经过高度优化的高精度数学运算函数集合,能够将浮点  
算法无缝嵌入 MSP430 MSP432 器件的定点代码中。这些例程通常用于计算密集型实时 应用, 而优化  
的执行速度、高精度以及超低能耗通常是影响这些实时应用的关键因素。与使用浮点数学算法编写的同等代  
码相比,使用 IQmath Qmath 库可以大幅提高执行速度并显著降低能耗。  
适用于 MSP430 的浮点数学库  
TI 在低功耗和低成本微控制器领域锐意创新,为您提供 MSPMATHLIB。此标量函数的浮点数学库,能够充  
分利用器件的智能外设,使速度最高达到标准 MSP430 数学函数的 26 倍。Mathlib 能够轻松集成到您的设  
计中。该运算库免费使用并集成在 Code Composer Studio IDE IAR Embedded Workbench IDE 中。  
开发工具  
适用于 MSP 微控制器的 Code Composer Studio™ 集成开发环境  
Code Composer Studio (CCS) 集成开发环境 (IDE) 支持所有 MSP 微控制器器件。CCS 包含一整套用于开  
发和调试嵌入式 应用的工具。它包含了优化的 C/C++ 编译器、源代码编辑器、项目构建环境、调试器、描  
述器以及其他多种 功能。  
命令行编程器  
MSP Flasher 是一款基于 shell 的开源接口,可使用 JTAG Spy-Bi-Wire (SBW) 通信通过 FET 编程器或  
eZ430 MSP 微控制器进行编程。MSP Flasher 可用于将二进制文件(.txt .hex 文件)直接下载到  
MSP 微控制器,而无需使用 IDE。  
MSP MCU 编程器和调试器  
MSP-FET 是一款强大的仿真开发工具(通常称为调试探针),可让用户在 MSP 低功耗微控制器 (MCU) 上  
快速进行应用开发。创建 MCU 软件通常需要将生成的二进制程序下载到 MSP 器件,以进行验证和调试。  
MSP-FET 在主机和目标 MSP 间提供调试通信通道。此外,MSP-FET 还在计算机的 USB 接口和 MSP  
UART 之间提供反向通道 UART 连接。这为 MSP 编程器提供了一种便捷方法,实现了 MSP 和在计算机上  
运行的终端之间的串行通信。  
MSP-GANG 生产编程器  
MSP Gang 编程器可同时对多达八个完全相同的 MSP430 MSP432 闪存或 FRAM 器件进行编程。MSP  
Gang 编程器可使用标准的 RS-232 USB 连接与主机 PC 相连并提供灵活的编程选项,允许用户完全自定  
义流程。MSP Gang 编程器配有扩展板“Gang 分离器,可在 MSP Gang 编程器和多个目标器件间实现互  
连。  
版权 © 2015–2019, Texas Instruments Incorporated  
器件和文档支持  
77  
提交文档反馈意见  
产品主页链接: MSP430FR2433  
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
8.4 文档支持  
以下文档对 MSP430FR2433 MCU 进行了介绍。www.ti.com.cn 网站上提供了这些文档的副本。  
接收文档更新通知  
如需接收文档更新通知(包括器件勘误表),请转至 ti.com.cn(例如 MSP430FR2433)。单击右上角的提  
醒我”(Alert me) 按钮。点击注册后,即可收到产品信息更改每周摘要(如有)。有关更改的详细信息,请查  
阅已修订文档的修订历史记录。  
勘误  
MSP430FR2433 器件勘误表》  
说明了功能规格的已知例外情况。  
用户指南  
MSP430FR4xx MSP430FR2xx 系列用户指南》  
详细介绍了该器件系列提供的模块和外设。  
MSP430 FRAM 器件引导加载程序 (BSL) 用户指南》  
MSP430 MCU 项目开发和更新阶段,引导加载程序 (BSL) 提供存储器的编程方法。该程序可由使用串行  
协议发送命令的工具激活。BSL 支持用户控制 MSP430 MCU 的活动,可与个人计算机或其他设备进行数据  
交换。  
MSP430 硬件工具用户指南》  
此手册介绍了 TI MSP-FET430 闪存仿真工具 (FET) 的硬件。FET 是针对 MSP430 超低功耗微控制器的程  
序开发工具。  
应用报告  
MSP430 FRAM 技术 操作方法和最佳实践  
FRAM 采用非易失性存储器技术,行为与 SRAM 类似,支持大量新 应用,还改变了固件的设计方式。该应  
用程序报告从嵌入式软件开发方面概述了 FRAM 技术在 MSP430 中的使用方法和最佳实践。其中介绍了如  
何按照应用程序特定的代码、常量、数据空间要求实施存储器布局以及如何使用 FRAM 优化应用程序的能  
耗。  
MSP430FR4xx MSP430FR2xx 系列的 VLO 校准  
MSP430FR4xx MSP430FR2xx (FR4xx/FR2xx) 系列微控制器 (MCU) 提供了各种时钟源,包括一些高  
速、高精度时钟以及一些低功耗、低系统成本时钟。用户可以选择以最佳方式权衡了性能、功耗和系统成本  
的时钟。片上超低频振荡器 (VLO) FR4xx/FR2xx 系列 MCU 中包含的频率为 10kHz(典型值)的时钟  
源。VLO 具有超低的功耗, 因而 广泛适用于各种应用。  
78  
器件和文档支持  
版权 © 2015–2019, Texas Instruments Incorporated  
提交文档反馈意见  
产品主页链接: MSP430FR2433  
MSP430FR2433  
www.ti.com.cn  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
MSP430 32kHz 晶体振荡器》  
选择合适的晶体、正确的负载电路和适当的电路板布局是实现稳定的晶体振荡器的关键。该应用报告总结了  
晶体振荡器的功能,介绍了用于选择合适的晶体以实现 MSP430 超低功耗运行的参数。此外,还给出了正  
确电路板布局的提示和示例。此外,为了确保振荡器在大规模生产后能够稳定运行,还可能需要进行一些振  
荡器测试,该文档中提供了有关这些测试的详细信息。  
MSP430 系统级 ESD 注意事项》  
随着芯片技术向更低电压方向发展以及设计具有成本效益的超低功耗组件的需求的出现,系统级 ESD 要求  
变得越来越苛刻。该应用报告介绍了不同的 ESD 主题,旨在帮助电路板设计人员和 OEM 理解并设计出稳  
健耐用的系统级设计。  
8.5 社区资源  
下列链接提供到 TI 社区资源的连接。链接的内容由各个分销商按照原样提供。这些内容并不构成 TI 技术  
规范,并且不一定反映 TI 的观点;请参见 TI 《使用条款》。  
TI E2E™ 社区  
TI 的工程师交流 (E2E) 社区. 此社区的创建目的是为了促进工程师之间协作。在 e2e.ti.com 中,您可以提  
问、共享知识、拓展思路,在同领域工程师的帮助下解决问题。  
TI 嵌入式处理器维基网页  
德州仪器 (TI) 嵌入式处理器维基网页。此网站的建立是为了帮助开发人员熟悉德州仪器 (TI) 的嵌入式处理  
器,并且也为了促进与这些器件相关的硬件和软件的总体知识的创新和增长。  
8.6 商标  
LaunchPad, MSP430, MSP430Ware, Code Composer Studio, E2E, EnergyTrace, ULP Advisor, 适用于  
MSP 微控制器的 Code Composer Studio are trademarks of Texas Instruments.  
All other trademarks are the property of their respective owners.  
8.7 静电放电警告  
ESD 可能会损坏该集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理措施和安装程序 , 可  
能会损坏集成电路。  
ESD 的损坏小至导致微小的性能降级 , 大至整个器件故障。 精密的集成电路可能更容易受到损坏 , 这是因为非常细微的参数更改都可  
能会导致器件与其发布的规格不相符。  
8.8 Export Control Notice  
Recipient agrees to not knowingly export or re-export, directly or indirectly, any product or technical data  
(as defined by the U.S., EU, and other Export Administration Regulations) including software, or any  
controlled product restricted by other applicable national regulations, received from disclosing party under  
nondisclosure obligations (if any), or any direct product of such technology, to any destination to which  
such export or re-export is restricted or prohibited by U.S. or other applicable laws, without obtaining prior  
authorization from U.S. Department of Commerce and other competent Government authorities to the  
extent required by those laws.  
8.9 Glossary  
TI Glossary This glossary lists and explains terms, acronyms, and definitions.  
版权 © 2015–2019, Texas Instruments Incorporated  
器件和文档支持  
79  
提交文档反馈意见  
产品主页链接: MSP430FR2433  
MSP430FR2433  
ZHCSEA0F OCTOBER 2015REVISED DECEMBER 2019  
www.ti.com.cn  
9 机械、封装和可订购信息  
以下页面包含机械、封装和可订购信息。这些信息是指定器件的最新可用数据。这些数据会在无通知且不对  
本文档进行修订的情况下发生改变。欲获得该数据表的浏览器版本,请查阅左侧的导航栏。  
80  
机械、封装和可订购信息  
版权 © 2015–2019, Texas Instruments Incorporated  
提交文档反馈意见  
产品主页链接: MSP430FR2433  
PACKAGE OPTION ADDENDUM  
www.ti.com  
10-Dec-2020  
PACKAGING INFORMATION  
Orderable Device  
Status Package Type Package Pins Package  
Eco Plan  
Lead finish/  
Ball material  
MSL Peak Temp  
Op Temp (°C)  
Device Marking  
Samples  
Drawing  
Qty  
(1)  
(2)  
(3)  
(4/5)  
(6)  
MSP430FR2433IRGER  
MSP430FR2433IRGET  
MSP430FR2433IYQWR  
MSP430FR2433IYQWT  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
VQFN  
VQFN  
RGE  
RGE  
YQW  
YQW  
24  
24  
24  
24  
3000 RoHS & Green  
250 RoHS & Green  
3000 RoHS & Green  
250 RoHS & Green  
NIPDAU  
Level-2-260C-1 YEAR  
Level-2-260C-1 YEAR  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
FR2433  
NIPDAU  
SNAGCU  
SNAGCU  
FR2433  
DSBGA  
DSBGA  
430FR2433  
430FR2433  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance  
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may  
reference these types of products as "Pb-Free".  
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.  
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based  
flame retardants must also meet the <=1000ppm threshold requirement.  
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.  
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation  
of the previous line and the two combined represent the entire Device Marking for that device.  
(6)  
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two  
lines if the finish value exceeds the maximum column width.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
10-Dec-2020  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
Addendum-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
7-Jul-2023  
TAPE AND REEL INFORMATION  
REEL DIMENSIONS  
TAPE DIMENSIONS  
K0  
P1  
W
B0  
Reel  
Diameter  
Cavity  
A0  
A0 Dimension designed to accommodate the component width  
B0 Dimension designed to accommodate the component length  
K0 Dimension designed to accommodate the component thickness  
Overall width of the carrier tape  
W
P1 Pitch between successive cavity centers  
Reel Width (W1)  
QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE  
Sprocket Holes  
Q1 Q2  
Q3 Q4  
Q1 Q2  
Q3 Q4  
User Direction of Feed  
Pocket Quadrants  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
MSP430FR2433IRGER  
MSP430FR2433IRGET  
VQFN  
VQFN  
RGE  
RGE  
YQW  
YQW  
24  
24  
24  
24  
3000  
250  
330.0  
180.0  
180.0  
180.0  
12.4  
12.4  
8.4  
4.25  
4.25  
2.38  
2.38  
4.25  
4.25  
2.4  
1.15  
1.15  
0.8  
8.0  
8.0  
4.0  
4.0  
12.0  
12.0  
8.0  
Q2  
Q2  
Q1  
Q1  
MSP430FR2433IYQWR DSBGA  
MSP430FR2433IYQWT DSBGA  
3000  
250  
8.4  
2.4  
0.8  
8.0  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
7-Jul-2023  
TAPE AND REEL BOX DIMENSIONS  
Width (mm)  
H
W
L
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
MSP430FR2433IRGER  
MSP430FR2433IRGET  
MSP430FR2433IYQWR  
MSP430FR2433IYQWT  
VQFN  
VQFN  
RGE  
RGE  
YQW  
YQW  
24  
24  
24  
24  
3000  
250  
367.0  
210.0  
182.0  
182.0  
367.0  
185.0  
182.0  
182.0  
35.0  
35.0  
20.0  
20.0  
DSBGA  
DSBGA  
3000  
250  
Pack Materials-Page 2  
PACKAGE OUTLINE  
YQW0024  
DSBGA - 0.625 mm max height  
SCALE 6.000  
DIE SIZE BALL GRID ARRAY  
A
B
E
BALL A1  
CORNER  
D
0.625 MAX  
C
SEATING PLANE  
0.05 C  
BALL TYP  
0.30  
0.12  
1.6  
TYP  
SYMM  
E
D
C
1.6  
TYP  
SYMM  
0.4  
D: Max = 2.37 mm, Min = 2.31 mm  
E: Max = 2.32 mm, Min = 2.26 mm  
TYP  
B
A
1
2
3
4
5
0.3  
24X  
C A  
0.2  
B
0.4 TYP  
0.015  
4221561/A 02/2016  
NOTES:  
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing  
per ASME Y14.5M.  
2. This drawing is subject to change without notice.  
www.ti.com  
EXAMPLE BOARD LAYOUT  
YQW0024  
DSBGA - 0.625 mm max height  
DIE SIZE BALL GRID ARRAY  
(0.4) TYP  
3
24X ( 0.25)  
1
2
4
5
A
(0.4) TYP  
B
C
SYMM  
D
E
SYMM  
LAND PATTERN EXAMPLE  
SCALE:30X  
(
0.25)  
0.05 MAX  
0.05 MIN  
METAL UNDER  
SOLDER MASK  
METAL  
(
0.25)  
SOLDER MASK  
OPENING  
SOLDER MASK  
OPENING  
NON-SOLDER MASK  
DEFINED  
SOLDER MASK  
DEFINED  
(PREFERRED)  
SOLDER MASK DETAILS  
NOT TO SCALE  
4221561/A 02/2016  
NOTES: (continued)  
3. Final dimensions may vary due to manufacturing tolerance considerations and also routing constraints.  
See Texas Instruments Literature No. SNVA009 (www.ti.com/lit/snva009).  
www.ti.com  
EXAMPLE STENCIL DESIGN  
YQW0024  
DSBGA - 0.625 mm max height  
DIE SIZE BALL GRID ARRAY  
(0.4) TYP  
(R0.05) TYP  
24X ( 0.25)  
(0.4) TYP  
1
2
3
4
5
A
B
SYMM  
C
D
E
METAL  
TYP  
SYMM  
SOLDER PASTE EXAMPLE  
BASED ON 0.1 mm THICK STENCIL  
SCALE:30X  
4221561/A 02/2016  
NOTES: (continued)  
4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release.  
www.ti.com  
GENERIC PACKAGE VIEW  
RGE 24  
VQFN - 1 mm max height  
PLASTIC QUAD FLATPACK - NO LEAD  
Images above are just a representation of the package family, actual package may vary.  
Refer to the product data sheet for package details.  
4204104/H  
PACKAGE OUTLINE  
VQFN - 1 mm max height  
RGE0024H  
PLASTIC QUAD FLATPACK- NO LEAD  
A
4.1  
3.9  
B
4.1  
3.9  
PIN 1 INDEX AREA  
1 MAX  
C
SEATING PLANE  
0.08 C  
0.05  
0.00  
ꢀꢀꢀꢀꢁꢂꢃ“ꢄꢂꢅ  
(0.2) TYP  
2X 2.5  
12  
7
20X 0.5  
6
13  
25  
2X  
SYMM  
2.5  
1
18  
0.30  
PIN 1 ID  
(OPTIONAL)  
24X  
0.18  
24  
19  
0.1  
0.05  
C A B  
C
SYMM  
0.48  
0.28  
24X  
4219016 / A 08/2017  
NOTES:  
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing  
per ASME Y14.5M.  
2. This drawing is subject to change without notice.  
3. The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance.  
www.ti.com  
EXAMPLE BOARD LAYOUT  
VQFN - 1 mm max height  
RGE0024H  
PLASTIC QUAD FLATPACK- NO LEAD  
(3.825)  
2.7)  
(
24  
19  
24X (0.58)  
24X (0.24)  
1
18  
20X (0.5)  
25  
SYMM  
(3.825)  
2X  
(1.1)  
ꢆ‘ꢄꢂꢁꢇꢀ9,$  
TYP  
6
13  
(R0.05)  
7
12  
2X(1.1)  
SYMM  
LAND PATTERN EXAMPLE  
SCALE: 20X  
0.07 MIN  
ALL AROUND  
0.07 MAX  
ALL AROUND  
METAL  
SOLDER MASK  
OPENING  
SOLDER MASK  
OPENING  
METAL UNDER  
SOLDER MASK  
NON SOLDER MASK  
DEFINED  
SOLDER MASK  
DEFINED  
(PREFERRED)  
SOLDER MASK DETAILS  
4219016 / A 08/2017  
NOTES: (continued)  
4. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments  
literature number SLUA271 (www.ti.com/lit/slua271).  
5. Solder mask tolerances between and around signal pads can vary based on board fabrication site.  
www.ti.com  
EXAMPLE STENCIL DESIGN  
VQFN - 1 mm max height  
RGE0024H  
PLASTIC QUAD FLATPACK- NO LEAD  
(3.825)  
4X ( 1.188)  
24  
19  
24X (0.58)  
24X (0.24)  
1
18  
20X (0.5)  
SYMM  
(3.825)  
(0.694)  
TYP  
6
13  
25  
(R0.05) TYP  
METAL  
TYP  
7
12  
(0.694)  
TYP  
SYMM  
SOLDER PASTE EXAMPLE  
BASED ON 0.125 mm THICK STENCIL  
EXPOSED PAD  
78% PRINTED COVERAGE BY AREA  
SCALE: 20X  
4219016 / A 08/2017  
NOTES: (continued)  
6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate  
design recommendations..  
www.ti.com  
重要声明和免责声明  
TI“按原样提供技术和可靠性数据(包括数据表)、设计资源(包括参考设计)、应用或其他设计建议、网络工具、安全信息和其他资源,  
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这些资源可供使用 TI 产品进行设计的熟练开发人员使用。您将自行承担以下全部责任:(1) 针对您的应用选择合适的 TI 产品,(2) 设计、验  
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