TUSB320LAIRWBR [TI]
Type-C 配置通道逻辑和端口控制 | RWB | 12 | -40 to 85;型号: | TUSB320LAIRWBR |
厂家: | TEXAS INSTRUMENTS |
描述: | Type-C 配置通道逻辑和端口控制 | RWB | 12 | -40 to 85 PC 接口集成电路 |
文件: | 总38页 (文件大小:1562K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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TUSB320LAI, TUSB320HAI
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
TUSB320LAI/TUSB320HAI USB Type-C 配置通道逻辑和端口控制
1 特性
3 说明
1
•
USB Type-C™规范 1.1
向后兼容 USB Type-C 规范 1.0
支持高达 3A 的电流通告和检测
模式配置
除非另外注明,否则 TUSB320LA 和 TUSB320HA 器
件(以下简称为 TUSB320)为德州仪器 (TI) 的第三代
Type-C 配置通道逻辑和端口控制器。TUSB320 器件
使用 CC 引脚来确定端口的连接状态和电缆方向,以
及进行角色检测和 Type-C 电流模式控制。TUSB320
器件可配置为下行端口 (DFP)、上行端口 (UFP) 或双
角色端口 (DRP),因此成为各种应用的理想选择。
•
•
•
–
–
–
–
仅主机 - 下行端口 (DFP)(供电设备)
仅设备 – 上行端口 (UFP)(受电设备)
双角色端口 – DRP
支持 Try.SRC 和 Try.SNK
根据 Type-C 规范,TUSB320 器件会交替配置为 DFP
或 UFP。CC 逻辑块通过监视 CC1 和 CC2 引脚上的
上拉或下拉电阻,以确定何时连接了 USB 端口、电缆
的方向以及检测到的角色。CC 逻辑根据检测到的角色
来确定 Type-C 电流模式为默认、中等还是高。该逻辑
通过实施 VBUS 检测来确定端口在 UFP 和 DRP 模式
下是否连接成功。
•
通道配置 (CC)
–
–
–
–
V
USB 端口连接检测
电缆方向检测
角色检测
Type-C 电流模式(默认、中等和高)
BUS 检测
I2C 或 GPIO 控制
•
•
•
•
•
•
•
该系列器件能够在宽电源范围内工作,并且具有较低功
耗。TUSB320 提供两种使能版本:低电平有效使能,
称为 TUSB320LA;高电平有效使能,称为
TUSB320HA。TUSB320 系列器件适用于工业级温度
范围。
支持频率高达 400kHz 的 I2C
通过 I2C 实现角色配置控制
电源电压:2.7V 至 5V
低电流消耗
工业温度范围:–40°C 至 85°C
器件信息(1)
2 应用
器件型号
TUSB320LAI
TUSB320HAI
封装
X2QFN (12)
X2QFN (12)
封装尺寸(标称值)
1.60mm x 1.60mm
1.60mm x 1.60mm
•
•
•
•
主机、设备、双角色端口 应用
移动电话
平板电脑和笔记本电脑
USB 外设
(1) 如需了解所有可用封装,请参阅产品说明书末尾的可订购产品
附录。
简化电路原理图
示例 应用
VBUS
Detection
VBUS
CC Logic
For Mode
Configuration and
Detection
CC1
CC2
I2C
GPIO
Controller
GPIOs
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
English Data Sheet: SLLSEQ8
TUSB320LAI, TUSB320HAI
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
www.ti.com.cn
目录
7.5 Register Maps......................................................... 16
Application and Implementation ........................ 21
8.1 Application Information............................................ 21
8.2 Typical Application .................................................. 21
8.3 Initialization Setup .................................................. 28
Power Supply Recommendations...................... 28
1
2
3
4
5
6
特性.......................................................................... 1
应用.......................................................................... 1
说明.......................................................................... 1
修订历史记录 ........................................................... 2
Pin Configuration and Functions......................... 3
Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information.................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements................................................ 6
6.7 Switching Characteristics.......................................... 6
Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Feature Description................................................... 9
7.3 Device Functional Modes........................................ 13
7.4 Programming........................................................... 15
8
9
10 Layout................................................................... 29
10.1 Layout Guidelines ................................................. 29
10.2 Layout Example .................................................... 29
11 器件和文档支持 ..................................................... 30
11.1 相关链接................................................................ 30
11.2 接收文档更新通知 ................................................. 30
11.3 社区资源................................................................ 30
11.4 商标....................................................................... 30
11.5 静电放电警告......................................................... 30
11.6 Glossary................................................................ 30
12 机械、封装和可订购信息....................................... 30
7
4 修订历史记录
Changes from Revision C (October 2016) to Revision D
Page
•
Changed RVBUS values From: MIN = 891, TYP = 900, MAX = 909 KΩ To: MIN = 855, TYP = 887, MAX = 920 KΩ ........... 6
Changes from Revision B (September 2016) to Revision C
Page
•
•
Changed text for Pin 7 in the Pin Functions table From: "default current mode detected (H); medium or high current
mode detected (L)." To: "Refer to Table 3 for more details." ................................................................................................ 3
Changed text for Pin 8 in the Pin Functions table From: "default or medium current mode detected (H); high current
mode detected (L)." To: "Refer to Table 3 for more details." ................................................................................................ 3
Changes from Revision A (March 2016) to Revision B
Page
•
Changed pins CC1 and CC2 values From: MIN = –0.3 MAX = VDD + 0.3 To: MIN –0.3 MAX = 6 in the Absolute
Maximum Ratings................................................................................................................................................................... 4
Changes from Original (October 2015) to Revision A
Page
•
•
•
•
•
•
•
•
•
•
Added Note 1 and 2 to the Pin Functions table...................................................................................................................... 3
Changed the DESCRIPTION of pin EN_N pin in the Pin Functions table ............................................................................. 3
Changed the DESCRIPTION of pin EN pin in the Pin Functions table.................................................................................. 3
Changed the DESCRIPTION of pin VDD in the Pin Functions table ....................................................................................... 3
Added Note 2 to the Electrical Characteristics table ............................................................................................................. 5
Added Test Condition "See Figure 1" to VBUS_THR in the Electrical Characteristics ......................................................... 6
Changed the last sentence of the Debug Accessory section............................................................................................... 12
Added Note: "SW must make sure..." to the Description of INTERRUPT_STATUS in Table 9 ......................................... 18
Added text to list item 2 in the TUSB320LA Initialization Procedure section....................................................................... 28
Added text to list item 2 in the TUSB320HA Initialization Procedure section ...................................................................... 28
2
Copyright © 2015–2017, Texas Instruments Incorporated
TUSB320LAI, TUSB320HAI
www.ti.com.cn
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
5 Pin Configuration and Functions
RWB Package
12-Pin X2QFN
RWB Package
12-Pin X2QFN
TUSB320LA Top View
TUSB320HA Top View
2
1
2
1
PORT
VBUS_DET
ADDR
3
4
5
6
12
11
10
9
VDD
PORT
VBUS_DET
ADDR
3
4
5
6
12
11
10
9
VDD
EN
EN_N
GND
GND
ID
INT_N/OUT3
ID
INT_N/OUT3
7
8
7
8
Pin Functions
PIN
TUSB320LA TUSB320HA
TYPE
DESCRIPTION
NAME
CC1
1
2
1
2
I/O
I/O
Type-C configuration channel signal 1
Type-C configuration channel signal 2
CC2
Tri-level input pin to indicate port mode. The state of this pin is sampled when EN_N is
asserted low in the TUSB320L device, EN is asserted high in the TUSB320H device, and VDD
is active. This pin is also sampled following a I2C_SOFT_RESET.
H - DFP (Pull-up to VDD if DFP mode is desired)
PORT(1)
3
3
I
NC - DRP (Leave unconnected if DRP mode is desired)
L - UFP (Pull-down or tie to GND if UFP mode is desired)
5-V to 28-V VBUS input voltage. VBUS detection determines UFP attachment. One 900-kΩ
external resistor required between system VBUS and VBUS_DET pin.
VBUS_DET(1)
ADDR(1)
4
5
4
5
I
I
Tri-level input pin to indicate I2C address or GPIO mode:
H — I2C is enabled and I2C 7-bit address is 0x67.
NC — GPIO mode (I2C is disabled)
L — I2C is enabled and I2C 7-bit address is 0x47.
ADDR pin should be pulled up to VDD if high configuration is desired
The INT_N/OUT3 is a dual-function pin. When used as the INT_N, the pin is an open drain
output in I2C control mode and is an active low interrupt signal for indicating changes in I2C
registers. When used as OUT3, the pin is in audio accessory detect in GPIO mode: no
detection (H), audio accessory connection detected (L).
INT_N/OUT3(1)
SDA/OUT1(1)(2)
SCL/OUT2(1)(2)
6
7
8
6
7
8
O
The SDA/OUT1 is a dual-function pin. When I2C is enabled (ADDR pin is high or low), this pin
is the I2C communication data signal. When in GPIO mode (ADDR pin is NC), this pin is an
open drain output for communicating Type-C current mode detect when the device is in UFP
mode: Refer to Table 3 for more details.
I/O
I/O
The SCL/OUT2 is a dual function pin. When I2C is enabled (ADDR pin is high or low), this pin
is the I2C communication clock signal. When in GPIO mode (ADDR pin is NC), this pin is an
open drain output for communicating Type-C current mode detect when the device is in UFP
mode: Refer to Table 3 for more details.
Open drain output; asserted low when the CC pins detect device attachment when port is a
source (DFP), or dual-role (DRP) acting as source (DFP).
ID
9
9
O
G
GND
10
10
Ground
Enable signal; active low. Pulled up to VDD internally to disable the TUSB320L device. If
controlled externally, must be held low at least for 50 ms after VDD has reached its valid
voltage level.
EN_N
11
—
I
Enable signal; active high. Pulled down to GND internally to disable the TUSB320H device. If
controlled externally, must be held low at least for 50 ms after VDD has reached its valid
voltage level.
EN
—
11
12
I
VDD
12
P
Positive supply voltage. VDD must ramp within 25 ms or less
(1) When VDD is off, the TUSB320 non-failsafe pins (VBUS_DET, ADDR, PORT, OUT[3:1] pins) could back-drive the TUSB320 device if not
handled properly. When necessary to pull these pins up, it is recommended to pullup PORT, ADDR, and INT_N/OUT3 to the device VDD
supply. The VBUS_DET must be pulled up to VBUS through a 900-kΩ resistor.
(2) When using the 3.3 V supply for I2C, the end user must ensure that the VDD is 3 V and above. Otherwise the I2C may back power the
device.
Copyright © 2015–2017, Texas Instruments Incorporated
3
TUSB320LAI, TUSB320HAI
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
www.ti.com.cn
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
–0.3
–0.3
–0.3
–0.3
–0.3
–65
MAX
UNIT
Supply voltage
Control pins
VDD
6
V
PORT, ADDR, ID, EN_N, INT_N/OUT3
CC1, CC2
VDD + 0.3
6
VDD + 0.3
4
V
SDA/OUT1, SCL/OUT2
VBUS_DET , EN
Storage temperature, Tstg
150
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
6.2 ESD Ratings
VALUE
UNIT
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±3000
V(ESD)
Electrostatic discharge
V
Charged-device model (CDM), per JEDEC specification JESD22-
C101(2)
±1500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
2.7
4
NOM
MAX
5
UNIT
V
VDD
Supply voltage range
System VBUS voltage
VBUS
5
28
V
TUSB320HAI and TUSB320LAI Operating free air temperature
range
TA
–40
25
85
°C
6.4 Thermal Information
TUSB320
THERMAL METRIC(1)
RWB (X2QFN)
12 PINS
169.3
68.1
UNIT
RθJA
Junction-to-ambient thermal resistance
°C/W
°C/W
°C/W
°C/W
°C/W
RθJC(top)
RθJB
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
83.4
ψJT
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
2.2
ψJB
83.4
RθJC(bot)
N/A
(1) For more information about traditional and new thermal metrics, see the Semiconductor and C Package Thermal Metrics application
report, SPRA953.
4
Copyright © 2015–2017, Texas Instruments Incorporated
TUSB320LAI, TUSB320HAI
www.ti.com.cn
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
TEST
CONDITIONS
PARAMETER
MIN
TYP
MAX
UNIT
POWER CONSUMPTION
Current consumption in unattached mode when port is
unconnected and waiting for connection. [VDD = 4.5 V,
EN_N (TUSB320LA) = L, EN (TUSB320HA) = H, ADDR =
IUNATTACHED_UFP
70
µA
NC, PORT = L]
Current consumption in active mode. [VDD = 4.5 V, EN_N
IACTIVE_UFP
(TUSB320LA) = L, EN (TUSB320HA) = H, ADDR = NC,
PORT = L]
70
µA
µA
Leakage current when VDD is supplied, but the TUSB320
device is not enabled. [VDD = 4.5 V, EN_N (TUSB320LA) =
H, EN (TUSB320HA) = L]
ISHUTDOWN
0.04
CC1 AND CC2 PINS
RCC_DB
Pulldown resistor when in dead-battery mode.
Pulldown resistor when in UFP or DRP mode.
4.1
4.6
5.1
5.1
6.1
5.6
kΩ
kΩ
RCC_D
Voltage level range for detecting a DFP attach when
configured as a UFP and DFP is advertising default current
source capability.
VUFP_CC_USB
0.25
0.7
0.61
1.16
2.04
1.64
1.64
2.74
V
V
V
V
V
V
Voltage level range for detecting a DFP attach when
configured as a UFP and DFP is advertising medium (1.5-
A) current source capability.
VUFP_CC_MED
Voltage level range for detecting a DFP attach when
configured as a UFP and DFP is advertising high (3-A)
current source capability.
VUFP_CC_HIGH
VTH_DFP_CC_USB
VTH_DFP_CC_MED
VTH_DFP_CC_HIGH
1.31
1.51
1.51
2.46
Voltage threshold for detecting a UFP attach when
configured as a DFP and advertising default current source
capability.
1.6
1.6
2.6
Voltage threshold for detecting a UFP attach when
configured as a DFP and advertising medium current (1.5-
A) source capability.
Voltage threshold for detecting a UFP attach when
configured as a DFP and advertising high current (3.0-A)
source capability.
Default mode pullup current source when operating in DFP
or DRP mode.
ICC_DEFAULT_P
ICC_MED_P
64
166
304
80
180
330
96
194
356
µA
µA
µA
Medium (1.5-A) mode pullup current source when
operating in DFP or DRP mode.
High (3-A) mode pullup current source when operating in
DFP or DRP mode.(1)
ICC_HIGH_P
CONTROL PINS: PORT, ADDR, INT/OUT3, EN_N, EN, ID
Low-level control signal input voltage (PORT, ADDR,
EN_N, EN)
VIL
VIM
VIH
0.4
0.56 × VDD
VDD
V
V
V
Mid-level control signal input voltage (PORT, ADDR)
0.28 × VDD
VDD – 0.3
High-level control signal input voltage (PORT, ADDR,
EN_N)
High-Level control signal input voltage for EN for
TUSB320HA
VIH_EN
1.05
3.65
V
IIH
IIL
High-level input current
Low-level input current
–20
–10
20
10
µA
µA
VDD = 0 V; ID = 5
V
IID_LEAKAGE
Current Leakage on ID pin
10
µA
REN_N
REN
Internal pullup resistance for EN_N for TUSB320LA
Internal pulldown resistance for EN for TUSB320HA
Internal pullup resistance (PORT, ADDR)
1.1
500
588
1.1
MΩ
kΩ
(2)
Rpu
kΩ
(2)
Rpd
Internal pulldown resistance (PORT, ADDR)
MΩ
Low-level signal output voltage (open-drain) (INT_N/OUT3,
ID)
VOL
IOL = –1.6 mA
0.4
V
(1) VDD must be 3.5 V or greater to advertise 3 A current.
(2) Internal pullup and pulldown for PORT and ADDR are removed after the device has sampled EN = high or EN_N = low.
Copyright © 2015–2017, Texas Instruments Incorporated
5
TUSB320LAI, TUSB320HAI
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
www.ti.com.cn
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
TEST
CONDITIONS
PARAMETER
MIN
TYP
MAX
UNIT
External pullup resistor on open drain IOs (INT_N/OUT3,
ID)
Rp_ODext
Rp_TLext
200
4.7
kΩ
kΩ
Tri-level input external pullup resistor (PORT, ADDR)
I2C - SDA/OUT1, SCL/OUT2 CAN OPERATE FROM 1.8 V OR 3.3 V (±10%)(3)
Supply range for I2C (SDA/OUT1, SCL/OUT2)
VDD_I2C
1.65
1.05
1.8
3.6
3.6
0.4
0.4
V
V
V
V
VIH
VIL
High-level signal voltage
Low-level signal voltage
VOL
Low-level signal output voltage (open drain)
IOL = –1.6 mA
See Figure 1
VBUS_DET IO PINS (CONNECTED TO SYSTEM VBUS SIGNAL)
VBUS_THR
RVBUS
VBUS threshold range
2.95
855
3.3
887
95
3.8
V
External resistor between VBUS and VBUS_DET pin
Internal pulldown resistance for VBUS_DET
920
KΩ
KΩ
RVBUS_PD
(3) When using 3.3 V for I2C, customer must ensure VDD is above 3.0 V at all times.
6.6 Timing Requirements
MIN
NOM
MAX
UNIT
I2C (SDA, SCL)
tSU:DAT
tHD;DAT
tSU:STA
tHD:STA
tSU:STO
tBUF
Data setup time
100
10
ns
ns
µs
µs
µs
µs
µs
µs
kHz
ns
ns
pF
pF
Data hold time
Set-up time, SCL to start condition
Hold time (repeated), start condition to SCL
Set up time for stop condition
0.6
0.6
0.6
1.3
Bus free time between a stop and start condition
Data valid time
tVD;DAT
tVD;ACK
fSCL
0.9
0.9
Data valid acknowledge time
SCL clock frequency; I2C mode for local I2C control
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
400
300
300
400
100
tr
tf
CBUS_100KHZ Total capacitive load for each bus line when operating at ≤ 100 kHz
CBUS_400KHz Total capacitive load for each bus line when operating at 400 kHz
6.7 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ms
Power on default of CC1 and CC2 voltage debounce DEBOUCE
tCCCB_DEFAULT
tVBUS_DB
168
2
time
register = 2'b00
Debounce of VBUS_DET pin after valid VBUS_THR
ms
Power-on default of percentage of time DRP
advertises DFP during a tDRP
DRP_DUTY_CYCLE
register = 2'b00
tDRP_DUTY_CYCLE
30%
The period during which the TUSB320HA or the
TUSB320LA in DFP mode completes a DFP to UFP
and back advertisement.
tDRP
50
26
75
49
100
ms
Time from TUSB320LA EN_N low or TUSB320HA EN
high and VDD active to I2C access available
tI2C_EN
100
95
ms
ms
tSOFT_RESET
Soft reset duration
6
Copyright © 2015–2017, Texas Instruments Incorporated
TUSB320LAI, TUSB320HAI
www.ti.com.cn
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
VBUS
VBUS_THR
TVBUS_DB
0 V
Figure 1. VBUS Detect and Debounce
Copyright © 2015–2017, Texas Instruments Incorporated
7
TUSB320LAI, TUSB320HAI
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
www.ti.com.cn
7 Detailed Description
7.1 Overview
The USB Type-C ecosystem operates around a small form factor connector and cable that is flippable and
reversible. Because of the nature of the connector, a scheme is required to determine the connector orientation.
Additional schemes are required to determine when a USB port is attached and what the acting role of the USB
port (DFP, UFP, DRP) is, as well as to communicate Type-C current capabilities. These schemes are
implemented over the CC pins according to the USB Type-C pecification. The TUSB320 devices provide
Configuration Channel (CC) logic for determining USB port attach and detach, role detection, cable orientation,
and Type-C current mode. The TUSB320 devices also contains several features such as mode configuration and
low standby current which make these devices ideal for source or sinks in USB2.0 applications.
ADDR
3-State Buffer
PORT
CC±
Connection and
cable detection
Digital Controller
CC2
SDA/OUT±
I2C
CSR
SCL/OUT2
Open Drain
Output
CTRL_EN
VBUS Detection
EN_N
EN_N Logic
SYS_VBUS
900 K ±±1
Copyright © 20±6, Texas Instruments Incorporated
Figure 2. Functional Block Diagram of TUSB320
7.1.1 Cables, Adapters, and Direct Connect Devices
Type-C specification defines several cables, plugs, and receptacles to be used to attach ports. The TUSB320
devices support all cables, receptacles, and plugs. The TUSB320 devices do not support any USB Type-C
feature which requires USB power delivery communication over CC lines like e-marking or alternate mode.
7.1.1.1 USB Type-C Receptacles and Plugs
Below is list of Type-C receptacles and plugs supported by the TUSB320 devices:
•
USB Type-C receptacle for USB2.0 platforms and devices
8
Copyright © 2015–2017, Texas Instruments Incorporated
TUSB320LAI, TUSB320HAI
www.ti.com.cn
ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
Overview (continued)
•
•
USB full-featured Type-C plug
USB2.0 Type-C plug
7.1.1.2 USB Type-C Cables
Below is a list of Type-C cables types supported by the TUSB320 devices:
•
•
•
USB full-featured Type-C cable
USB2.0 Type-C cable with USB2.0 plug
Captive cable on remote device with either a USB full-featured plug or USB2.0 plug
7.1.1.3 Legacy Cables and Adapters
The TUSB320 devices support legacy cable adapters as defined by the Type-C specification. The cable adapter
must correspond to the mode configuration of a TUSB320 device.
Figure 3 displays the TUSB320 Legacy Adapter Implementation Circuit.
To System VBUS detection
VBUS
900 kΩ 1%
Rp (56k 5%)
VBUS_DET
TUSB320
CC
CC
Rd (5.1k 10%)
Legacy Host Adapter
Copyright © 2016, Texas Instruments Incorporated
Figure 3. Legacy Adapter Implementation Circuit
7.1.1.4 Direct Connect Devices
The TUSB320 devices support the attaching and detaching of a direct-connect device.
7.1.1.5 Audio Adapters
Additionally, the TUSB320 devices support audio adapters for audio accessory mode, including:
•
•
Passive Audio Adapter
Charge Through Audio Adapter
7.2 Feature Description
7.2.1 Port Role Configuration
The TUSB320 devices can be configured as a downstream facing port (DFP), upstream facing port (UFP), or
dual-role port (DRP) using the tri-level PORT pin. The PORT pin should be pulled high to VDD using a pullup
resistance, low to GND or left as floated on the PCB to achieve the desired mode. This flexibility allows a
TUSB320 device to be used in a variety of applications. A TUSB320 device samples the PORT pin after reset
and maintains the desired mode until the TUSB320 device is reset again. The port role can also be selected
through I2C registers. Table 1 lists the supported features in each mode:
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Feature Description (continued)
Table 1. Supported Features for the TUSB320 Device by Mode
PORT PIN
HIGH
(DFP ONLY)
LOW
(UFP ONLY)
NC
(DRP)
SUPPORTED
FEATURES
Port attach and
detach
Yes
Yes
Yes
Yes
Yes
Yes
Cable orientation
(through I2C)
Current advertisement
Current detection
Yes
-
-
Yes (DFP)
Yes (UFP)
Yes
Accessory modes
(audio and debug)
Yes
Yes
Yes
Try.SRC
Try.SNK
-
-
Yes
Yes
-
-
Active cable detection
I2C / GPIO
Yes
Yes
Yes
-
-
Yes (DFP)
Yes
Yes
Yes
Yes
Legacy cables
VBUS detection
Yes
Yes (UFP)
7.2.1.1 Downstream Facing Port (DFP) - Source
The TUSB320 device can be configured as a DFP-only by pulling the PORT pin high through a resistance to VDD
or by changing the MODE_SELECT register. In DFP-only mode, the TUSB320 device constantly presents Rps
on both CC. In DFP-only mode, the TUSB320 device initially advertises default USB Type-C current. The Type-C
current can be adjusted through I2C if the system requires to increase the amount advertised. The TUSB320
device adjusts the Rps to match the desired Type-C current advertisement. In GPIO mode, the TUSB320 device
only advertises default Type-C current.
When configured as a DFP, the TUSB320 device can operate with older USB Type-C 1.0 devices except for a
USB Type-C 1.0 DRP device. A USB Type-C 1.1 compliant DFP can not connect to a Type-C 1.0 DRP. Because
the TUSB320 device is compliant to Type-C 1.1, the TUSB320 device can not operate with a USB Type-C 1.0
DRP device. This limitation is a result of a backwards compatibility problem between USB Type-C 1.1 DFP and a
USB Type-C 1.0 DRP.
7.2.1.2 Upstream Facing Port (UFP) - Sink
The TUSB320 device can be configured as a UFP only by pulling the PORT pin low to GND. In UFP mode, the
TUSB320 device constantly presents pulldown resistors (Rd) on both CC pins. The TUSB320 device monitors
the CC pins for the voltage level corresponding to the Type-C mode current advertisement by the connected
DFP. The TUSB320 device debounces the CC pins and wait for VBUS detection before successfully attaching. As
a UFP, the TUSB320 device detects and communicates the advertised current level of the DFP to the system
through the OUT1 and OUT2 GPIOs (if in GPIO mode) or through the I2C CURRENT_MODE_DETECT register
one time in the Attached.SNK state.
7.2.1.3 Dual Role Port (DRP)
The TUSB320 device can be configured to operate as a DRP when the PORT pin is left floated on the PCB. In
DRP mode, the TUSB320 device toggles between operating as a DFP and a UFP. When functioning as a DFP in
DRP mode, the TUSB320 device complies with all operations as defined for a DFP according to the Type-C
specification. When presenting as a UFP in DRP mode, the TUSB320 device operates as defined for a UFP
according to the Type-C specification.
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The TUSB320 supports two optional Type-C DRP features called Try.SRC and Try.SNK. Products supporting
dual-role functionality may have a requirement to be a source (DFP) or a sink (UFP) when connected to another
dual-role capable product. For example, a dual-role capable notebook can be a source when connected to a
tablet, or a cell phone can be a sink when connected to a notebook or tablet. When standard DRP products
(products which don’t support either Try.SRC or Try.SNK) are connected together, the role (UFP or DFP)
outcome is not predetermined. These two optional DRP features provide a means for dual-role capable products
to connect to another dual-role capable product in the role desired. Try.SRC and Try.SNK are only available
when TUSB320 is configured in I2C mode. When operating in GPIO mode, the TUSB320 will always operate as
a standard DRP.
The Try.SRC feature of the TUSB320 device provides a means for a DRP product to connect as a DFP when
connected to another DRP product that doesn’t implement Try.SRC. When two products which implement
Try.SRC are connected together, the role outcome of either UFP or DFP is the same as a standard DRP.
Try.SRC is enabled by changing I2C register SOURCE_PREF to 2’b11. Once this register is changed to 2’b11,
the TUSB320 will always attempt to connect as a DFP when attached to another DRP capable device.
The Try.SNK feature of the TUSB320 device provides a method for a DRP product to connect as a UFP when
connected to another DRP product that doesn’t implement Try.SNK. When two products which implement
Try.SNK are connected together, the role outcome of either UFP or DFP is the same as a standard DRP.
Try.SNK is enabled by changing I2C register SOURCE_PREF to 2’b01. Once this register is changed to 2’b01,
the TUSB320 will always attempt to connect as a UFP when attached to another DRP capable device.
7.2.2 Type-C Current Mode
When a valid cable detection and attach have been completed, the DFP has the option to advertise the level of
Type-C current a UFP can sink. The default current advertisement for the TUSB320 device is max of 500 mA (for
USB2.0) or max of 900 mA (for USB3.1). If a higher level of current is available, the I2C registers can be written
to provide medium current at 1.5 A or high current at 3 A. When the CURRENT_MODE_ADVERTISE register
has been written to advertise higher than default current, the DFP adjusts the Rps for the specified current level.
If a DFP advertises 3 A, system designer must ensure that the VDD of the TUSB320 device is 3.5 V or greater.
Table 2 lists the Type-C current advertisements in GPIO an I2C modes.
Table 2. Type-C Current Advertisement for GPIO and I2C Modes
GPIO MODE (ADDR PIN IN NC)
I2C MODE (ADDR PIN H, L)
TYPE-C CURRENT
UFP (PORT PIN L)
DFP (PORT PIN H)
UFP
DFP
max of 500
mA (USB2.0)
max of 900
mA (USB3.1)
I2C register default is 500
or 900 mA (max)
Default
Only advertisement
N/A
Current mode detected
and output through OUT1
/ OUT2
Current mode detected
and read through I2C
register
Medium - 1.5 A (max)
Advertisement selected
through writing I2C
register
High - 3 A (max)
7.2.3 Accessory Support
The TUSB320 device supports audio and debug accessories in UFP, DFP mode and DRP mode. Audio and
debug accessory support is provided through reading of I2C registers. Audio accessory is also supported through
GPIO mode with INT_N/OUT3 pin (audio accessory is detected when INT_N/OUT3 pin is low).
7.2.3.1 Audio Accessory
Audio accessory mode is supported through two types of adapters. First, the passive audio adapter can be used
to convert the Type-C connector into an audio port. To effectively detect the passive audio adapter, the TUSB320
device must detect a resistance < Ra on both of the CC pins.
Secondly, a charge through audio adapter can be used. The primary difference between a passive and charge
through adapter is that the charge through adapter supplies 500 mA of current over VBUS. The charge through
adapter contains a receptacle and a plug. The plug acts as a DFP and supply VBUS when the plug detects a
connection.
When the TUSB320 device is configured in GPIO mode, OUT3 pin determines if an audio accessory is
connected. When an audio accessory is detected, the OUT3 pin is pulled low.
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7.2.3.2 Debug Accessory
Debug is an additional state supported by USB Type-C. The specification does not define a specific user
scenario for this state, but the specification is important because the end user could use debug accessory mode
to enter a test state for production specific to the application. The TUBS320 device will detect a debug accessory
if Rd or Rp is detected on both CC1 and CC2.
7.2.4 I2C and GPIO Control
The TUSB320 device can be configured for I2C communication or GPIO outputs using the ADDR pin. The ADDR
pin is a tri-level control pin. When the ADDR pin is left floating (NC), the TUSB320 device is in GPIO output
mode. When the ADDR pin is pulled high or pulled low, the TUSB320 device is in I2C mode.
All outputs for the TUSB320 device are open drain configuration.
The OUT1 and OUT2 pins are used to output the Type-C current mode when in GPIO mode. Additionally, the
OUT3 pin is used to communicate the audio accessory mode in GPIO mode. Table 3 lists the output pin settings.
See the Pin Configuration and Functions section for more information.
Table 3. Simplified Operation for OUT1 and OUT2
OUT1
OUT2
ADVERTISEMENT
H
H
L
H
L
Default Current in Unattached State
Default Current in Attached State
Medium Current (1.5 A) in Attached State
High Current (3.0 A) in Attached State
H
L
L
When operating in I2C mode, the TUSB320 device uses the SCL and SDA lines for clock and data and the
INT_N pin to communicate a change in I2C registers, or an interrupt, to the system. The INT_N pin is pulled low
when the TUSB320 device updates the registers with new information. The INT_N pin is open drain. The
INTERRUPT_STATUS register will be set when the INT_N pin is pulled low. To clear the INTERRUPT_STATUS
register, the end user writes to I2C.
When operating in GPIO mode, the OUT3 pin is used in place of the INT_N pin to determine if an audio
accessory is detected and attached. The OUT3 pin is pulled low when an audio accessory is detected.
NOTE
When using the 3.3 V supply for I2C, the end user must ensure that the VDD is 3 V and
above. Otherwise the I2C can back power the device.
7.2.5 VBUS Detection
The TUSB320 device supports VBUS detection according to the Type-C specification. VBUS detection is used to
determine the attachment and detachment of a UFP and to determine the entering and exiting of accessary
modes. VBUS detection is also used to successfully resolve the role in DRP mode.
The system VBUS voltage must be routed through a 900-kΩ resistor to the VBUS_DET pin on the TUSB320
device if the PORT pin is configured as a DRP or a UFP. If the TUSB320 device is configured as a DFP and only
ever used in DFP mode, the VBUS_DET pin can be left unconnected.
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7.3 Device Functional Modes
The TUSB320 device has four functional modes. Table 4 lists these modes:
Table 4. USB Type-C States According to TUSB320 Functional Modes
MODES
GENERAL BEHAVIOR
PORT PIN
STATES(1)
Unattached.SNK
Unattached.Accessory
AttachWait.Accessory
AttachWait.SNK
UFP
USB port unattached. ID, PORT
operational. I2C on. CC pins
Unattached
Toggle Unattached.SNK → Unattached.SRC
AttachedWait.SRC or AttachedWait.SNK
Unattached.SRC
configure according to PORT pin.
DRP
DFP
AttachWait.SRC
Attached.SNK
UFP
DRP
DFP
Audio accessory
Debug accessory.SNK
Attached.SNK
Attached.SRC
USB port attached. All GPIOs
operational. I2C on.
Active
Audio accessory
Debug accessory.SNK or Debug accessory.SRC
Attached.SRC
Audio accessory
Debug accessory.SRC
No operation.
VDD not available.
Dead battery
Shutdown
UFP/DRP/DFP
UFP/DRP/DFP
Default device state to UFP/SNK with Rd.
VDD available.
TUSB320LA EN_N pin high.
TUSB320HA EN pin low.
Default device state to UFP/SNK with Rd.
(1) Required; not in sequential order.
7.3.1 Unattached Mode
Unattached mode is the primary mode of operation for the TUSB320 device, because a USB port can be
unattached for a lengthy period of time. In unattached mode, VDD is available, and all IOs and I2C are
operational. After the TUSB320 device is powered up, the part enters unattached mode until a successful attach
has been determined. Initially, right after power up, the TUSB320 device comes up as an Unattached.SNK. The
TUSB320 device checks the PORT pin and operates according to the mode configuration. The TUSB320 device
toggles between the UFP and the DFP if configured as a DRP. In unattached mode, I2C can be used to change
the mode configuration or port role if the board configuration of the PORT pin is not the desired mode. Writing to
the I2C MODE_SELECT register can override the PORT pin in unattached mode. The PORT pin is only sampled
at reset (EN_N high to low transition for the TUSB320LA device or the EN low to high transition for
theTUSB320HA device), after I2C_SOFT_RESET, or power up. I2C must be used after reset to change the
device mode configuration.
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7.3.2 Active Mode
Active mode is defined as the port being attached. In active mode, all GPIOs are operational, and I2C is read /
write (R/W). When in active mode, the TUSB320 device communicates to the AP that the USB port is attached.
This communication happens through the ID pin if TUSB320 is configured as a DFP or DRP connect as source.
If TUSB320 is configured as a UFP or a DRP connected as a sink, the OUT1/OUT2 and INT_N/OUT3 pins are
used. The TUSB320 device exits active mode under the following conditions:
•
•
•
•
•
Cable unplug
VBUS removal if attached as a UFP
Dead battery; system battery or supply is removed
TUSB320LA EN_N pin floated or pulled high
TUSB320HA EN pin floated or pulled low.
During active mode, I2C be used to change the mode configuration following the sequence below. This same
sequence is valid when TUSB320 is in unattached mode.
•
•
•
•
Set the DISABLE_TERM register (address 0x0A bit 0) to a 1'b1.
Change the MODE_SELECT register (address 0x0A bits 5:4) to desired mode of operation.
Wait 5 ms.
Clear the DISABLE_TERM register (address 0x0A bit 0) to 1'b0.
7.3.3 Dead Battery Mode
During dead battery mode, VDD is not available. CC pins always default to pulldown resistors in dead battery
mode. Dead battery mode means:
•
•
TUSB320 in UFP with 5.1-kΩ ± 20% Rd; cable connected and providing charge
TUSB320 in UFP with 5.1-kΩ ± 20% Rd; nothing connected (application could be off or have a discharged
battery)
NOTE
When VDD is off, the TUSB320 non-failsafe pins (VBUS_DET, ADDR, PORT, OUT[3:1]
pins) could back-drive the TUSB320 device if not handled properly. When necessary to
pull these pins up, TI recommendeds pulling up PORT, ADDR, and INT_N/OUT3 to the
device’s VDD supply. The VBUS_DET must be pulled up to VBUS through a 900-kΩ
resistor.
7.3.4 Shutdown Mode
Shutdown mode for TUSB320LA device is defined as follows:
•
•
•
Supply voltage available and EN_N pin is pulled high or floating.
EN_N pin has internal pullup resistor.
The TUSB320LA device is off, but still maintains the Rd on the CC pins
Shutdown mode for TUSB320HA device is defined as follows:
•
•
•
Supply voltage available and EN pin is pulled low or floating.
EN pin has internal pulldown resistor.
The TUSB320HA device is off, but still maintains the Rd on the CC pins
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7.4 Programming
For further programmability, the TUSB320 device can be controlled using I2C. The TUSB320 device local I2C
interface is available for reading/writing after TI2C_EN when the device is powered up. The SCL and SDA terminals
are used for I2C clock and I2C data respectively. If I2C is the preferred method of control, the ADDR pin must be
set accordingly.
Table 5. TUSB320 I2C Addresses
TUSB320 I2C Target Address
ADDR pin
Bit 7 (MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 (W/R)
H
L
1
1
1
0
0
0
0
0
1
1
1
1
1
1
0/1
0/1
The following procedure should be followed to write to TUSB320 I2C registers:
1. The master initiates a write operation by generating a start condition (S), followed by the TUSB320 7-bit
address and a zero-value R/W bit to indicate a write cycle.
2. The TUSB320 device acknowledges the address cycle.
3. The master presents the sub-address (I2C register within the TUSB320 device) to be written, consisting of
one byte of data, MSB-first.
4. The TUSB320 device acknowledges the sub-address cycle.
5. The master presents the first byte of data to be written to the I2C register.
6. The TUSB320 device acknowledges the byte transfer.
7. The master can continue presenting additional bytes of data to be written, with each byte transfer completing
with an acknowledge from the TUSB320 device.
8. The master terminates the write operation by generating a stop condition (P).
The following procedure should be followed to read the TUSB320 I2C registers:
1. The master initiates a read operation by generating a start condition (S), followed by the TUSB320 7-bit
address and a one-value R/W bit to indicate a read cycle.
2. The TUSB320 device acknowledges the address cycle.
3. The TUSB320 device transmits the contents of the memory registers MSB-first starting at register 00h or last
read sub-address+1. If a write to the T I2C register occurred prior to the read, then the TUSB320 device
starts at the sub-address specified in the write.
4. The TUSB320 device waits for either an acknowledge (ACK) or a not-acknowledge (NACK) from the master
after each byte transfer; the I2C master acknowledges reception of each data byte transfer.
5. If an ACK is received, the TUSB320 device transmits the next byte of data.
6. The master terminates the read operation by generating a stop condition (P).
The following procedure should be followed for setting a starting sub-address for I2C reads:
1. The master initiates a write operation by generating a start condition (S), followed by the TUSB320 7-bit
address and a zero-value R/W bit to indicate a read cycle.
2. The TUSB320 device acknowledges the address cycle.
3. The master presents the sub-address (I2C register within the TUSB320 device) to be read, consisting of one
byte of data, MSB-first.
4. The TUSB320 device acknowledges the sub-address cycle.
5. The master terminates the read operation by generating a stop condition (P).
NOTE
If no sub-addressing is included for the read procedure, then the reads start at register
offset 00h and continue byte-by-byte through the registers until the I2C master terminates
the read operation. If a I2C address write occurred prior to the read, then the reads start at
the sub-address specified by the address write.
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7.5 Register Maps
Table 6. CSR Registers
ACCESS
NAME
TAG
MEANING
R
W
S
Read
Write
The field can be read by software.
The field can be written by software.
Set
The field can be set by a write of one. Writes of zeros to the field have no effect.
C
Clear
The field can be cleared by a write of one. Writes of zeros to the field have no effect.
Hardware can autonomously update this field.
U
Update
No Access
NA
Not accessible or not applicable.
7.5.1 CSR Registers (address = 0x00 – 0x07)
Figure 4. CSR Registers (address = 0x00 – 0x07)
7
6
5
4
3
2
1
0
DEVICE_ID
R
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7. CSR Registers (address = 0x00 – 0x07)
Bit
Field
Type
Reset
Description
For the TUSB320 device these fields return a string of ASCII
characters returning TUSB320
Addresses 0x07 - 0x00 = {0x00 0x54 0x55 0x53 0x42 0x33 0x32
0x30}
7:0
DEVICE_ID
R
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7.5.2 CSR Registers (address = 0x08)
Figure 5. CSR Registers (address = 0x08)
7
6
5
4
3
2
1
0
ACTIVE_CABLE_
DETECTION
CURRENT_MODE_ADVERTISE
RW
CURRENT_MODE_DETECT
RU
ACCESSORY_CONNECTED
RU
RU
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 8. CSR Registers (address = 0x08)
Bit
Field
Type
Reset
Description
These bits are programmed by the application to raise the
current advertisement from default.
00 – Default (500 mA / 900 mA) initial value at startup
7:6
CURRENT_MODE_ADVERTISE
00
RW
01 – Mid (1.5 A)
10 – High (3 A)
11 – Reserved
These bits are set when a UFP determines the Type-C Current
mode.
00 – Default (value at start up)
01 – Medium
5:4
CURRENT_MODE_DETECT
00
RU
10 – Audio Charged through accessory – 500 mA
11 – High
These bits are read by the application to determine if an
accessory was attached.
000 – No accessory attached (default)
001 – Reserved
010 – Reserved
011 – Reserved
3:1
ACCESSORY_CONNECTED
000
RU
100 – Audio accessory
101 – Audio charged thru accessory
110 – Debug accessory when the TUSB320 device is connected
as a DFP.
111 – Debug accessory when the TUSB320 device is connected
as a UFP.
This flag indicates that an active cable has been plugged into
the Type-C connector. When this field is set, an active cable is
detected.
0
ACTIVE_CABLE_DETECTION
RU
0
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7.5.3 CSR Registers (address = 0x09)
Figure 6. CSR Registers (address = 0x09)
7
6
5
4
3
—
R
2
1
0
DISABLE_UFP_
ACCESSORY
ATTACHED_STATE
RU
CABLE_DIR INTERRUPT_STATUS
RU RCU
DRP_DUTY_CYCLE
RW
RW
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 9. CSR Registers (address = 0x09)
Bit
Field
Type
Reset
Description
This is an additional method to communicate attach other than
the ID pin. These bits can be read by the application to
determine what was attached.
00 – Not attached (default)
01 – Attached.SRC (DFP)
10 – Attached.SNK (UFP)
11 – Attached to an accessory
7:6
ATTACHED_STATE
00
RU
Cable orientation. The application can read these bits for cable
orientation information.
5
4
CABLE_DIR
1
0
RU
0 – CC1
1 – CC2 (default)
The INT pin is pulled low whenever a CSR with RU in Access
field changes. When a CSR change has occurred this bit should
be held at 1 until the application clears it. A write of 1'b1 is
required to clear this field.
0 – Clear
INTERRUPT_STATUS
RCU
1 – Interrupt (When INT_N is pulled low, this bit will be 1. )
Note: SW must make sure the INTERRUPT_STATUS has been
cleared to zero. Rewrites to this register are needed for the
INT_N to be correctly asserted for all interrupt events.
3
Reserved
R
0
Reserved
Percentage of time that a DRP advertises DFP during tDRP
00 – 30% (default)
2:1
DRP_DUTY_CYCLE
00
01 – 40%
RW
10 – 50%
11 – 60%
Settings this field will disable UFP accessory support.
0 – UFP accessory support enabled (Default)
1 – UFP accessory support disabled
0
DISABLE_UFP_ACCESSORY
RW
0
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7.5.4 CSR Registers (address = 0x0A)
Figure 7. CSR Registers (address = 0x0A)
7
6
5
4
3
2
1
0
DISABLE_TERM
RW
DEBOUNCE
RW
MODE_SELECT
RW
I2C_SOFT_RESET
SOURCE_PREF
RW
RSU
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 10. CSR Registers (address = 0x0A)
Bit
Field
Type
Reset
Description
The nominal amount of time the TUSB320 device debounces
the voltages on the CC pins.
00 – 168 ms (default)
01 – 118 ms
7:6
DEBOUNCE
00
RW
10 – 134 ms
11 – 152 ms
This register can be written to set the TUSB320 device mode
operation. The ADDR pin must be set to I2C mode. If the default
is maintained, the TUSB320 device operates according to the
PORT pin levels and modes.
5:4
MODE_SELECT
00
RW
00 – Maintain mode according to PORT pin selection (default)
01 – UFP mode (unattached.SNK)
10 – DFP mode(unattached.SRC)
11 – DRP mode(start from unattached.SNK)
This resets the digital logic. The bit is self-clearing. A write of 1
starts the reset. The following registers can be affected after
setting this bit:
CURRENT_MODE_DETECT
ACTIVE_CABLE_DETECTION
ACCESSORY_CONNECTED
ATTACHED_STATE
3
I2C_SOFT_RESET
RSU
0
CABLE_DIR
This field controls the TUSB320 behavior when configured as a
DRP.
00 – Standard DRP (default)
01 – DRP will perform Try.SNK.
10 – Reserved.
2:1
SOURCE_PREF
DISABLE_TERM
RW
RW
00
11 – DRP will perform Try.SRC.
This field will disable the termination on the CC pins and
transition the CC state machine of the TUSB320 device to the
Disable State.
0
0
0 – Termination enabled according to Port (Default)
1 – Termination disabled and state machine held in Disabled
state.
Copyright © 2015–2017, Texas Instruments Incorporated
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7.5.5 CSR Registers (address = 0x45)
Figure 8. CSR Registers (address = 0x45)
7
6
5
—
R
4
3
2
DISABLE_RD_RP
RW
1
0
—
RW
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 11. CSR Registers (address = 0x45)
Bit
Field
Type
Reset
Description
7:3
Reserved
R
00000
Reserved
When this field is set, Rd and Rp are disabled.
0 – Normal operation (default)
2
DISABLE_RD_RP
Reserved
RW
RW
0
1 – Disable Rd and Rp
1:0
00
For TI internal use only. Do not change default value.
7.5.6 CSR Registers (address = 0xA0)
Figure 9. CSR Registers (address = 0xA0)
7
6
5
4
3
2
1
0
REVISION
R
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 12. CSR Registers (address = 0xA0)
Bit
Field
Type
Reset
Description
Revision of TUSB320. Defaults to 0x02.
7:0
REVISION
R
0x02
20
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8 Application and Implementation
NOTE
Information in the following applications sections 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.
8.1 Application Information
The TUSB320 device is a Type-C configuration channel logic and port controller. The TUSB320 device can
detect when a Type-C device is attached, what type of device is attached, the orientation of the cable, and power
capabilities (both detection and broadcast). The TUSB320 device can be used in a source application (DFP), in a
sink application (UFP), or a combination source/sink application (DRP).
8.2 Typical Application
8.2.1 DRP in I2C Mode
Figure 10 and Figure 11 show a Type-C configuration for the DRP mode.
5 V
Legacy TypeA
Switch
VBUS
VBUS
PMIC
VPH
PORT
ID
VBUS
VBUS
2.7 - 5 V VDD
PORT
CC1
CC2
VDD
ID
CC1
CC2
CC/Mode
Controller
CC/Mode
Controller
DP
DM
DP
DM
GPIOs
I2C
GPIOs
I2C
Processor
Processor
TUSB320
TUSB320
Copyright © 2016, Texas Instruments Incorporated
Copyright © 2016, Texas Instruments Incorporated
Figure 10. TUSB320 in DRP Mode Supporting Default
Implementation
Figure 11. TUSB320 in DRP Mode Supporting Advanced
Power Delivery
Figure 12 shows the TUSB320 device configured as a DRP in I2C mode.
USB VBUS Switch
(optional BC 1.2 support for legacy)
SCL
SDA
DM
DP
DM_OUT
DP_OUT
DM_IN
DP_IN
VOUT
System VBUS
VIN
PS_EN
EN
FAULT#
PS_FAULT#
VBUS
I2C I/O
1.8V or 3.3V
VBAT
USB2
OTG
and
150uF
DM
DP
100nF
VBUS
PMIC
900K
B12
B11
A1
A2
A3
A4
200K
200K
4.7K
4.7K
VBUS_DET
B10
B9
PORT
INT_N/OUT3
CC1
INT#
CC1
CC2
A5
A6
B8
B7
B6
TUSB320LA
CC2
ID
SCL
SDA
ID
A7
A8
B5
B4
B3
SCL/OUT2
SDA/OUT1
A9
A10
A11
1uF
B2
B1
A12
Figure 12. DRP in I2C Mode Schematic
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Typical Application (continued)
8.2.1.1 Design Requirements
For this design example, use the parameters listed in Table 13:
Table 13. Design Requirements for DRP in I2C Mode
DESIGN PARAMETER
VDD (2.75 V to 5 V)
VALUE
VBAT (less than 5 V)
Mode (I2C or GPIO)
I2C: ADDR pin must be pulled down or pulled up
0x47: ADDR pin must be pulled low or tied to GND
DRP: PORT pin is NC
I2C address (0x67 or 0x47)
Type-C port type (UFP, DFP, or DRP)
Shutdown support
No
8.2.1.2 Detailed Design Procedure
The TUSB320 device supports a VDD in the range of 2.75 V to 5 V. In this particular use case, VBAT which must
be in the required VDD range is connected to the VDD pin. A 100-nF capacitor is placed near VDD
.
The TUSB320 device is placed into I2C mode by either pulling the ADDR pin high or low. In this case, the ADDR
pin is tied to GND which results in a I2C address of 0x47. The SDA and SCL must be pulled up to either 1.8 V or
3.3 V. When pulled up to 3.3 V, the VDD supply must be at least 3 V to keep from back-driving the I2C interface.
The TUSB320LA device can enter shutdown mode by pulling the EN_N pin high, which puts the TUSB320LA
device into a low power state. In this case, external control of the EN_N pin is not implemented and therefore the
EN_N pin is tied to GND. The TUSB320HA device can enter shutdown mode by pulling the EN pin low, which
puts the TUSB320HA device into a low power state. In this case, external control of the EN pin is not
implemented and therefore the EN pin is tied to 1.8 V or 3.3 V.
The INT_N/OUT3 pin is used to notify the PMIC when a change in the TUSB320 I2C registers occurs. This pin is
an open drain output and requires an external pullup resistor. The pin should be pulled up to VDD using a 200-kΩ
resistor.
The ID pin is used to indicate when a connection has occurred if the TUSB320 device is a DFP while configured
for DRP. An OTG USB controller can use this pin to determine when to operate as a USB Host or USB Device.
When this pin is driven low, the OTG USB controller functions as a host and then enables VBUS. The Type-C
standard requires that a DFP not enable VBUS until the DFP is in the Attached.SRC state. If the ID pin is not low
but VBUS is detected, then OTG USB controller functions as a device. The ID pin is open drain output and
requires an external pullup resistor. THe ID pin should be pulled up to VDD using a 200-kΩ resistor.
The Type-C port mode is determined by the state of the PORT pin. When the PORT pin is not connected, the
TUSB320 device is in DRP mode. The Type-C port mode can also be controlled by the MODE_SELECT register
through the I2C interface.
The VBUS_DET pin must be connected through a 900-kΩ resistor to VBUS on the Type-C that is connected. This
large resistor is required to protect the TUSB320 device from large VBUS voltage that is possible in present day
systems. This resistor along with internal pulldown keeps the voltage observed by the TUSB320 device in the
recommended range.
The USB2 specification requires the bulk capacitance on VBUS based on UFP or DFP. When operating the
TUSB320 device in a DRP mode, it alternates between UFP and DFP. If the TUSB320 device connects as a
UFP, the large bulk capacitance must be removed.
Table 14. USB2 Bulk Capacitance Requirements
PORT CONFIGURATION
Downstream facing port (DFP)
Upstream facing port (UFP)
MIN
120
1
MAX
UNIT
µF
10
µF
22
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ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
8.2.1.3 Application Curves
Figure 13. Application Curve for DRP in I2C Mode
Copyright © 2015–2017, Texas Instruments Incorporated
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8.2.2 DFP in I2C Mode
Figure 14 and Figure 15 show a Type-C configuration for the DFP mode.
Legacy TypeA
Switch
5 V
VBUS
VBUS
PMIC
VDD
PORT
VPH
ID
VBUS
VDD
VBUS
2.7 - 5 V VDD
PORT
CC1
CC2
VDD
ID
CC1
CC2
CC/Mode
Controller
CC/Mode
Controller
DP
DM
GPIOs
I2C
DP
DM
GPIOs
I2C
Processor
Processor
TUSB320
TUSB320
Copyright © 2016, Texas Instruments Incorporated
Copyright © 2016, Texas Instruments Incorporated
Figure 14. TUSB320 in DFP Mode Supporting Default
Implementation
Figure 15. TUSB320 in DFP Mode Supporting Advanced
Power Delivery
Figure 16 shows the TUSB320 device configured as a DFP in I2C mode.
USB VBUS Switch
(optional BC 1.2 support for legacy)
SCL
SDA
DM
DP
DM_OUT
DP_OUT
DM_IN
DP_IN
VOUT
System VBUS
VIN
PS_EN
EN
FAULT#
PS_FAULT#
VBUS
I2C I/O
1.8V or 3.3V
VDD_5V
USB2
OTG
and
150uF
DM
DP
100nF
VBUS
PMIC
900K
B12
B11
A1
A2
A3
A4
200K
200K
4.7K
4.7K
200K
VBUS_DET
B10
B9
PORT
INT_N/OUT3
CC1
INT#
CC1
CC2
A5
A6
B8
B7
B6
TUSB320LA
CC2
ID
SCL
SDA
ID
A7
A8
B5
B4
B3
SCL/OUT2
SDA/OUT1
A9
A10
A11
B2
B1
A12
Figure 16. DFP in I2C Mode Schematic
8.2.2.1 Design Requirements
For this design example, use the parameters listed in Table 15:
Table 15. Design Requirements for DFP in I2C Mode
DESIGN PARAMETER
VDD (2.75 V to 5 V)
VALUE
5 V
Mode (I2C or GPIO)
I2C: ADDR pin must be pulled down or pulled up
0x47: ADDR pin must be pulled low or tied to GND
DFP: PORT pin is pulled up
I2C address (0x67 or 0x47)
Type-C port type (UFP, DFP, or DRP)
Shutdown support
No
24
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ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
8.2.2.2 Detailed Design Procedure
The TUSB320 device supports a VDD in the range of 2.75 V to 5 V. In this particular case, VDD is set to 5 V. A
100-nF capacitor is placed near VDD
.
The TUSB320 device is placed into I2C mode by either pulling the ADDR pin high or low. In this particular case,
the ADDR pin is tied to GND which results in a I2C address of 0x47. The SDA and SCL must be pulled up to
either 1.8 V or 3.3 V. When pulled up to 3.3 V, the VDD supply must be at least 3 V to keep from back-driving the
I2C interface.
The TUSB320LA device can enter shutdown mode by pulling the EN_N pin high, which puts the TUSB320LA
device into a low power state. In this case, external control of the EN_N pin is not implemented and therefore the
EN_N pin is tied to GND. The TUSB320HA device can enter shutdown mode by pulling the EN pin low, which
puts the TUSB320HA device into a low power state. In this case, external control of the EN pin is not
implemented and therefore the EN pin is tied to 1.8 V or 3.3 V.
The INT_N/OUT3 pin is used to notify the PMIC when a change in the TUSB320 I2C registers occurs. This pin is
an open drain output and requires an external pullup resistor. The pin should be pulled up to VDD using a 200-kΩ
resistor.
The Type-C port mode is determined by the state of the PORT pin. When the PORT pin is pulled high, the
TUSB320 device is in DFP mode. The Type-C port mode can also be controlled by the MODE_SELECT register
through the I2C interface.
The VBUS_DET pin must be connected through a 900-kΩ resistor to VBUS on the Type-C that is connected. This
large resistor is required to protect the TUSB320 device from large VBUS voltage that is possible in present day
systems. This resistor along with internal pulldown keeps the voltage observed by the TUSB320 device in the
recommended range.
The USB2 specification requires the bulk capacitance on VBUS based on UFP or DFP. When operating the
TUSB320 device in a DFP mode, a bulk capacitance of at least 120 µF is required. In this particular case, a 150-
µF capacitor was chosen.
8.2.2.3 Application Curves
Figure 17. Application Curve for DFP in I2C Mode
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8.2.3 UFP in I2C Mode
Figure 18 and Figure 19 show a Type-C configuration for the UFP mode.
5 V
VBUS
VBUS
PMIC
VPH
PORT
ID
VBUS
VBUS
2.7 - 5 V
VDD
CC1
CC2
VDD
ID
CC1
CC2
PORT
CC/Mode
Controller
CC/Mode
Controller
DP
DM
GPIOs
I2C
DP
DM
Processor
GPIOs
I2C
Processor
TUSB320
GND
TUSB320
Copyright © 2016, Texas Instruments Incorporated
Copyright © 2016, Texas Instruments Incorporated
Figure 18. TUSB320 in UFP Mode Supporting Default
Implementation
Figure 19. TUSB320 in UFP Mode Supporting Advanced
Power Delivery
Figure 20 shows the TUSB320 device configured as a UFP in I2C mode.
Optional power
TUSB320 with VBUS
less than 5.5V
DM
DP
VBUS
D1
I2C I/O
1.8V or 3.3V
VDD_5V
USB2
Device
DM
DP
100nF
VBUS
and PMIC
900K
B12
B11
A1
A2
A3
A4
200K
200K
4.7K
4.7K
VBUS_DET
B10
B9
PORT
CC1
INT#
INT_N/OUT3
CC1
CC2
A5
A6
B8
B7
B6
TUSB320LA
CC2
ID
A7
A8
B5
B4
B3
SCL
SDA
SCL/OUT2
SDA/OUT1
A9
A10
A11
1uF
B2
B1
A12
4.7K
Figure 20. UFP in I2C Mode Schematic
8.2.3.1 Design Requirements
For this design example, use the parameters listed in Table 16:
Table 16. Design Requirements for UFP in I2C Mode
DESIGN PARAMETER
VDD (2.75 V to 5 V)
VALUE
5 V
Mode (I2C or GPIO)
I2C address (0x67 or 0x47)
I2C: ADDR pin must be pulled down or pulled up
0x47: ADDR pin must be pulled low or tied to GND
UFP: PORT pin is pulled down
Type-C port type (UFP, DFP, or DRP)
26
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ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
Table 16. Design Requirements for UFP in I2C Mode (continued)
DESIGN PARAMETER
VALUE
Shutdown support
No
8.2.3.2 Detailed Design Procedure
The TUSB320 device supports a VDD in the range of 2.75 V to 5 V. In this particular case, VDD is set to 5 V. A
100-nF capacitor is placed near VDD. If VBUS is guaranteed to be less than 5.5 V, powering the TUSB320 device
through a diode can be implemented.
The TUSB320 device is placed into I2C mode by either pulling the ADDR pin high or low. In this case, the ADDR
pin is tied to GND which results in a I2C address of 0x47. The SDA and SCL must be pulled up to either 1.8 V or
3.3 V. When pulled up to 3.3 V, the VDD supply must be at least 3 V to keep from back-driving the I2C interface.
The TUSB320LA device can enter shutdown mode by pulling the EN_N pin high, which puts the TUSB320LA
device into a low power state. In this case, external control of the EN_N pin is not implemented and therefore the
EN_N pin is tied to GND. The TUSB320HA device can enter shutdown mode by pulling the EN pin low, which
puts the TUSB320HA device into a low power state. In this case, external control of the EN pin is not
implemented and therefore the EN pin is tied to 1.8 V or 3.3 V.
The INT_N/OUT3 pin is used to notify the PMIC when a change in the TUSB320 I2C registers occurs. This pin is
an open drain output and requires an external pullup resistor. The pin should be pulled up to VDD using a 200-kΩ
resistor.
The Type-C port mode is determined by the state of the PORT pin. When the PORT pin is pulled low, the
TUSB320 device is in UFP mode. The Type-C port mode can also be controlled by the MODE_SELECT register
through the I2C interface.
The VBUS_DET pin must be connected through a 900-kΩ resistor to VBUS on the Type-C that is connected. This
large resistor is required to protect the TUSB320 device from large VBUS voltage that is possible in present day
systems. This resistor along with internal pulldown keeps the voltage observed by the TUSB320 device in the
recommended range.
The USB2 specification requires the bulk capacitance on VBUS based on UFP or DFP. When operating the
TUSB320 device in a UFP mode, a bulk capacitance between 1 µF to 10 µF is required. In this particular case, a
1-µF capacitor was chosen.
8.2.3.3 Application Curves
Figure 21. Application Curve for UFP in I2C Mode
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8.3 Initialization Setup
8.3.1 TUSB320LA Initialization Procedure
1. System is powered off (device has no VDD). The TUSB320LA device is configured internally in UFP mode
with Rds on CC pins (dead battery).
2. VDD ramps – POR circuit. VDD must ramp within 25 ms or less. IO pull-up power rail (i.e. pull up on ID, INT,
SCL, SDA, ADDR, PORT) must ramp with VDD or lag after VDD
3. I2C supply ramps up.
.
4. The TUSB320LA device enters unattached mode and determines the voltage level from the PORT pin. This
determines the mode in which the TUSB320LA device operates (DFP, UFP, DRP).
5. The TUSB320LA device monitors the CC pins as a DFP and VBUS for attach as a UFP.
6. The TUSB320LA device enters active mode when attach has been successfully detected.
8.3.2 TUSB320HA Initialization Procedure
1. System is powered off (device has no VDD). The TUSB320HA device is configured internally in UFP mode
with Rds on CC pins (dead battery).
2. VDD ramps – POR circuit. VDD must ramp within 25 ms or less. IO pull-up power rail (i.e. pull up on ID, INT,
SCL, SDA, ADDR, PORT) must ramp with VDD or lag after VDD
3. I2C supply ramps up.
.
4. The TUSB320HA device enters unattached mode and determines the voltage level from the PORT pin. This
determines the mode in which the TUSB320HA device operates (DFP, UFP, DRP).
5. The TUSB320HA device monitors the CC pins as a DFP and VBUS for attach as a UFP.
6. The TUSB320HA device enters active mode when attach has been successfully detected.
9 Power Supply Recommendations
The TUSB320 device has a wide power supply range from 2.7 to 5 V. The TUSB320 device can be run off of a
system power such as a battery.
28
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ZHCSEB3D –OCTOBER 2015–REVISED MAY 2017
10 Layout
10.1 Layout Guidelines
1. An extra trace (or stub) is created when connecting between more than two points. A trace connecting pin A6
to pin B6 will create a stub because the trace also has to go to the USB Host. Ensure that:
–
–
A stub created by short on pin A6 (DP) and pin B6 (DP) at Type-C receptacle does not exceed 3.5 mm.
A stub created by short on pin A7 (DM) and pin B7 (DM) at Type-C receptacle does not exceed 3.5 mm.
2. A 100-nF capacitor should be placed as close as possible to the TUSB320 VDD pin.
10.2 Layout Example
SCL/OUT2
Figure 22. TUSB320 Layout
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11 器件和文档支持
11.1 相关链接
下面的表格列出了快速访问链接。类别包括技术文档、支持与社区资源、工具和软件,以及申请样片或购买产品的
快速链接。
表 17. 相关链接
器件
产品文件夹
请单击此处
请单击此处
样片与购买
请单击此处
请单击此处
技术文档
请单击此处
请单击此处
工具和软件
请单击此处
请单击此处
支持和社区
请单击此处
请单击此处
TUSB320LAI
TUSB320HAI
11.2 接收文档更新通知
要接收文档更新通知,请转至 TI.com 上的器件产品文件夹。单击右上角的通知我 进行注册,即可每周接收产品信
息更改摘要。有关更改的详细信息,请查看任何已修订文档中包含的修订历史记录。
11.3 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;请参阅 TI 的 《使用条款》。
TI E2E™ 在线社区 TI 的工程师对工程师 (E2E) 社区。此社区的创建目的在于促进工程师之间的协作。在
e2e.ti.com 中,您可以咨询问题、分享知识、拓展思路并与同行工程师一道帮助解决问题。
设计支持
TI 参考设计支持 可帮助您快速查找有帮助的 E2E 论坛、设计支持工具以及技术支持的联系信息。
11.4 商标
E2E is a trademark of Texas Instruments.
USB Type-C is a trademark of USB Implementers Forum.
All other trademarks are the property of their respective owners.
11.5 静电放电警告
这些装置包含有限的内置 ESD 保护。 存储或装卸时,应将导线一起截短或将装置放置于导电泡棉中,以防止 MOS 门极遭受静电损
伤。
11.6 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
12 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。这些数据如有变更,恕不另行通知
和修订此文档。如欲获取此产品说明书的浏览器版本,请参阅左侧的导航。
30
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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)
TUSB320HAIRWBR
TUSB320LAIRWBR
ACTIVE
ACTIVE
X2QFN
X2QFN
RWB
RWB
12
12
3000 RoHS & Green
3000 RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
HA
LA
NIPDAU
(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
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.
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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 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jun-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)
TUSB320HAIRWBR
TUSB320LAIRWBR
X2QFN
X2QFN
RWB
RWB
12
12
3000
3000
180.0
180.0
8.4
8.4
1.8
1.8
1.8
1.8
0.61
0.48
4.0
4.0
8.0
8.0
Q2
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jun-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)
TUSB320HAIRWBR
TUSB320LAIRWBR
X2QFN
X2QFN
RWB
RWB
12
12
3000
3000
213.0
210.0
191.0
185.0
35.0
35.0
Pack Materials-Page 2
PACKAGE OUTLINE
RWB0012A
X2QFN - 0.4 mm max height
SCALE 6.500
PLASTIC QUAD FLATPACK - NO LEAD
1.65
1.55
B
A
PIN 1 INDEX AREA
1.65
1.55
C
0.4 MAX
SEATING PLANE
0.05 C
2X 1.2
SYMM
(0.13)
TYP
0.05
0.00
6X 0.4
3
6
2
1
7
8
SYMM
2X
0.4
0.4
8X
0.2
12
9
0.25
0.15
12X
0.6
4X
0.4
0.07
0.05
C B A
C
4221631/B 07/2017
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.
www.ti.com
EXAMPLE BOARD LAYOUT
RWB0012A
X2QFN - 0.4 mm max height
PLASTIC QUAD FLATPACK - NO LEAD
(1.3)
6X (0.4)
9
12
4X (0.7)
2X (0.4)
1
8
SYMM
(1.5)
7
2
8X (0.5)
3
6
SYMM
(R0.05) TYP
12X (0.2)
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE:30X
0.05 MAX
ALL AROUND
0.05 MIN
ALL AROUND
METAL
SOLDER MASK
OPENING
EXPOSED METAL
EXPOSED METAL
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
NON SOLDER MASK
DEFINED
SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK DETAILS
4221631/B 07/2017
NOTES: (continued)
3. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271).
www.ti.com
EXAMPLE STENCIL DESIGN
RWB0012A
X2QFN - 0.4 mm max height
PLASTIC QUAD FLATPACK - NO LEAD
(1.3)
6X (0.4)
12
9
4X (0.67)
2X (0.4)
1
2
8
SYMM
(1.5)
7
8X
METAL
8X (0.5)
3
6
(R0.05) TYP
SYMM
12X (0.2)
SOLDER PASTE EXAMPLE
BASED ON 0.1 mm THICK STENCIL
PADS 1,2,7 & 8
96% PRINTED SOLDER COVERAGE BY AREA
SCALE:50X
4221631/B 07/2017
NOTES: (continued)
4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
www.ti.com
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