FEATURES1. ROM: 2K x 14 bits MTP (Multi Time Programmable ROM) with Page Locker function
2. RAM: 256 x 8 bits
3. STACK: 8 Levels
4. System Oscillation Sources (Fsys) :
Fast-clock
- FIRC (Fast Internal RC) : 16 MHz
Slow-clock
- SIRC (Slow Internal RC) : 65 KHz @VCC=5V (EV8230: 108K@5V)
5. System Clock Prescaler:
System Oscillation Sources can be divided by 1/2/4/8 as System Clock (Fsys)
6. Dual System Clock:
FIRC+SIRC
7. Power Saving Operation Mode
FAST Mode: Slow-clock can be disabled or enabled, Fast-clock keeps CPU running
SLOW Mode: Fast-clock can be disabled or enabled, Slow-clock keeps CPU running
IDLE Mode: Fast-clock and CPU stop. Slow-clock, T2, or Wake-up Timer keep running
STOP Mode: All clocks stop, T2 and Wake-up Timer stop
8. 3 Independent Timers
Timer0
- 8-bit timer divided by 1~256 pre-scaler option, Reload/Interrupt/Stop function
Timer1
- 8-bit timer divided by 1~256 pre-scaler option, Reload/Interrupt/Stop function
- Overflow and Toggle out
T2
- 15-bit timer with 4 interrupt interval time options
- IDLE mode wake-up timer or used as one simple 15-bit time base
- Clock source: Slow-clock (SIRC), Fsys/128
9. Interrupt
Three External Interrupt pins
- 1 pin are falling edge wake-up triggered & interrupts
- 2 pins is rising or falling edge wake-up triggered & interrupt
Timer0/Timer1/T2/WKT (wake-up) Interrupts
TK (Touch Key) /ADC Interrupt
Individual Interrupt Vector
10. Wake-up (WKT) Timer
Clocked by built-in RC oscillator with 4 adjustable interrupt times
17 ms/34 ms/68 ms/136 ms @VCC=3V, 16 ms/32 ms/64 ms/128 ms @VCC=5V (EV8230: 11 ms/22 ms/43 ms/86 ms @VCC=3V,10ms/19 ms/39 ms/77 ms @VCC=5V)
11. Watchdog Timer
Clocked by built-in RC oscillator with 4 adjustable reset times
140 ms/280 ms/1120 ms/2240 ms @VCC=3V, 128 ms/256 ms/1024 ms/2048 ms @VCC=5V (EV8230: 90 ms/179 ms/719 ms/1440 ms @ 3V,77 ms/154 ms/616 ms/1232 ms @5V)
Watchdog timer can be disabled/enabled in STOP mode
12. PWMx4
PWM0:
- 8+2 bits, duty-adjustable, period-adjustable controlled PWM
- PWM0 clock source: Fast-clock or FIRC 16 MHz/32MHz, with 1~64 pre-scalers
- Complementary PWM output (PWM0P, PWM0N)
- Non-overlap time durations adjustable: (0~8)*(PWMCLK)
PWM1A/PWM1B/PWM1C:
- 8 bits, duty-adjustable (Independent) , period-adjustable controlled (Shared) PWM x3
- PWM1A/1B/1C clock source (Shared) : Fast-clock or FIRC 16 MHz/32MHz, with 1~64 pre-scalers
13. 12-bit ADC Converter with 14 input channels and 1 internal reference voltage
Internal Bandgap reference voltage1.25V ±3% @25*C, VCC=3V~5V
ADC reference voltage=VCC
14. Reset Sources
Power On Reset/Watchdog Reset/Low Voltage Reset/External Pin Reset
15. Low Voltage Reset (LVR) /Low Voltage Detection Flag (LVD) Option:
4-Level Low Voltage Reset: 2.3V/2.8V/3.6V/4.2V
3-Level Low Voltage Detection Flag: 2.8V/3.6V/4.2V ( when LVR = 2.3V)
16. 8-Channel Touch Key
Interrupt/Wake-up CPU while key is pressed
3-bit TK reference clock capacitor adjustment
12-bit TK scan length adjustment
17. Operating Voltage:
Fsys= 2 MHz, LVR ~5.5V
Fsys=16 MHz, 2.8V~5.5V
18. Operating Temperature Range : -40°C to + 85°C
19. Table Read Instruction: 14-bit ROM data lookup table
20. Instruction set: 39 Instructions
21. Instruction Execution Time
2 system clocks (Fsys) per instruction except branch
22. I/O ports: Maximum 18 programmable I/O pins
Open-Drain Output
CMOS Push-Pull Output
Schmitt Trigger Input with pull-up resistor option
23. Programming connectivity support 5-wire (ICP) or 8-wire program
24. Page Locker Size: 512W/640W/768W …./1920W by 125 words step
25. Package Types:
SOP-20/DIP-20/SOP-16/DIP-16/SOP-8
26. Supported EV board on ICE
EV board: EV8230