The DSP56F801 is a 16-bit digital signal controller combining a high-efficiency 56800-family DSP core with microcontroller features, on-chip Flash and RAM, and a rich set of analog and timing peripherals suited for motor control, power conversion, sensing and embedded signal processing applications. The device supports high instruction throughput with hardware multiply-accumulate units, multiple internal buses for concurrent memory accesses, and integrated development/debug support via JTAG/OnCE for rapid application development and field upgrades.
Features
- 16-bit 56800-family DSP core with single-cycle 16×16 MAC and dual 36-bit accumulators for high-performance signal processing.
- Up to 40MIPS operation at 80MHz core frequency (30MIPS at 60MHz typical) for demanding control and DSP tasks.
- On-chip memory: Program Flash, Data Flash, Boot Flash, Program RAM and Data RAM for compact embedded systems and field update capability.
- Peripherals include six-output complementary PWM with dead-time insertion, two 4-channel 12-bit ADCs, SPI and SCI serial interfaces, general-purpose quad timers and watchdog/COP.
- Low-voltage supervisor, internal regulators, selectable clock sources (PLL or relaxation oscillator), JTAG/OnCE debug port and 11 multiplexed GPIO lines for flexible I/O and system control.
PINOUT
| Pin No. |
Signal Name |
Pin No. |
Signal Name |
Pin No. |
Signal Name |
Pin No. |
Signal Name |
| 1 |
TD0 |
13 |
TCS |
25 |
RESET |
37 |
ANA5 |
| 2 |
TD1 |
14 |
TCK |
26 |
VDDA |
38 |
ANA6 |
| 3 |
TD2 |
15 |
TMS |
27 |
VSSA |
39 |
ANA7 |
| 4 |
SS |
16 |
IREQA |
28 |
VDD |
40 |
PWMA0 |
| 5 |
MISO |
17 |
TDI |
29 |
VSS |
41 |
VCAPC1 |
| 6 |
MOSI |
18 |
VCAPC2 |
30 |
FAULTA0 |
42 |
VDD |
| 7 |
SCLK |
19 |
Vss |
31 |
ANA0 |
43 |
Vss |
| 8 |
TXD0 |
20 |
VDD |
32 |
ANA1 |
44 |
PWMA1 |
| 9 |
Vss |
21 |
EXTAL |
33 |
ANA2 |
45 |
PWMA2 |
| 10 |
VDD |
22 |
XTAL |
34 |
VREF |
46 |
PWMA3 |
| 11 |
RXD0 |
23 |
TDO |
35 |
ANA3 |
47 |
PWMA4 |
| 12 |
DE |
24 |
TRST |
36 |
ANA4 |
48 |
PWMA5 |
Specifications
| Parameter |
Value |
| Core |
16-bit5 6800-family |
| Performance |
Up to 40MIPS@80MHz / 30MIPS@60MHz |
| Program Flash |
8K×16words (16KB) |
| Program RAM |
1K×16words (2KB) |
| Data Flash |
2K×16words (4KB) |
| Data RAM |
1K×16words (2KB) |
| Boot Flash |
2K×16words (4KB) |
| MAC |
16×16→36-bit single-cycle MAC with two 36-bit accumulators |
| ADCs |
Two 4-channel 12bit ADCs (supports simultaneous conversions) |
| PWM Outputs |
6 complementary PWM outputs with dead-time insertion |
| Timers |
General-purpose quad timers and dedicated timer resources |
| Serial Interfaces |
SPI, SCI (UART) |
| Debug |
JTAG / OnCE debug/programming port |
| GPIO |
Up to11 multiplexed GPIO pins |
| Clock |
PLL or internal relaxation oscillator; software programmable |
| Voltage |
Single 3.3V supply with on-chip regulators (3.3V-tolerant I/O) |
| Package |
48-pin LQFP (SMD) |
Applications
- Motor control (BLDC, DC, stepper) and power-conversion control systems.
- Embedded audio, speech and general DSP signal-processing tasks.
- Sensor fusion, encoders, tachometry and precision measurement systems.
- Industrial automation, remote metering and smart appliance controllers.
- Compact real-time control platforms that require both DSP and MCU features.
Package Contents
- 1x DSP56F801 16-bit Digital Signal Processor 48-LQFP SMD IC.
Documents
