GENERAL DESCRIPTIONTM57PE40是一個8位元高性能OTP單片機，採用CMOS製程，具有高效能、低耗電以及
高抗雜訊能力特點。它的核心是RISC-like的架構，只需36個指令，並具備內建高低頻
RC振盪器、低電壓工作的特性、快慢鐘操作運算模式、16位捕捉定時器模塊、可靈活調
整的計時器/計數器、簡易觸模按鍵模組、最多支援28 I/O腳位的靈活使用，且提供不同
數量的腳位包裝供選擇。它強大的功能使得它可以廣泛應用在多腳位I/O控制產品，例如
傳感器信號處理、消費性產品和子系統控制等等。
FEATURES1. ROM: 4K x 14 bits OTP or 2K x 14 bits TTP™ (Two Time Programmable ROM)
2. RAM: 176 x 8 bits
3. STACK: 6 Levels
4. Oscillation Sources
. Fast-clock
- FXT (Fast Crystal): 1M~24 MHz
- FIRC (Fast Internal RC): 2/4/8/16 MHz
- XRC (External R, External C): 10K~3 MHz
. Slow-clock
- SXT (Slow Crystal): 32768 Hz
- XRC (External R, External C): 10K~3 MHz
- SIRC (Slow Internal RC): 168K/40K/9.8K/2.6 KHz @5V; 128K/30.3K/7.6K/2K @3V
- TKRC (Touch Key Clock): 128K/64K/16K/4 KHz @5V, un-touched; 80K/40K/10K/2.5K @3V, un-touched
5. Dual System Clock
. FIRC + SIRC
. FIRC + SXT
. FIRC + XRC
. FIRC + TKRC
. FXT + SIRC
. FXT + TKRC
. XRC + SIRC
. XRC + TKRC
6. Power Saving Operation Mode
. FAST Mode: Slow-clock can be disabled or enabled
. SLOW Mode: Fast-clock stops, CPU running
. IDLE Mode: Slow-clock running, CPU stops, Timer2 is running
. STOP Mode: All Clocks stop, Wake-up Timer is disabled or enabled
7. Operation Voltage and Speed: VDD=1.6V @4 MHz
8. 3 Independent Timers
. Timer0
- 8-bit timer divided by 1~256 pre-scaler option, Counter / Interrupt / Stop function
- Capture – high duty or low duty (pulse width measurement)
- Overflow and Toggle out
. Timer1
- 16-bit timer with two pre-scalers, Counter / Interrupt / Stop / Clear&Hold / Set / Reload function
- Capture – period time
- Overflow and Toggle out
. Timer2
- 15-bit timer with 4 interrupt interval time options
- IDLE mode wake-up timer or used as one simple 15-bit timer base
- Clock source: SXT / XRC / SIRC / TKRC
9. Interrupt
. Three External Interrupt pins
- 2 pins are falling edge wake-up triggered
- 1 pin is rising or falling edge wake-up triggered
. Timer0 / Timer1 / Timer2 / WKT (wake-up) Interrupts
. Comparator output change interrupt
10. PB[7:0] individual pin low level wake up
11. Wake-up (WKT) Timer
. Clocked by built-in RC oscillator with 4 adjustable Interrupt times
0.9 ms/1.8 ms/30 ms/120 ms @5V, 1 ms/2 ms/32 ms/128 ms @3V
12. Watchdog Timer
. Clocked by built-in RC oscillator with 4 adjustable Reset Time
100 ms/200 ms/800 ms/1600 ms @5V, 130 ms/280 ms/1100 ms/2200 ms @3V
. Watchdog timer can be disabled/enabled in STOP mode (WDTSLPSTP, R0Eh.5)
13. 2 Independent PWMs
. PWM0:
- 8-bit with 1~8 pre-scalers, period-adjustable / duty-adjustable /
Clear&Hold / Non-inverting or inverting output.
. PWMA:
- 8+2 bits, duty-adjustable controlled PWM
14. One analog voltage comparator
15. 15-channel Touch Key, supports one key wakeup for low power consumption
16. Reset Sources
. Power On Reset / Watchdog Reset / Low Voltage Reset / External Pin Reset
17. Low Voltage Reset Option: LVR1.5V, LVR1.5V disable in SLEEP, LVR2.3V, LVR3.2V
18. Operation Voltage: Low Voltage Reset level to 5.5V
. fosc = 4 MHz, 1.7V ~ 5.5V
. fosc = 8 MHz, 1.8V ~ 5.8V
. fosc = 12 MHz, 2.1V ~ 5.5V
. fosc = 16 MHz, 3.1V ~ 5.5V
. fosc = 24 MHz, 4.0V ~ 5.5V
19. Operating Temperature Range: -40°C to +85°C
20. Instruction set: 36 Instructions
21. Instruction Execution Time
. 2 oscillation clocks per instruction except branch
22. I/O ports: Maximum 29 programmable I/O pins
. Pseudo-Open-Drain Output
. Open-Drain Output
. CMOS Push-Pull Output
. Schmitt Trigger Input with pull-up resistor option
23. Package Types:
. 24-pin SOP (300 mil), SSOP (209 mil)
. 28-pin DIP (300 mil), SOP (300 mil), SSOP (209mil)
. 32-pin SOP (300 mil), QFN (4x4x0.75-0.4mm)
24. Supported EV board on ICE
EV board: EV2787