S56F8013MFA00ER2 [NXP]

IC,MICROCONTROLLER,16-BIT,56800E CPU,CMOS,QFP,32PIN,PLASTIC;
S56F8013MFA00ER2
型号: S56F8013MFA00ER2
厂家: NXP    NXP
描述:

IC,MICROCONTROLLER,16-BIT,56800E CPU,CMOS,QFP,32PIN,PLASTIC

文件: 总48页 (文件大小:291K)
中文:  中文翻译
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56F801  
Data Sheet  
Preliminary Technical Data  
56F800  
16-bit Digital Signal Controllers  
DSP56F801  
Rev. 17  
09/2007  
freescale.com  
Document Revision History  
Version History  
Rev. 17  
Description of Change  
Added revision history.  
Added this text to footnote 2 in Table 3-8: “However, the high pulse width does not have to  
be any particular percent of the low pulse width.”  
56F801 General Description  
• Up to 30 MIPS operation at 60MHz core frequency  
• Up to 40 MIPS operation at 80MHz core frequency  
• 8K × 16-bit words (16KB) Program Flash  
• 1K × 16-bit words (2KB) Program RAM  
• 2K × 16-bit words (4KB) Data Flash  
• 1K × 16-bit words (2KB) Data RAM  
• 2K × 16-bit words (4KB) Boot Flash  
• General Purpose Quad Timer  
• JTAG/OnCETM port for debugging  
• On-chip relaxation oscillator  
• DSP and MCU functionality in a unified,  
C-efficient architecture  
• MCU-friendly instruction set supports both DSP and  
controller functions: MAC, bit manipulation unit, 14  
addressing modes  
• Hardware DO and REP loops  
• 6-channel PWM Module  
• 11 shared GPIO  
• Two 4-channel, 12-bit ADCs  
• Serial Communications Interface (SCI)  
• Serial Peripheral Interface (SPI)  
• 48-pin LQFP Package  
6
PWM Outputs  
PWMA  
RESET  
Fault Input  
VCAPC  
2
V
V
V
V
SSA  
DD  
SS  
DDA  
IRQA  
6
4
5*  
Digital Reg  
JTAG/  
OnCE  
Port  
Analog Reg  
Low Voltage  
Supervisor  
A/D1  
A/D2  
VREF  
4
4
ADC  
Interrupt  
Controller  
Data ALU  
Address  
Generation  
Unit  
Bit  
Manipulation  
Unit  
Program Controller  
and  
Hardware Looping Unit  
16 x 16 + 36 36-Bit MAC  
Three 16-bit Input Registers  
Two 36-bit Accumulators  
Program Memory  
8188 x 16 Flash  
1024 x 16 SRAM  
PAB  
PLL  
PDB  
Quad Timer C  
16-Bit  
56800  
Core  
Clock Gen  
or Optional  
Internal  
GPIOB3/XTAL  
Quad Timer D  
or GPIO  
Boot Flash  
2048 x 16 Flash  
GPIOB2/EXTAL  
3
XDB2  
Relaxation Osc.  
CGDB  
Data Memory  
2048 x 16 Flash  
1024 x 16 SRAM  
XAB1  
XAB2  
INTERRUPT  
CONTROLS  
IPBB  
CONTROLS  
16  
SCI0  
or  
16  
COP/  
Watchdog  
GPIO  
2
4
COP RESET  
MODULE CONTROLS  
Applica-  
tion-Specific  
Memory &  
Peripherals  
IPBus Bridge  
(IPBB)  
SPI  
or  
GPIO  
ADDRESS BUS [8:0]  
DATA BUS [15:0]  
*includes TCS pin which is reserved for factory use and is tied to VSS  
56F801 Block Diagram  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
3
Part 1 Overview  
1.1 56F801 Features  
1.1.1  
Digital Signal Processing Core  
Efficient 16-bit 56800 family controller engine with dual Harvard architecture  
As many as 40 Million Instructions Per Second (MIPS) at 80MHz core frequency  
Single-cycle 16 × 16-bit parallel Multiplier-Accumulator (MAC)  
Two 36-bit accumulators including extension bits  
16-bit bidirectional barrel shifter  
Parallel instruction set with unique processor addressing modes  
Hardware DO and REP loops  
Three internal address buses and one external address bus  
Four internal data buses and one external data bus  
Instruction set supports both DSP and controller functions  
Controller style addressing modes and instructions for compact code  
Efficient C compiler and local variable support  
Software subroutine and interrupt stack with depth limited only by memory  
JTAG/OnCE debug programming interface  
1.1.2  
Memory  
Harvard architecture permits as many as three simultaneous accesses to Program and Data memory  
On-chip memory including a low-cost, high-volume Flash solution  
— 8K × 16 bit words of Program Flash  
— 1K × 16-bit words of Program RAM  
— 2K × 16-bit words of Data Flash  
— 1K × 16-bit words of Data RAM  
— 2K × 16-bit words of Boot Flash  
Programmable Boot Flash supports customized boot code and field upgrades of stored code through a  
variety of interfaces (JTAG, SPI)  
1.1.3  
Peripheral Circuits for 56F801  
Pulse Width Modulator (PWM) with six PWM outputs, two Fault inputs, fault-tolerant design with deadtime  
insertion; supports both center- and edge-aligned modes  
Two 12-bit, Analog-to-Digital Converters (ADCs), which support two simultaneous conversions with two  
4-multiplexed inputs; ADC and PWM modules can be synchronized  
General Purpose Quad Timer: Timer D with three pins (or three additional GPIO lines)  
Serial Communication Interface (SCI) with two pins (or two additional GPIO lines)  
Serial Peripheral Interface (SPI) with configurable four-pin port (or four additional GPIO lines)  
56F801 Technical Data, Rev. 17  
4
Freescale Semiconductor  
56F801 Description  
Eleven multiplexed General Purpose I/O (GPIO) pins  
Computer-Operating Properly (COP) watchdog timer  
One dedicated external interrupt pin  
External reset pin for hardware reset  
JTAG/On-Chip Emulation (OnCE™) for unobtrusive, processor speed-independent debugging  
Software-programmable, Phase Locked Loop-based frequency synthesizer for the controller core clock  
Oscillator flexibility between either an external crystal oscillator or an on-chip relaxation oscillator for  
lower system cost and two additional GPIO lines  
1.1.4  
Energy Information  
Fabricated in high-density CMOS with 5V-tolerant, TTL-compatible digital inputs  
Uses a single 3.3V power supply  
On-chip regulators for digital and analog circuitry to lower cost and reduce noise  
Wait and Stop modes available  
1.2 56F801 Description  
The 56F801 is a member of the 56800 core-based family of processors. It combines, on a single chip, the  
processing power of a DSP and the functionality of a microcontroller with a flexible set of peripherals to  
create an extremely cost-effective solution. Because of its low cost, configuration flexibility, and  
compact program code, the 56F801 is well-suited for many applications. The 56F801 includes many  
peripherals that are especially useful for applications such as motion control, smart appliances, steppers,  
encoders, tachometers, limit switches, power supply and control, automotive control, engine  
management, noise suppression, remote utility metering, and industrial control for power, lighting, and  
automation.  
The 56800 core is based on a Harvard-style architecture consisting of three execution units operating in  
parallel, allowing as many as six operations per instruction cycle. The microprocessor-style programming  
model and optimized instruction set allow straightforward generation of efficient, compact code for both  
DSP and MCU applications. The instruction set is also highly efficient for C compilers to enable rapid  
development of optimized control applications.  
The 56F801 supports program execution from either internal or external memories. Two data operands can  
be accessed from the on-chip Data RAM per instruction cycle. The 56F801 also provides one external  
dedicated interrupt lines and up to 11 General Purpose Input/Output (GPIO) lines, depending on peripheral  
configuration.  
The 56F801 controller includes 8K words (16-bit) of Program Flash and 2K words of Data Flash (each  
programmable through the JTAG port) with 1K words of both Program and Data RAM. A total of 2K  
words of Boot Flash is incorporated for easy customer-inclusion of field-programmable software routines  
that can be used to program the main Program and Data Flash memory areas. Both Program and Data Flash  
memories can be independently bulk erased or erased in page sizes of 256 words. The Boot Flash memory  
can also be either bulk or page erased.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
5
A key application-specific feature of the 56F801 is the inclusion of a Pulse Width Modulator (PWM)  
module. This modules incorporates six complementary, individually programmable PWM signal outputs  
to enhance motor control functionality. Complementary operation permits programmable dead-time  
insertion, and separate top and bottom output polarity control. The up-counter value is programmable to  
support a continuously variable PWM frequency. Both edge- and center-aligned synchronous pulse width  
control (0% to 100% modulation) are supported. The device is capable of controlling most motor types:  
ACIM (AC Induction Motors), both BDC and BLDC (Brush and Brushless DC motors), SRM and VRM  
(Switched and Variable Reluctance Motors), and stepper motors. The PWMs incorporate fault protection  
and cycle-by-cycle current limiting with sufficient output drive capability to directly drive standard  
opto-isolators. A “smoke-inhibit”, write-once protection feature for key parameters is also included. The  
PWM is double-buffered and includes interrupt control to permit integral reload rates to be programmable  
from 1 to 16. The PWM modules provide a reference output to synchronize the Analog-to-Digital  
Converters.  
The 56F801 incorporates an 8 input, 12-bit Analog-to-Digital Converter (ADC). A full set of standard  
programmable peripherals is provided that include a Serial Communications Interface (SCI), a Serial  
Peripheral Interface (SPI), and two Quad Timers. Any of these interfaces can be used as General-Purpose  
Input/Outputs (GPIO) if that function is not required. An on-chip relaxation oscillator provides flexibility  
in the choice of either on-chip or externally supplied frequency reference for chip timing operations.  
Application code is used to select which source is to be used.  
1.3 State of the Art Development Environment  
Processor ExpertTM (PE) provides a Rapid Application Design (RAD) tool that combines easy-to-use  
component-based software application creation with an expert knowledge system.  
The Code Warrior Integrated Development Environment is a sophisticated tool for code navigation,  
compiling, and debugging. A complete set of evaluation modules (EVMs) and development system cards  
will support concurrent engineering. Together, PE, Code Warrior and EVMs create a complete, scalable  
tools solution for easy, fast, and efficient development.  
56F801 Technical Data, Rev. 17  
6
Freescale Semiconductor  
Product Documentation  
1.4 Product Documentation  
The four documents listed in Table 1-1 are required for a complete description and proper design with the  
56F801. Documentation is available from local Freescale distributors, Freescale semiconductor sales  
offices, Freescale Literature Distribution Centers, or online at www.freescale.com.  
Table 1-1 56F801 Chip Documentation  
Topic  
Description  
Order Number  
56800E  
Family Manual  
Detailed description of the 56800 family architecture, and  
16-bit core processor and the instruction set  
56800EFM  
DSP56F801/803/805/807  
User’s Manual  
Detailed description of memory, peripherals, and interfaces  
of the 56F801, 56F803, 56F805, and 56F807  
DSP56F801-7UM  
DSP56F801  
56F801E  
56F801  
Technical Data Sheet  
Electrical and timing specifications, pin descriptions, and  
package descriptions (this document)  
56F801  
Errata  
Details any chip issues that might be present  
1.5 Data Sheet Conventions  
This data sheet uses the following conventions:  
OVERBAR  
This is used to indicate a signal that is active when pulled low. For example, the RESET pin is  
active when low.  
“asserted”  
“deasserted”  
Examples:  
A high true (active high) signal is high or a low true (active low) signal is low.  
A high true (active high) signal is low or a low true (active low) signal is high.  
Voltage1  
Signal/Symbol  
Logic State  
True  
Signal State  
Asserted  
PIN  
PIN  
PIN  
PIN  
VIL/VOL  
False  
Deasserted  
Asserted  
VIH/VOH  
VIH/VOH  
VIL/VOL  
True  
False  
Deasserted  
1. Values for VIL, VOL, VIH, and VOH are defined by individual product specifications.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
7
 
Part 2 Signal/Connection Descriptions  
2.1 Introduction  
The input and output signals of the 56F801 are organized into functional groups, as shown in Table 2-1  
and as illustrated in Figure 2-1. In Table 2-2 through Table 2-12, each table row describes the signal or  
signals present on a pin.  
Table 2-1 Functional Group Pin Allocations  
Number of  
Pins  
Detailed  
Description  
Functional Group  
Power (VDD or VDDA  
)
5
6
Table 2-2  
Table 2-3  
Ground (VSS or VSSA  
)
Supply Capacitors  
PLL and Clock  
2
2
2
7
4
Table 2-4  
Table 2-5  
Table 2-6  
Table 2-7  
Table 2-8  
Interrupt and Program Control  
Pulse Width Modulator (PWM) Port  
Serial Peripheral Interface (SPI) Port1  
Serial Communications Interface (SCI) Port1  
Analog-to-Digital Converter (ADC) Port  
Quad Timer Module Port  
2
Table 2-9  
9
3
6
Table 2-10  
Table 2-11  
Table 2-12  
JTAG/On-Chip Emulation (OnCE)  
1. Alternately, GPIO pins  
56F801 Technical Data, Rev. 17  
8
Freescale Semiconductor  
 
Introduction  
VDD  
VSS  
Power Port  
Ground Port  
Power Port  
Ground Port  
4
5*  
1
VDDA  
VSSA  
1
PWMA0-5  
FAULTA0  
VCAPC  
Other  
Supply  
Port  
2
6
1
EXTAL (GPIOB2)  
XTAL (GPIOB3)  
PLL and Clock  
or GPIO  
1
1
56F801  
1
1
1
1
SCLK (GPIOB4)  
MOSI (GPIOB5)  
MISO (GPIOB6)  
SS (GPIOB7)  
SPI Port  
or GPIO  
1
1
TXD0 (GPIOB0)  
RXD0 (GPIOB1)  
SCI0 Port  
or GPIO  
8
1
ANA0-7  
VREF  
ADCA Port  
Quad  
Timer D  
or GPIO  
3
TD0-2 (GPIOA0-2)  
TCK  
TMS  
TDI  
1
1
1
1
1
1
1
1
IRQA  
Interrupt/  
Program  
Control  
JTAG/OnCE™  
TDO  
TRST  
DE  
Port  
RESET  
*includes TCS pin which is reserved for factory use and is tied to VSS  
1
Figure 2-1 56F801 Signals Identified by Functional Group  
1. Alternate pin functionality is shown in parenthesis.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
9
2.2 Power and Ground Signals  
Table 2-2 Power Inputs  
No. of Pins  
Signal Name  
VDD  
Signal Description  
4
Power—These pins provide power to the internal structures of the chip, and should all be  
attached to VDD.  
1
VDDA  
Analog Power—This pin is a dedicated power pin for the analog portion of the chip and  
should be connected to a low noise 3.3V supply.  
Table 2-3 Grounds  
No. of Pins  
Signal Name  
VSS  
Signal Description  
4
GND—These pins provide grounding for the internal structures of the chip, and should all  
be attached to VSS.  
1
1
VSSA  
TCS  
Analog Ground—This pin supplies an analog ground.  
TCS—This Schmitt pin is reserved for factory use and must be tied to VSS for normal use.  
In block diagrams, this pin is considered an additional VSS.  
Table 2-4 Supply Capacitors and VPP  
No.of  
Pins  
Signal  
Name  
Signal  
Type  
State  
Signal Description  
During Reset  
2
VCAPC Supply  
Supply  
VCAPC—Connect each pin to a 2.2 μFor greater bypass capacitor in order  
to bypass the core logic voltage regulator (required for proper chip  
operation). For more information, refer to Section 5.2.  
2.3 Clock and Phase Locked Loop Signals  
Table 2-5 PLL and Clock  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State  
During Reset  
Signal Description  
1
EXTAL  
Input  
Input  
External Crystal Oscillator Input—This input should be connected to an  
8MHz external crystal or ceramic resonator. For more information, please  
refer to Section 3.5.  
GPIOB2  
Input/  
Output  
Input  
Port B GPIO—This multiplexed pin is a General Purpose I/O (GPIO) pin that  
can be programmed as an input or output pin. This I/O can be utilized when  
using the on-chip relaxation oscillator so the EXTAL pin is not needed.  
56F801 Technical Data, Rev. 17  
10  
Freescale Semiconductor  
Interrupt and Program Control Signals  
Table 2-5 PLL and Clock (Continued)  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State  
During Reset  
Signal Description  
1
XTAL  
Output  
Chip-  
Crystal Oscillator Output—This output should be connected to an 8MHz  
external crystal or ceramic resonator. For more information, please refer to  
Section 3.5.  
driven  
Input  
This pin can also be connected to an external clock source. For more  
information, please refer to Section 3.5.3.  
GPIOB3  
Input/  
Output  
Port B GPIO—This multiplexed pin is a General Purpose I/O (GPIO) pin that  
can be programmed as an input or output pin. This I/O can be utilized when  
using the on-chip relaxation oscillator so the XTAL pin is not needed.  
2.4 Interrupt and Program Control Signals  
Table 2-6 Interrupt and Program Control Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State  
During Reset  
Signal Description  
1
IRQA  
Input  
(Schmitt)  
Input  
Input  
External Interrupt Request A—The IRQA input is a synchronized  
external interrupt request that indicates that an external device is  
requesting service. It can be programmed to be level-sensitive or  
negative-edge- triggered.  
1
RESET  
Input  
(Schmitt)  
Reset—This input is a direct hardware reset on the processor. When  
RESET is asserted low, the controller is initialized and placed in the  
Reset state. A Schmitt trigger input is used for noise immunity. When the  
RESET pin is deasserted, the initial chip operating mode is latched from  
the EXTBOOT pin. The internal reset signal will be deasserted  
synchronous with the internal clocks, after a fixed number of internal  
clocks.  
To ensure complete hardware reset, RESET and TRST should be  
asserted together. The only exception occurs in a debugging  
environment when a hardware device reset is required and it is  
necessary not to reset the OnCE/JTAG module. In this case, assert  
RESET, but do not assert TRST.  
2.5 Pulse Width Modulator (PWM) Signals  
Table 2-7 Pulse Width Modulator (PWMA) Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State During  
Reset  
Signal Description  
6
1
PWMA0-5  
FAULTA0  
Output  
Tri-stated  
Input  
PWMA0-5— These are six PWMA output pins.  
Input  
FAULTA0— This fault input pin is used for disabling selected PWMA  
(Schmitt)  
outputs in cases where fault conditions originate off-chip.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
11  
2.6 Serial Peripheral Interface (SPI) Signals  
Table 2-8 Serial Peripheral Interface (SPI) Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
StateDuring  
Reset  
Signal Description  
1
MISO  
Input/Output  
Input  
SPI Master In/Slave Out (MISO)—This serial data pin is an input to  
a master device and an output from a slave device. The MISO line of  
a slave device is placed in the high-impedance state if the slave  
device is not selected.  
Input/Output  
GPIOB6  
MOSI  
Input  
Input  
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that can  
be individually programmed as input or output pin.  
After reset, the default state is MISO.  
1
Input/Output  
Input/Output  
SPI Master Out/Slave In (MOSI)—This serial data pin is an output  
from a master device and an input to a slave device. The master  
device places data on the MOSI line a half-cycle before the clock  
edge that the slave device uses to latch the data.  
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that can  
be individually programmed as input or output pin.  
GPIOB5  
SCLK  
Input  
Input  
After reset, the default state is MOSI.  
1
Input/Output  
Input/Output  
SPI Serial Clock—In master mode, this pin serves as an output,  
clocking slaved listeners. In slave mode, this pin serves as the data  
clock input.  
GPIOB4  
Input  
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that can  
be individually programmed as an input or output pin.  
After reset, the default state is SCLK.  
1
SS  
Input  
Input  
Input  
SPI Slave Select—In master mode, this pin is used to arbitrate  
multiple masters. In slave mode, this pin is used to select the slave.  
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that can  
be individually programmed as an input or output pin.  
GPIOB7  
Input/Output  
After reset, the default state is SS.  
56F801 Technical Data, Rev. 17  
12  
Freescale Semiconductor  
Serial Communications Interface (SCI) Signals  
2.7 Serial Communications Interface (SCI) Signals  
Table 2-9 Serial Communications Interface (SCI0) Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State During  
Reset  
Signal Description  
1
TXD0  
Output  
Input  
Input  
Transmit Data (TXD0)—SCI0 transmit data output  
GPIOB0  
Input/Output  
Port B GPIO—This pin is a General Purpose I/O (GPIO) pin that  
can be individually programmed as an input or output pin.  
After reset, the default state is SCI output.  
1
RXD0  
Input  
Input  
Input  
Receive Data (RXD0)—SCI0 receive data input  
GPIOB1  
Input/Output  
Port B GPIO—This pin is a General Purpose I/O (GPIO) pin that  
can be individually programmed as an input or output pin.  
After reset, the default state is SCI input.  
2.8 Analog-to-Digital Converter (ADC) Signals  
Table 2-10 Analog to Digital Converter Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State During  
Reset  
Signal Description  
4
4
1
ANA0-3  
ANA4-7  
VREF  
Input  
Input  
Input  
Input  
Input  
Input  
ANA0-3—Analog inputs to ADC, channel 1  
ANA4-7—Analog inputs to ADC, channel 2  
VREF—Analog reference voltage for ADC. Must be set to  
VDDA-0.3V for optimal performance.  
2.9 Quad Timer Module Signals  
Table 2-11 Quad Timer Module Signals  
No. of  
Pins  
Signal  
Name  
State During  
Signal Type  
Signal Description  
Reset  
3
TD0-2  
Input/Output  
Input/Output  
Input  
TD0-2—Timer D Channel 0-2  
GPIOA0-2  
Input  
Port A GPIO—This pin is a General Purpose I/O (GPIO) pin that  
can be individually programmed as an input or output pin.  
After reset, the default state is the quad timer input.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
13  
2.10 JTAG/OnCE  
Table 2-12 JTAG/On-Chip Emulation (OnCE) Signals  
No. of  
Pins  
Signal  
Name  
Signal  
Type  
State During  
Reset  
Signal Description  
1
TCK  
Input  
Input, pulled Test Clock Input—This input pin provides a gated clock to synchronize the  
(Schmitt) low internally test logic and shift serial data to the JTAG/OnCE port. The pin is connected  
internally to a pull-down resistor.  
1
TMS  
Input  
Input, pulled Test Mode Select Input—This input pin is used to sequence the JTAG  
(Schmitt) high internally TAP controller’s state machine. It is sampled on the rising edge of TCK and  
has an on-chip pull-up resistor.  
Note: Always tie the TMS pin to VDD through a 2.2K resistor.  
1
1
1
TDI  
TDO  
TRST  
Input  
Input, pulled Test Data Input—This input pin provides a serial input data stream to the  
(Schmitt) high internally JTAG/OnCE port. It is sampled on the rising edge of TCK and has an  
on-chip pull-up resistor.  
Output  
Tri-stated  
Test Data Output—This tri-statable output pin provides a serial output data  
stream from the JTAG/OnCE port. It is driven in the Shift-IR and Shift-DR  
controller states, and changes on the falling edge of TCK.  
Input  
Input, pulled Test Reset—As an input, a low signal on this pin provides a reset signal to  
(Schmitt) high internally the JTAG TAP controller. To ensure complete hardware reset, TRST should  
be asserted whenever RESET is asserted. The only exception occurs in a  
debugging environment when a hardware device reset is required and it is  
necessary not to reset the OnCE/JTAG module. In this case, assert RESET,  
but do not assert TRST.  
Note: For normal operation, connect TRST directly to VSS. If the design is to be  
used in a debugging environment, TRST may be tied to VSS through a 1K resistor.  
1
DE  
Output  
Output  
Debug Event—DE provides a low pulse on recognized debug events.  
Part 3 Specifications  
3.1 General Characteristics  
The 56F801 is fabricated in high-density CMOS with 5-volt tolerant TTL-compatible digital inputs. The  
term “5-volt tolerant” refers to the capability of an I/O pin, built on a 3.3V compatible process technology,  
to withstand a voltage up to 5.5V without damaging the device. Many systems have a mixture of devices  
designed for 3.3V and 5V power supplies. In such systems, a bus may carry both 3.3V and 5V- compatible  
I/O voltage levels (a standard 3.3V I/O is designed to receive a maximum voltage of 3.3V ± 10% during  
normal operation without causing damage). This 5V-tolerant capability therefore offers the power savings  
of 3.3V I/O levels while being able to receive 5V levels without being damaged.  
Absolute maximum ratings given in Table 3-1 are stress ratings only, and functional operation at the  
maximum is not guaranteed. Stress beyond these ratings may affect device reliability or cause permanent  
damage to the device.  
56F801 Technical Data, Rev. 17  
14  
Freescale Semiconductor  
General Characteristics  
The 56F801 DC and AC electrical specifications are preliminary and are from design simulations. These  
specifications may not be fully tested or guaranteed at this early stage of the product life cycle. Finalized  
specifications will be published after complete characterization and device qualifications have been  
completed.  
CAUTION  
This device contains protective circuitry to guard against  
damage due to high static voltage or electrical fields.  
However, normal precautions are advised to avoid  
application of any voltages higher than maximum rated  
voltages to this high-impedance circuit. Reliability of  
operation is enhanced if unused inputs are tied to an  
appropriate voltage level.  
Table 3-1 Absolute Maximum Ratings  
Characteristic  
Symbol  
VDD  
VIN  
Min  
VSS – 0.3  
VSS – 0.3  
- 0.3  
Max  
VSS + 4.0  
VSS + 5.5V  
0.3  
Unit  
V
Supply voltage  
All other input voltages, excluding Analog inputs  
Voltage difference VDD to VDDA  
V
ΔVDD  
ΔVSS  
VIN  
V
Voltage difference VSS to VSSA  
- 0.3  
0.3  
V
Analog inputs ANA0-7 and VREF  
VSSA– 0.3  
VSSA– 0.3  
VDDA+ 0.3  
VSSA+ 3.0  
10  
V
Analog inputs EXTAL, XTAL  
VIN  
V
Current drain per pin excluding VDD, VSS, & PWM ouputs  
I
mA  
Table 3-2 Recommended Operating Conditions  
Characteristic  
Supply voltage, digital  
Symbol  
VDD  
Min  
3.0  
Typ  
3.3  
3.3  
-
Max  
3.6  
3.6  
0.1  
Unit  
V
Supply Voltage, analog  
VDDA  
ΔVDD  
ΔVSS  
VREF  
TA  
3.0  
V
Voltage difference VDD to VDDA  
Voltage difference VSS to VSSA  
-0.1  
-0.1  
2.7  
V
-
0.1  
V
ADC reference voltage1  
3.3V  
85  
V
Ambient operating temperature  
1. VREF must be 0.3 below VDDA  
–40  
°C  
.
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
15  
6
Table 3-3 Thermal Characteristics  
Value  
Characteristic  
Symbol  
Unit  
Notes  
Comments  
48-pin LQFP  
Junction to ambient  
RθJA  
50.6  
°C/W  
2
Natural convection  
Junction to ambient (@1m/sec)  
RθJMA  
47.4  
39.1  
°C/W  
°C/W  
2
Junction to ambient  
Natural convection  
Four layer board (2s2p)  
Four layer board (2s2p)  
RθJMA  
(2s2p)  
1,2  
Junction to ambient (@1m/sec)  
Junction to case  
RθJMA  
RθJC  
ΨJT  
37.9  
17.3  
°C/W  
°C/W  
°C/W  
W
1,2  
3
Junction to center of case  
I/O pin power dissipation  
Power dissipation  
1.2  
4, 5  
P I/O  
User Determined  
P D = (IDD x VDD + P I/O  
(TJ - TA) /RθJA  
P D  
)
W
Junction to center of case  
PDMAX  
W
7
Notes:  
1. Theta-JA determined on 2s2p test boards is frequently lower than would be observed in an application.  
Determined on 2s2p thermal test board.  
2. Junction to ambient thermal resistance, Theta-JA (RθJA) was simulated to be equivalent to the JEDEC  
specification JESD51-2 in a horizontal configuration in natural convection. Theta-JA was also simulated on  
a thermal test board with two internal planes (2s2p where s is the number of signal layers and p is the number  
of planes) per JESD51-6 and JESD51-7. The correct name for Theta-JA for forced convection or with the  
non-single layer boards is Theta-JMA.  
3. Junction to case thermal resistance, Theta-JC (RθJC ), was simulated to be equivalent to the measured values  
using the cold plate technique with the cold plate temperature used as the "case" temperature. The basic cold  
plate measurement technique is described by MIL-STD 883D, Method 1012.1. This is the correct thermal  
metric to use to calculate thermal performance when the package is being used with a heat sink.  
4. Thermal Characterization Parameter, Psi-JT (ΨJT ), is the "resistance" from junction to reference point  
thermocouple on top center of case as defined in JESD51-2. ΨJT is a useful value to use to estimate junction  
temperature in steady state customer environments.  
5. Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site  
(board) temperature, ambient temperature, air flow, power dissipation of other components on the board, and  
board thermal resistance.  
6. See Section 5.1 from more details on thermal design considerations.  
7. TJ = Junction Temperature  
TA = Ambient Temperature  
56F801 Technical Data, Rev. 17  
16  
Freescale Semiconductor  
DC Electrical Characteristics  
3.2 DC Electrical Characteristics  
Table 3-4 DC Electrical Characteristics  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Input high voltage (XTAL/EXTAL)  
Symbol  
VIHC  
Min  
2.25  
0
Typ  
30  
Max  
2.75  
0.5  
3.6  
0.8  
5.5  
0.8  
5.5  
0.8  
1
Unit  
V
Input low voltage (XTAL/EXTAL)  
VILC  
V
Input high voltage [GPIOB(2:3)]1  
Input low voltage [GPIOB(2:3)]1  
VIH[GPIOB(2:3)]  
VIL[GPIOB(2:3)]  
VIHS  
2.0  
-0.3  
2.2  
-0.3  
2.0  
-0.3  
-1  
V
V
Input high voltage (Schmitt trigger inputs)2  
V
Input low voltage (Schmitt trigger inputs)2  
Input high voltage (all other digital inputs)  
VILS  
V
VIH  
V
Input low voltage (all other digital inputs)  
VIL  
V
Input current high (pullup/pulldown resistors disabled, VIN=VDD  
)
IIH  
μA  
μA  
μA  
μA  
μA  
μA  
KΩ  
μA  
μA  
μA  
Input current low (pullup/pulldown resistors disabled, VIN=VSS  
Input current high (with pullup resistor, VIN=VDD  
Input current low (with pullup resistor, VIN=VSS  
Input current high (with pulldown resistor, VIN=VDD  
)
IIL  
-1  
1
)
IIHPU  
-1  
1
)
IILPU  
-210  
20  
-50  
180  
1
)
IIHPD  
Input current low (with pulldown resistor, VIN=VSS  
Nominal pullup or pulldown resistor value  
Output tri-state current low  
Output tri-state current high  
3
)
IILPD  
-1  
RPU, RPD  
IOZL  
-10  
-10  
-15  
10  
10  
15  
IOZH  
IIHA  
Input current high (analog inputs, VIN=VDDA  
)
3
IILA  
-15  
15  
μA  
Input current low (analog inputs, VIN=VSSA  
)
Output High Voltage (at IOH  
)
VOH  
VOL  
IOH  
VDD – 0.7  
8
0.4  
V
Output Low Voltage (at IOL  
Output source current  
Output sink current  
)
4
V
mA  
mA  
mA  
mA  
pF  
pF  
IOL  
4
PWM pin output source current4  
IOHP  
IOLP  
CIN  
10  
16  
PWM pin output sink current5  
Input capacitance  
Output capacitance  
COUT  
12  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
17  
Table 3-4 DC Electrical Characteristics (Continued)  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
6
VDD supply current  
Run7 (80MHz operation)  
IDDT  
120  
102  
96  
130  
111  
102  
mA  
mA  
mA  
Run7 (60MHz operation)  
Wait8  
Stop  
62  
70  
mA  
V
Low Voltage Interrupt, external power supply9  
Low Voltage Interrupt, internal power supply10  
Power on Reset11  
VEIO  
VEIC  
2.4  
2.7  
3.0  
2.0  
2.2  
1.7  
2.4  
2.0  
V
V
VPOR  
1. Since the GPIOB[2:3] signals are shared with the XTAL/EXTAL function, these inputs are not 5.5 volt tolerant.  
2. Schmitt Trigger inputs are: FAULTA0, IRQA, RESET, TCS, TCK, TMS, TDI, and TRST.  
3. Analog inputs are: ANA[0:7], XTAL and EXTAL. Specification assumes ADC is not sampling.  
4. PWM pin output source current measured with 50% duty cycle.  
5. PWM pin output sink current measured with 50% duty cycle.  
6. IDDT = IDD + IDDA (Total supply current for VDD + VDDA  
)
7. Run (operating) IDD measured using 8MHz clock source. All inputs 0.2V from rail; outputs unloaded. All ports configured as  
inputs; measured with all modules enabled.  
8. Wait IDD measured using external square wave clock source (fosc = 8MHz) into XTAL; all inputs 0.2V from rail; no DC loads;  
less than 50pF on all outputs. CL = 20pF on EXTAL; all ports configured as inputs; EXTAL capacitance linearly affects wait IDD  
measured with PLL enabled.  
;
9. This low voltage interrupt monitors the VDDA external power supply. VDDA is generally connected to the same potential as VDD  
via separate traces. If VDDA drops below VEIO, an interrupt is generated. Functionality of the device is guaranteed under transient  
conditions when VDDA>VEIO (between the minimum specified VDD and the point when the VEIO interrupt is generated).  
10. This low voltage interrupt monitors the internally regulated core power supply. If the output from the internal voltage is regulator  
drops below VEIC, an interrupt is generated. Since the core logic supply is internally regulated, this interrupt will not be generated  
unless the external power supply drops below the minimum specified value (3.0V).  
11. Poweron reset occurs whenever the internally regulated 2.5V digital supply drops below 1.5V typical. While power is ramping  
up, this signal remains active for as long as the internal 2.5V is below 1.5V typical no matter how long the ramp up rate is. The  
internally regulated voltage is typically 100 mV less than VDD during ramp up until 2.5V is reached, at which time it self regulates.  
56F801 Technical Data, Rev. 17  
18  
Freescale Semiconductor  
 
AC Electrical Characteristics  
160  
120  
80  
IDD Analog  
IDD Total  
IDD Digital  
40  
0
10  
20  
60  
70  
80  
50  
30  
40  
Freq. (MHz)  
Figure 3-1 Maximum Run IDD vs. Frequency (see Note 7. in Table 3-15)  
3.3 AC Electrical Characteristics  
Timing waveforms in Section 3.3 are tested using the VIL and VIH levels specified in the DC Characteristics  
table. In Figure 3-2 the levels of VIH and VIL for an input signal are shown.  
Low  
VIL  
High  
VIH  
90%  
50%  
10%  
Input Signal  
Midpoint1  
Fall Time  
Note: The midpoint is VIL + (VIH – VIL)/2.  
Rise Time  
Figure 3-2 Input Signal Measurement References  
Figure 3-3 shows the definitions of the following signal states:  
Active state, when a bus or signal is driven, and enters a low impedance state.  
Tri-stated, when a bus or signal is placed in a high impedance state.  
Data Valid state, when a signal level has reached VOL or VOH.  
Data Invalid state, when a signal level is in transition between VOL and VOH.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
19  
 
 
Data2 Valid  
Data2  
Data1 Valid  
Data1  
Data3 Valid  
Data3  
Data  
Tri-stated  
Data Invalid State  
Data Active  
Data Active  
Figure 3-3 Signal States  
3.4 Flash Memory Characteristics  
Table 3-5 Flash Memory Truth Table  
XE1  
YE2  
SE3  
OE4  
PROG5  
ERASE6  
MAS17  
NVSTR8  
Mode  
Standby  
Read  
L
L
H
H
L
L
H
L
L
L
L
H
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
H
H
H
H
Word Program  
Page Erase  
Mass Erase  
L
H
H
H
H
H
L
1. X address enable, all rows are disabled when XE = 0  
2. Y address enable, YMUX is disabled when YE = 0  
3. Sense amplifier enable  
4. Output enable, tri-state Flash data out bus when OE = 0  
5. Defines program cycle  
6. Defines erase cycle  
7. Defines mass erase cycle, erase whole block  
8. Defines non-volatile store cycle  
Table 3-6 IFREN Truth Table  
Mode  
IFREN = 1  
IFREN = 0  
Read  
Read information block  
Program information block  
Erase information block  
Erase both block  
Read main memory block  
Program main memory block  
Erase main memory block  
Erase main memory block  
Word program  
Page erase  
Mass erase  
56F801 Technical Data, Rev. 17  
20  
Freescale Semiconductor  
Flash Memory Characteristics  
Table 3-7 Flash Timing Parameters  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Program time  
Symbol  
Min  
20  
Typ  
Max  
Unit  
us  
Figure  
Figure 3-4  
Figure 3-5  
Figure 3-6  
Tprog*  
Erase time  
20  
ms  
Terase*  
Mass erase time  
100  
10,000  
10  
ms  
Tme*  
ECYC  
Endurance1  
20,000  
30  
cycles  
years  
Data Retention1  
DRET  
The following parameters should only be used in the Manual Word Programming Mode  
PROG/ERASE to NVSTR set  
up time  
5
5
us  
us  
Figure 3-4,  
Figure 3-5,  
Figure 3-6  
Tnvs*  
NVSTR hold time  
Figure 3-4,  
Figure 3-5  
Tnvh*  
NVSTR hold time (mass erase)  
NVSTR to program set up time  
Recovery time  
100  
10  
1
us  
us  
us  
Figure 3-6  
Figure 3-4  
Tnvh1*  
Tpgs*  
Trcv*  
Figure 3-4,  
Figure 3-5,  
Figure 3-6  
Cumulative program  
HV period2  
3
ms  
Figure 3-4  
Thv  
Program hold time3  
Figure 3-4  
Figure 3-4  
Figure 3-4  
Tpgh  
Tads  
Tadh  
Address/data set up time3  
Address/data hold time3  
1. One cycle is equal to an erase program and read.  
2. Thv is the cumulative high voltage programming time to the same row before next erase. The same address cannot be  
programmed twice before next erase.  
3. Parameters are guaranteed by design in smart programming mode and must be one cycle or greater.  
*The Flash interface unit provides registers for the control of these parameters.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
21  
IFREN  
XADR  
XE  
Tadh  
YADR  
YE  
DIN  
Tads  
PROG  
NVSTR  
Tnvs  
Tprog  
Tpgh  
Tpgs  
Tnvh  
Trcv  
Thv  
Figure 3-4 Flash Program Cycle  
IFREN  
XADR  
XE  
YE=SE=OE=MAS1=0  
ERASE  
NVSTR  
Tnvs  
Tnvh  
Trcv  
Terase  
Figure 3-5 Flash Erase Cycle  
56F801 Technical Data, Rev. 17  
22  
Freescale Semiconductor  
External Clock Operation  
IFREN  
XADR  
XE  
MAS1  
YE=SE=OE=0  
ERASE  
NVSTR  
Tnvs  
Tnvh1  
Trcv  
Tme  
Figure 3-6 Flash Mass Erase Cycle  
3.5 External Clock Operation  
The 56F801 device clock is derived from either 1) an internal crystal oscillator circuit working in  
conjunction with an external crystal, 2) an external frequency source, or 3) an on-chip relaxation oscillator.  
To generate a reference frequency using the internal crystal oscillator circuit, a reference crystal external  
to the chip must be connected between the EXTAL and XTAL pins. Paragraphs 3.5.1 and 3.5.4 describe  
these methods of clocking. Whichever type of clock derivation is used provides a reference signal to a  
phase-locked loop (PLL) within the 56F801. In turn, the PLL generates a master reference frequency that  
determines the speed at which chip operations occur.  
Application code can be set to change the frequency source between the relaxation oscillator and crystal  
oscillator or external source, and power down the relaxation oscillator if desired. Selection of which clock  
is used is determined by setting the PRECS bit in the PLLCR (phase-locked loop control register) word  
(bit 2). If the bit is set to 1, the external crystal oscillator circuit is selected. If the bit is set to 0, the internal  
relaxation oscillator is selected, and this is the default value of the bit when power is first applied.  
3.5.1  
Crystal Oscillator  
The internal oscillator is also designed to interface with a parallel-resonant crystal resonator in the  
frequency range specified for the external crystal in Table 3-10. Figure 3-7 shows a recommended crystal  
oscillator circuit. Follow the crystal supplier’s recommendations when selecting a crystal, since crystal  
parameters determine the component values required to provide maximum stability and reliable start-up.  
The crystal and associated components should be mounted as close as possible to the EXTAL and XTAL  
pins to minimize output distortion and start-up stabilization time. The internal 56F80x oscillator circuitry  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
23  
 
 
is designed to have no external load capacitors present. As shown in Figure 3-8 no external load capacitors  
should be used.  
The 56F80x components internally are modeled as a parallel resonant oscillator circuit to provide a  
capacitive load on each of the oscillator pins (XTAL and EXTAL) of 10pF to 13pF over temperature and  
process variations. Using a typical value of internal capacitance on these pins of 12pF and a value of 3pF  
as a typical circuit board trace capacitance the parallel load capacitance presented to the crystal is 9pF as  
determined by the following equation:  
CL1 * CL2  
CL1 + CL2  
12 * 12  
12 + 12  
CL =  
+ Cs =  
+ 3 = 6 + 3 = 9pF  
This is the value load capacitance that should be used when selecting a crystal and determining the actual  
frequency of operation of the crystal oscillator circuit.  
Recommended External Crystal  
EXTAL XTAL  
Parameters:  
Rz = 1 to 3 MΩ  
Rz  
fc = 8MHz (optimized for 8MHz)  
fc  
Figure 3-7 External Crystal Oscillator Circuit  
3.5.2  
Ceramic Resonator  
It is also possible to drive the internal oscillator with a ceramic resonator, assuming the overall system  
design can tolerate the reduced signal integrity. In Figure 3-8, a typical ceramic resonator circuit is  
shown. Refer to supplier’s recommendations when selecting a ceramic resonator and associated  
components. The resonator and components should be mounted as close as possible to the EXTAL and  
XTAL pins. The internal 56F80x oscillator circuitry is designed to have no external load capacitors  
present. As shown in Figure 3-7 no external load capacitors should be used.  
Recommended Ceramic Resonator  
Parameters:  
Rz = 1 to 3 MΩ  
EXTAL XTAL  
Rz  
fc = 8MHz (optimized for 8MHz)  
fc  
Figure 3-8 Connecting a Ceramic Resonator  
Note: Freescale recommends only two terminal ceramic resonators vs. three terminal resonators  
(which contain an internal bypass capacitor to ground).  
56F801 Technical Data, Rev. 17  
24  
Freescale Semiconductor  
 
 
External Clock Operation  
3.5.3  
External Clock Source  
The recommended method of connecting an external clock is given in Figure 3-9. The external clock  
source is connected to XTAL and the EXTAL pin is grounded.  
56F801  
XTAL  
EXTAL  
V
External Clock  
SS  
Figure 3-9 Connecting an External Clock Signal  
3
Table 3-8 External Clock Operation Timing Requirements  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C  
Characteristic  
Symbol  
fosc  
Min  
0
Typ  
Max  
Unit  
MHz  
ns  
Frequency of operation (external clock driver)1  
Clock Pulse Width3, 4  
802  
tPW  
6.25  
1. See Figure 3-9 for details on using the recommended connection of an external clock driver.  
2. May not exceed 60MHz for the DSP56F801FA60 device.  
3. The high or low pulse width must be no smaller than 6.25ns or the chip will not function. However, the high pulse width  
does not have to be any particular percent of the low pulse width.  
4. Parameters listed are guaranteed by design.  
VIH  
External  
Clock  
90%  
50%  
10%  
90%  
50%  
10%  
VIL  
tPW  
Note: The midpoint is VIL + (VIH – VIL)/2.  
tPW  
Figure 3-10 External Clock Timing  
3.5.4  
Use of On-Chip Relaxation Oscillator  
An internal relaxation oscillator can supply the reference frequency when an external frequency source or  
crystal are not used. During a 56F801 boot or reset sequence, the relaxation oscillator is enabled by default,  
and the PRECS bit in the PLLCR word is set to 0 (Section 3.5). If an external oscillator is connected, the  
relaxation oscillator can be deselected instead by setting the PRECS bit in the PLLCR to 1. When this  
occurs, the PRECSS bit in the PLLSR (prescaler clock select status register) data word also sets to 1. If a  
changeover between internal and external oscillators is required at startup, internal device circuits  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
25  
 
compensate for any asynchronous transitions between the two clock signals so that no glitches occur in the  
resulting master clock to the chip. When changing clocks, the user must ensure that the clock source is not  
switched until the desired clock is enabled and stable.  
To compensate for variances in the device manufacturing process, the accuracy of the relaxation oscillator  
can be incrementally adjusted to within ±0.25% of 8MHz by trimming an internal capacitor. Bits 0-7 of  
the IOSCTL (internal oscillator control) word allow the user to set in an additional offset (trim) to this  
preset value to increase or decrease capacitance. The default value of this trim is 128 units, making the  
power-up default capacitor size 432 units. Each unit added or deleted changes the output frequency by  
about 0.2%, allowing incremental adjustment until the desired frequency accuracy is achieved.  
Table 3-9 Relaxation Oscillator Characteristics  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C  
Characteristic  
Frequency Accuracy1  
Symbol  
Δf  
Min  
Typ  
+2  
Max  
+5  
Unit  
%
%/oC  
%/V  
%
Frequency Drift over Temp  
Frequency Drift over Supply  
Δf/Δt  
+0.1  
Δf/ΔV  
ΔfT  
0.1  
Trim Accuracy  
+0.25  
1. Over full temperature range.  
56F801 Technical Data, Rev. 17  
26  
Freescale Semiconductor  
External Clock Operation  
8.2  
8.1  
8.0  
7.9  
7.8  
7.7  
7.6  
-40  
-25  
-5  
15  
35  
55  
75  
85  
Temperature (oC)  
Figure 3-11 Typical Relaxation Oscillator Frequency vs. Temperature  
o
(Trimmed to 8MHz @ 25 C)  
11  
10  
9
8
7
6
5
0
10 20 30 40 50 60 70 80 90 A0 B0 C0 D0 E0 F0  
o
Figure 3-12 Typical Relaxation Oscillator Frequency vs. Trim Value @ 25 C  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
27  
3.5.5  
Phase Locked Loop Timing  
Table 3-10 PLL Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C  
Characteristic  
Symbol  
Min  
4
Typ  
8
Max  
Unit  
MHz  
MHz  
ms  
External reference crystal frequency for the PLL1  
PLL output frequency2  
fosc  
10  
803  
f
out/2  
tplls  
40  
PLL stabilization time4 0o to +85oC  
PLL stabilization time4 -40o to 0oC  
10  
tplls  
100  
200  
ms  
1. An externally supplied reference clock should be as free as possible from any phase jitter for the PLL to work  
correctly. The PLL is optimized for 8MHz input crystal.  
2. ZCLK may not exceed 80MHz. For additional information on ZCLK and fout/2, please refer to the OCCS chapter in the  
User Manual. ZCLK = fop  
3. Will not exceed 60MHz for the DSP56F801FA60 device.  
4. This is the minimum time required after the PLL setup is changed to ensure reliable operation.  
56F801 Technical Data, Rev. 17  
28  
Freescale Semiconductor  
Reset, Stop, Wait, Mode Select, and Interrupt Timing  
3.6 Reset, Stop, Wait, Mode Select, and Interrupt Timing  
1, 5  
Table 3-11 Reset, Stop, Wait, Mode Select, and Interrupt Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Symbol  
Min  
Max  
Unit  
See  
RESET Assertion to Address, Data and Control  
Signals High Impedance  
tRAZ  
21  
ns  
Figure 3-13  
Minimum RESET Assertion Duration2  
OMR Bit 6 = 0  
OMR Bit 6 = 1  
tRA  
Figure 3-13  
Figure 3-13  
275,000T  
128T  
ns  
ns  
RESET De-assertion to First External Address  
Output  
tRDA  
33T  
34T  
ns  
Edge-sensitive Interrupt Request Width  
tIRW  
tIDM  
1.5T  
15T  
ns  
ns  
Figure 3-14  
Figure 3-15  
IRQA, IRQB Assertion to External Data Memory  
Access Out Valid, caused by first instruction  
execution in the interrupt service routine  
IRQA, IRQB Assertion to General Purpose Output  
Valid, caused by first instruction execution in the  
interrupt service routine  
tIG  
16T  
ns  
Figure 3-15  
Figure 3-16  
IRQA Low to First Valid Interrupt Vector Address  
Out recovery from Wait State3  
tIRI  
13T  
2T  
ns  
ns  
IRQA Width Assertion to Recover from Stop State4  
tIW  
tIF  
Figure 3-17  
Figure 3-17  
Delay from IRQA Assertion to Fetch of first  
instruction (exiting Stop)  
OMR Bit 6 = 0  
275,000T  
12T  
ns  
ns  
OMR Bit 6 = 1  
Duration for Level Sensitive IRQA Assertion to  
Cause the Fetch of First IRQA Interrupt Instruction  
(exiting Stop)  
OMR Bit 6 = 0  
OMR Bit 6 = 1  
tIRQ  
Figure 3-18  
Figure 3-18  
275,000T  
12T  
ns  
ns  
Delay from Level Sensitive IRQA Assertion to First  
Interrupt Vector Address Out Valid (exiting Stop)  
OMR Bit 6 = 0  
tII  
275,000T  
12T  
ns  
ns  
OMR Bit 6 = 1  
1. In the formulas, T = clock cycle. For an operating frequency of 80MHz, T = 12.5ns.  
2. Circuit stabilization delay is required during reset when using an external clock or crystal oscillator in two cases:  
• After power-on reset  
• When recovering from Stop state  
3. The minimum is specified for the duration of an edge-sensitive IRQA interrupt required to recover from the Stop state. This is not  
the minimum required so that the IRQA interrupt is accepted.  
4. The interrupt instruction fetch is visible on the pins only in Mode 3.  
5. Parameters listed are guaranteed by design.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
29  
RESET  
tRA  
tRAZ  
tRDA  
First Fetch  
A0–A15,  
D0–D15  
PS, DS,  
RD, WR  
First Fetch  
Figure 3-13 Asynchronous Reset Timing  
IRQA,  
IRQB  
tIRW  
Figure 3-14 External Interrupt Timing (Negative-Edge-Sensitive)  
A0–A15,  
PS, DS,  
RD, WR  
First Interrupt Instruction Execution  
tIDM  
IRQA,  
IRQB  
a) First Interrupt Instruction Execution  
General  
Purpose  
I/O Pin  
tIG  
IRQA,  
IRQB  
b) General Purpose I/O  
Figure 3-15 External Level-Sensitive Interrupt Timing  
56F801 Technical Data, Rev. 17  
30  
Freescale Semiconductor  
Reset, Stop, Wait, Mode Select, and Interrupt Timing  
IRQA,  
IRQB  
tIRI  
A0–A15,  
PS, DS,  
RD, WR  
First Interrupt Vector  
Instruction Fetch  
Figure 3-16 Interrupt from Wait State Timing  
tIW  
IRQA  
tIF  
A0–A15,  
PS, DS,  
RD, WR  
First Instruction Fetch  
Not IRQA Interrupt Vector  
Figure 3-17 Recovery from Stop State Using Asynchronous Interrupt Timing  
tIRQ  
IRQA  
tII  
A0–A15  
PS, DS,  
RD, WR  
First IRQA Interrupt  
Instruction Fetch  
Figure 3-18 Recovery from Stop State Using IRQA Interrupt Service  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
31  
3.7 Serial Peripheral Interface (SPI) Timing  
1
Table 3-12 SPI Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Symbol  
Min  
Max  
Unit  
See Figure  
Cycle time  
Master  
Slave  
tC  
Figures 3-19, 3-20,  
3-21, 3-22  
50  
25  
ns  
ns  
Enable lead time  
Master  
Slave  
tELD  
tELG  
tCH  
tCL  
Figure 3-22  
Figure 3-22  
25  
ns  
ns  
Enable lag time  
Master  
Slave  
100  
ns  
ns  
Clock (SCK) high time  
Master  
Slave  
Figures 3-19, 3-20,  
3-21, 3-22  
17.6  
12.5  
ns  
ns  
Clock (SCK) low time  
Master  
Slave  
Figures 3-19, 3-20,  
3-21, 3-22  
24.1  
25  
ns  
ns  
Data setup time required for inputs  
Master  
Slave  
tDS  
tDH  
tA  
Figures 3-19, 3-20,  
3-21, 3-22  
20  
0
ns  
ns  
Data hold time required for inputs  
Master  
Slave  
Figures 3-19, 3-20,  
3-21, 3-22  
0
2
ns  
ns  
Access time (time to data active from  
high-impedance state)  
Slave  
Figure 3-22  
Figure 3-22  
4.8  
3.7  
15  
ns  
ns  
Disable time (hold time to high-impedance state)  
Slave  
tD  
15.2  
Data Valid for outputs  
Master  
Slave (after enable edge)  
tDV  
Figures 3-19, 3-20,  
3-21, 3-22  
4.5  
20.4  
ns  
ns  
Data invalid  
Master  
Slave  
tDI  
tR  
tF  
Figures 3-19, 3-20,  
3-21, 3-22  
0
0
ns  
ns  
Rise time  
Master  
Slave  
Figures 3-19, 3-20,  
3-21, 3-22  
11.5  
10.0  
ns  
ns  
Fall time  
Master  
Slave  
Figures 3-19, 3-20,  
3-21, 3-22  
9.7  
9.0  
ns  
ns  
1. Parameters listed are guaranteed by design.  
56F801 Technical Data, Rev. 17  
32  
Freescale Semiconductor  
Serial Peripheral Interface (SPI) Timing  
SS  
(Input)  
SS is held High on master  
tC  
tR  
tF  
tCL  
SCLK (CPOL = 0)  
(Output)  
tF  
tCH  
tCL  
tR  
SCLK (CPOL = 1)  
(Output)  
tDH  
tCH  
tDS  
MISO  
(Input)  
MSB in  
tDI  
Bits 14–1  
LSB in  
tDI(ref)  
tDV  
MOSI  
(Output)  
Master MSB out  
tF  
Bits 14–1  
Master LSB out  
tR  
Figure 3-19 SPI Master Timing (CPHA = 0)  
SS  
(Input)  
SS is held High on master  
tF  
tC  
tR  
tCL  
SCLK (CPOL = 0)  
(Output)  
tCH  
tCL  
tF  
SCLK (CPOL = 1)  
(Output)  
tCH  
tDS  
tR  
tDH  
MISO  
(Input)  
MSB in  
tDI  
Bits 14–1  
LSB in  
tDV  
tDV(ref)  
MOSI  
(Output)  
Master MSB out  
tF  
Bits 14– 1  
Master LSB out  
tR  
Figure 3-20 SPI Master Timing (CPHA = 1)  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
33  
SS  
(Input)  
tC  
tF  
tELG  
tCL  
tR  
SCLK (CPOL = 0)  
(Input)  
tCH  
tCL  
tELD  
SCLK (CPOL = 1)  
(Input)  
tCH  
tA  
tR  
tF  
tD  
MISO  
(Output)  
Slave MSB out  
Bits 14–1  
tDV  
Slave LSB out  
tDI  
tDS  
tDI  
tDH  
MOSI  
(Input)  
MSB in  
Bits 14–1  
LSB in  
Figure 3-21 SPI Slave Timing (CPHA = 0)  
SS  
(Input)  
tC  
tF  
tCL  
tR  
SCLK (CPOL = 0)  
(Input)  
tCH  
tCL  
tELG  
tELD  
SCLK (CPOL = 1)  
(Input)  
tDV  
tR  
tCH  
tD  
tF  
tA  
MISO  
(Output)  
Slave MSB out  
Bits 14–1  
tDV  
Slave LSB out  
tDI  
tDS  
tDH  
MOSI  
(Input)  
MSB in  
Bits 14–1  
LSB in  
Figure 3-22 SPI Slave Timing (CPHA = 1)  
56F801 Technical Data, Rev. 17  
34  
Freescale Semiconductor  
Quad Timer Timing  
3.8 Quad Timer Timing  
1, 2  
Table 3-13 Timer Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Timer input period  
Symbol  
PIN  
Min  
4T+6  
2T+3  
2T  
Max  
Unit  
ns  
Timer input high/low period  
Timer output period  
PINHL  
POUT  
ns  
ns  
Timer output high/low period  
POUTHL  
1T  
ns  
1. In the formulas listed, T = clock cycle. For 80MHz operation, T = 12.5ns.  
2. Parameters listed are guaranteed by design.  
Timer Inputs  
PIN  
PINHL  
PINHL  
Timer Outputs  
POUT  
POUTHL  
POUTHL  
Figure 3-23 Timer Timing  
3.9 Serial Communication Interface (SCI) Timing  
4
Table 3-14 SCI Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF  
Characteristic  
Symbol  
Min  
Max  
Unit  
Baud Rate1  
BR  
(fMAX*2.5)/(80)  
Mbps  
RXD2 Pulse Width  
TXD3 Pulse Width  
RXDPW  
TXDPW  
0.965/BR  
1.04/BR  
1.04/BR  
ns  
ns  
0.965/BR  
1. fMAX is the frequency of operation of the system clock in MHz.  
2. The RXD pin in SCI0 is named RXD0 and the RXD pin in SCI1 is named RXD1.  
3. The TXD pin in SCI0 is named TXD0 and the TXD pin in SCI1 is named TXD1.  
4. Parameters listed are guaranteed by design.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
35  
RXD  
SCI receive  
data pin  
RXDPW  
(Input)  
Figure 3-24 RXD Pulse Width  
TXD  
SCI receive  
data pin  
TXDPW  
(Input)  
Figure 3-25 TXD Pulse Width  
3.10 Analog-to-Digital Converter (ADC) Characteristics  
Table 3-15 ADC Characteristics  
Characteristic  
ADC input voltages  
Symbol  
Min  
Typ  
Max  
Unit  
01  
12  
VREF  
12  
2
VADCIN  
V
Resolution  
RES  
INL  
Bits  
Integral Non-Linearity3  
Differential Non-Linearity  
LSB4  
LSB4  
+/- 4  
+/- 5  
+/- 1  
DNL  
+/- 0.9  
Monotonicity  
GUARANTEED  
ADC internal clock5  
Conversion range  
fADIC  
RAD  
tADC  
0.5  
VSSA  
5
MHz  
V
6
VDDA  
tAIC cycles6  
tAIC cycles6  
Conversion time  
Sample time  
tADS  
1
pF6  
Input capacitance  
CADI  
EGAIN  
5
Gain Error (transfer gain)5  
Offset Voltage5  
1.00  
+10  
1.10  
+230  
1.15  
+325  
VOFFSET  
mV  
56F801 Technical Data, Rev. 17  
36  
Freescale Semiconductor  
Analog-to-Digital Converter (ADC) Characteristics  
Table 3-15 ADC Characteristics (Continued)  
Characteristic  
Symbol  
THD  
Min  
55  
Typ  
60  
Max  
Unit  
dB  
dB  
bit  
Total Harmonic Distortion5  
Signal-to-Noise plus Distortion5  
Effective Number of Bits5  
SINAD  
ENOB  
SFDR  
54  
56  
8.5  
60  
9.5  
65  
Spurious Free Dynamic Range5  
Bandwidth  
dB  
BW  
100  
50  
KHz  
mA  
ADC Quiescent Current (both ADCs)  
IADC  
VREF Quiescent Current (both ADCs)  
IVREF  
12  
16.5  
mA  
1. For optimum ADC performance, keep the minimum VADCIN value > 250mV. Inputs less than 250mV volts may convert to  
a digital output code of 0 or cause erroneous conversions.  
2. VREF must be equal to or less than VDDA - 0.3V and must be greater than 2.7V.  
3. Measured in 10-90% range.  
4. LSB = Least Significant Bit.  
5. Guaranteed by characterization.  
6. t  
AIC  
= 1/f  
ADIC  
ADC analog input  
1
3
2
4
1. Parasitic capacitance due to package, pin to pin, and pin to package base coupling. (1.8pf)  
2. Parasitic capacitance due to the chip bond pad, ESD protection devices and signal routing. (2.04pf)  
3. Equivalent resistance for the ESD isolation resistor and the channel select mux. (500 ohms)  
4. Sampling capacitor at the sample and hold circuit. Capacitor 4 is normally disconnected from the input and is only connected to it at  
sampling time. (1pf)  
Figure 3-26 Equivalent Analog Input Circuit  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
37  
3.11 JTAG Timing  
1, 3  
Table 3-16 JTAG Timing  
Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF  
Characteristic  
TCK frequency of operation2  
Symbol  
fOP  
Min  
DC  
100  
50  
Max  
10  
Unit  
MHz  
ns  
TCK cycle time  
tCY  
TCK clock pulse width  
TMS, TDI data setup time  
TMS, TDI data hold time  
TCK low to TDO data valid  
TCK low to TDO tri-state  
TRST assertion time  
DE assertion time  
tPW  
ns  
tDS  
0.4  
1.2  
ns  
tDH  
ns  
tDV  
26.6  
23.5  
ns  
tTS  
ns  
tTRST  
tDE  
50  
ns  
8T  
ns  
1. Timing is both wait state and frequency dependent. For the values listed, T = clock cycle. For 80MHz  
operation, T = 12.5ns.  
2. TCK frequency of operation must be less than 1/8 the processor rate.  
3. Parameters listed are guaranteed by design.  
tCY  
tPW  
tPW  
VIH  
VM  
VIL  
VM  
TCK  
(Input)  
VM = VIL + (VIH – VIL)/2  
Figure 3-27 Test Clock Input Timing Diagram  
56F801 Technical Data, Rev. 17  
38  
Freescale Semiconductor  
JTAG Timing  
TCK  
(Input)  
tDS  
tDH  
TDI  
TMS  
(Input)  
Input Data Valid  
tDV  
TDO  
(Output)  
Output Data Valid  
tTS  
TDO  
(Output)  
tDV  
TDO  
(Output)  
Output Data Valid  
Figure 3-28 Test Access Port Timing Diagram  
TRST  
(Input)  
tTRST  
Figure 3-29 TRST Timing Diagram  
DE  
tDE  
Figure 3-30 OnCE—Debug Event  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
39  
Part 4 Packaging  
4.1 Package and Pin-Out Information 56F801  
This section contains package and pin-out information for the 48-pin LQFP configuration of the 56F801.  
ORIENTATION  
TDO  
TD1  
ANA4  
ANA3  
VREF  
ANA2  
ANA1  
ANA0  
FAULTA0  
VSS  
MARK  
PIN 37  
TD2  
PIN 1  
/SS  
MISO  
MOSI  
SCLK  
TXDO  
VSS  
VDD  
VDD  
VSSA  
PIN 25  
RXD0  
DE  
VDDA  
PIN 13  
RESET  
Figure 4-1 Top View, 56F801 48-pin LQFP Package  
56F801 Technical Data, Rev. 17  
40  
Freescale Semiconductor  
Package and Pin-Out Information 56F801  
Table 4-1 56F801 Pin Identification by Pin Number  
Pin No.  
Signal Name  
Pin No.  
Signal Name  
Pin No.  
Signal Name  
Pin No.  
Signal Name  
1
2
TD0  
TD1  
13  
14  
TCS  
TCK  
25  
26  
RESET  
VDDA  
37  
38  
ANA5  
ANA6  
3
4
TD2  
SS  
15  
16  
17  
18  
19  
20  
21  
22  
TMS  
IREQA  
TDI  
27  
28  
29  
30  
31  
32  
33  
34  
VSSA  
VDD  
39  
40  
41  
42  
43  
44  
45  
46  
ANA7  
PWMA0  
VCAPC1  
VDD  
5
MISO  
MOSI  
SCLK  
TXD0  
VSS  
VSS  
6
VCAPC2  
VSS  
FAULTA0  
ANA0  
ANA1  
ANA2  
VREF  
7
VSS  
8
VDD  
PWMA1  
PWMA2  
PWMA3  
9
EXTAL  
XTAL  
10  
VDD  
11  
12  
RXD0  
DE  
23  
24  
TDO  
35  
36  
ANA3  
ANA4  
47  
48  
PWMA4  
PWMA5  
TRST  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
41  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER  
ASME Y14.5M, 1994.  
4X  
0.200 AB T-U Z  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DATUM PLANE AB IS LOCATED AT BOTTOM  
OF LEAD AND IS COINCIDENT WITH THE  
LEAD WHERE THE LEAD EXITS THE PLASTIC  
BODY AT THE BOTTOM OF THE PARTING  
LINE.  
DETAIL Y  
9
A
P
A1  
48  
4. DATUMS T, U, AND Z TO BE DETERMINED AT  
DATUM PLANE AB.  
37  
5. DIMENSIONS S AND V TO BE DETERMINED  
AT SEATING PLANE AC.  
1
36  
6. DIMENSIONS A AND B DO NOT INCLUDE  
MOLD PROTRUSION. ALLOWABLE  
PROTRUSION IS 0.250 PER SIDE. DIMENSIONS  
AANDBDOINCLUDEMOLDMISMATCHAND  
ARE DETERMINED AT DATUM PLANE AB.  
7. DIMENSION D DOES NOT INCLUDE DAMBAR  
PROTRUSION. DAMBAR PROTRUSION  
SHALL NOT CAUSE THE D DIMENSION TO  
EXCEED 0.350.  
T
U
B
V
AE  
AE  
B1  
V1  
12  
25  
8. MINIMUM SOLDER PLATE THICKNESS  
SHALL BE 0.0076.  
9. EXACT SHAPE OF EACH CORNER IS  
OPTIONAL.  
13  
24  
Z
MILLIMETERS  
DIM MIN MAX  
S1  
A
A1  
B
7.000 BSC  
3.500 BSC  
7.000 BSC  
T, U, Z  
S
B1  
C
D
E
F
G
H
J
K
L
M
N
P
3.500 BSC  
DETAIL Y  
4X  
1.400 1.600  
0.170 0.270  
1.350 1.450  
0.170 0.230  
0.500 BSC  
0.050 0.150  
0.090 0.200  
0.500 0.700  
0.200 AC T-U  
Z
0.080 AC  
G
AB  
AC  
0
7
°
°
12 REF  
°
0.090 0.160  
0.250 BSC  
0.150 0.250  
9.000 BSC  
4.500 BSC  
9.000 BSC  
4.500 BSC  
0.200 REF  
1.000 REF  
R
S
S1  
V
V1  
W
AA  
AD  
°
M
BASE METAL  
TOP & BOTTOM  
R
N
J
E
C
H
F
D
M
0.080  
AC T-U Z  
SECTION AE-AE  
W
°
L
K
DETAIL AD  
CASE 932-03  
ISSUE F  
AA  
Figure 4-2 48-pin LQFP Mechanical Information  
Please see www.freescale.com for the most current case outline.  
56F801 Technical Data, Rev. 17  
42  
Freescale Semiconductor  
Thermal Design Considerations  
Part 5 Design Considerations  
5.1 Thermal Design Considerations  
An estimation of the chip junction temperature, T , in °C can be obtained from the equation:  
J
Equation 1:TJ = TA + (PD × RθJA  
)
Where:  
TA = ambient temperature °C  
RθJA = package junction-to-ambient thermal resistance °C/W  
PD = power dissipation in package  
Historically, thermal resistance has been expressed as the sum of a junction-to-case thermal resistance and  
a case-to-ambient thermal resistance:  
Equation 2:RθJA = RθJC + RθCA  
Where:  
RθJA = package junction-to-ambient thermal resistance °C/W  
RθJC = package junction-to-case thermal resistance °C/W  
RθCA = package case-to-ambient thermal resistance °C/W  
R
is device-related and cannot be influenced by the user. The user controls the thermal environment to  
θJC  
change the case-to-ambient thermal resistance, R  
. For example, the user can change the air flow around  
θCA  
the device, add a heat sink, change the mounting arrangement on the Printed Circuit Board (PCB), or  
otherwise change the thermal dissipation capability of the area surrounding the device on the PCB. This  
model is most useful for ceramic packages with heat sinks; some 90% of the heat flow is dissipated through  
the case to the heat sink and out to the ambient environment. For ceramic packages, in situations where  
the heat flow is split between a path to the case and an alternate path through the PCB, analysis of the  
device thermal performance may need the additional modeling capability of a system level thermal  
simulation tool.  
The thermal performance of plastic packages is more dependent on the temperature of the PCB to which  
the package is mounted. Again, if the estimations obtained from R  
the thermal performance is adequate, a system level model may be appropriate.  
do not satisfactorily answer whether  
θJA  
Definitions:  
A complicating factor is the existence of three common definitions for determining the junction-to-case  
thermal resistance in plastic packages:  
Measure the thermal resistance from the junction to the outside surface of the package (case) closest to the  
chip mounting area when that surface has a proper heat sink. This is done to minimize temperature variation  
across the surface.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
43  
Measure the thermal resistance from the junction to where the leads are attached to the case. This definition  
is approximately equal to a junction to board thermal resistance.  
Use the value obtained by the equation (TJ – TT)/PD where TT is the temperature of the package case  
determined by a thermocouple.  
The thermal characterization parameter is measured per JESD51-2 specification using a 40-gauge type T  
thermocouple epoxied to the top center of the package case. The thermocouple should be positioned so  
that the thermocouple junction rests on the package. A small amount of epoxy is placed over the  
thermocouple junction and over about 1mm of wire extending from the junction. The thermocouple wire  
is placed flat against the package case to avoid measurement errors caused by cooling effects of the  
thermocouple wire.  
When heat sink is used, the junction temperature is determined from a thermocouple inserted at the  
interface between the case of the package and the interface material. A clearance slot or hole is normally  
required in the heat sink. Minimizing the size of the clearance is important to minimize the change in  
thermal performance caused by removing part of the thermal interface to the heat sink. Because of the  
experimental difficulties with this technique, many engineers measure the heat sink temperature and then  
back-calculate the case temperature using a separate measurement of the thermal resistance of the  
interface. From this case temperature, the junction temperature is determined from the junction-to-case  
thermal resistance.  
5.2 Electrical Design Considerations  
CAUTION  
This device contains protective circuitry to guard against  
damage due to high static voltage or electrical fields.  
However, normal precautions are advised to avoid  
application of any voltages higher than maximum rated  
voltages to this high-impedance circuit. Reliability of  
operation is enhanced if unused inputs are tied to an  
appropriate voltage level.  
Use the following list of considerations to assure correct operation:  
Provide a low-impedance path from the board power supply to each VDD pin on the controller, and from the  
board ground to each VSS (GND) pin.  
The minimum bypass requirement is to place 0.1 μF capacitors positioned as close as possible to the  
package supply pins. The recommended bypass configuration is to place one bypass capacitor on each of  
the ten VDD/VSS pairs, including VDDA/VSSA. Ceramic and tantalum capacitors tend to provide better  
performance tolerances.  
Ensure that capacitor leads and associated printed circuit traces that connect to the chip VDD and VSS (GND)  
pins are less than 0.5 inch per capacitor lead.  
56F801 Technical Data, Rev. 17  
44  
Freescale Semiconductor  
Electrical Design Considerations  
Bypass the VDD and VSS layers of the PCB with approximately 100 μF, preferably with a high-grade  
capacitor such as a tantalum capacitor.  
Because the controller’s output signals have fast rise and fall times, PCB trace lengths should be minimal.  
Consider all device loads as well as parasitic capacitance due to PCB traces when calculating capacitance.  
This is especially critical in systems with higher capacitive loads that could create higher transient currents  
in the VDD and GND circuits.  
Take special care to minimize noise levels on the VREF, VDDA and VSSA pins.  
Designs that utilize the TRST pin for JTAG port or OnCE module functionality (such as development or  
debugging systems) should allow a means to assert TRST whenever RESET is asserted, as well as a means  
to assert TRST independently of RESET. TRST must be asserted at power up for proper operation. Designs  
that do not require debugging functionality, such as consumer products, TRST should be tied low.  
Because the Flash memory is programmed through the JTAG/OnCE port, designers should provide an  
interface to this port to allow in-circuit Flash programming.  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
45  
Part 6 Ordering Information  
Table 6-1 lists the pertinent information needed to place an order. Consult a Freescale Semiconductor  
sales office or authorized distributor to determine availability and to order parts.  
Table 6-1 56F801 Ordering Information  
Ambient  
Frequency  
(MHz)  
Supply  
Voltage  
Pin  
Count  
Part  
Package Type  
Order Number  
56F801  
56F801  
3.0–3.6 V  
3.0–3.6 V  
Low Profile Plastic Quad Flat Pack (LQFP)  
Low Profile Plastic Quad Flat Pack (LQFP)  
48  
48  
80  
60  
DSP56F801FA80  
DSP56F801FA60  
56F801  
56F801  
3.0–3.6 V  
3.0–3.6 V  
Low Profile Plastic Quad Flat Pack (LQFP)  
Low Profile Plastic Quad Flat Pack (LQFP)  
48  
48  
80  
60  
DSP56F801FA80E*  
DSP56F801FA60E*  
*This package is RoHS compliant.  
56F801 Technical Data, Rev. 17  
46  
Freescale Semiconductor  
 
Electrical Design Considerations  
56F801 Technical Data, Rev. 17  
Freescale Semiconductor  
47  
How to Reach Us:  
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www.freescale.com  
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support@freescale.com  
USA/Europe or Locations Not Listed:  
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+1-800-521-6274 or +1-480-768-2130  
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support@freescale.com  
RoHS-compliant and/or Pb-free versions of Freescale products have the  
functionality and electrical characteristics of their non-RoHS-compliant  
and/or non-Pb-free counterparts. For further information, see  
http://www.freescale.com or contact your Freescale sales representative.  
Japan:  
Freescale Semiconductor Japan Ltd.  
Headquarters  
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Information in this document is provided solely to enable system and  
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no express or implied copyright licenses granted hereunder to design or  
fabricate any integrated circuits or integrated circuits based on the  
information in this document.  
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Freescale Semiconductor reserves the right to make changes without further  
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particular purpose, nor does Freescale Semiconductor assume any liability  
arising out of the application or use of any product or circuit, and specifically  
disclaims any and all liability, including without limitation consequential or  
incidental damages. “Typical” parameters that may be provided in Freescale  
Semiconductor data sheets and/or specifications can and do vary in different  
applications and actual performance may vary over time. All operating  
parameters, including “Typicals”, must be validated for each customer  
application by customer’s technical experts. Freescale Semiconductor does  
not convey any license under its patent rights nor the rights of others.  
Freescale Semiconductor products are not designed, intended, or authorized  
for use as components in systems intended for surgical implant into the body,  
or other applications intended to support or sustain life, or for any other  
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regarding the design or manufacture of the part.  
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For Literature Requests Only:  
Freescale Semiconductor Literature Distribution Center  
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Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor,  
Inc. All other product or service names are the property of their respective owners.  
This product incorporates SuperFlash® technology licensed from SST.  
© Freescale Semiconductor, Inc. 2005. All rights reserved.  
DSP56F801  
Rev. 17  
09/2007  

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