FEATURES1. Operating Voltage :
M5620: VBAT= LVR~3.6V
M5625:VBAT= LVR~1.8V
M5640:VBAT= LVR~3.6V
M5645:VBAT= LVR~1.8V
Note: Power on VBAT must exceed the LVR and then set LVROFF=0x37 (disable LVR) to obtain lowest VBAT operating. Refer to the “LVR V.S. Min. Operating Voltage” curve of Characteristic Graphs Section,
2. Timepiece Current (CPU Off, LCD On, 32K crystal oscillating) :
M5620: 5uA @VDD=3V, VBAT=3V, without power saving
M5620: 3uA @VDD=1.5V, VBAT=3V, with power saving
M5625: 2uA(1/2bias) or 4uA(1/3bias) @VDD=1.5V, VBAT=1.5V
M5640: 5uA @VDD=3V, VBAT=3V, without power saving
M5640: 3uA @VDD=1.5V, VBAT=3V, with power saving
M5645: 2uA(1/2bias) or 4uA(1/3bias) @VDD=1.5V, VBAT=1.5V
3. Program ROM:
M5620: 2K x 14 bit MTP (Multi Time Programmable ROM)
M5625: 2K x 14 bit MTP (Multi Time Programmable ROM)
M5640: 4K x 14 bit MTP (Multi Time Programmable ROM)
M5645: 4K x 14 bit MTP (Multi Time Programmable ROM)
4. RAM:
M5620: 176 bytes
M5625: 176 bytes
M5640: 336 bytes
M5645: 336 bytes
5. STACK: 6 Levels
6. I/O ports:
Open-Drain Output
CMOS Push-Pull Output
Schmitt Trigger Input with pull-up resistor option
7. System Oscillation Sources (Fsys) :
Fast-clock
- FIRC (Fast Internal RC) : 3.8MHz @VDD=3V; 1.3MHz @VDD=1.5V
Slow-clock
- SIRC (Slow Internal RC) : 45KHz @VDD=3V; 32KHz @VDD=1.5V
- SXT (Slow Crystal) : 32768 Hz
System Oscillation Sources can be divided by 1/2/4/8 as System Clock (Fsys)
Dual System Clock Switching between Fast-clock and Slow-clock
- FIRC + SIRC
- FIRC + SXT
8. Power Saving Operation Mode
FAST Mode: CPU running at Fast-clock
SLOW Mode: CPU running at Slow-clock
IDLE Mode: Fast-clock and CPU stop; Slow-clock, Timer2 and LCD keep running
STOP Mode: All clocks stop
9. Resistance to Frequency Converter (RFC)
10. Three Independent Timers
Timer0 (TM0)
- 8-bit timer with divided by 1~256 pre-scale option, counter/reload/interrupt/stop/capture function
- Clock sources: Fsys or Slow-clock /1/4/16/64 (SIRC/SXT)
Timer1 (TM1)
- 8-bit timer with divided by 1~256 pre-scale option, reload/interrupt/stop/capture/clear function
- Clock source: Fsys
Timer2 (T2)
- 21-bit timer with 4 interrupt time period options (60s/1s/0.5s/0.125s)
- Clock sources: Fsys /128 or Slow-clock (SIRC/SXT)
- IDLE mode wake-up, if clock source is Slow-clock
11. Interrupts
Three External Interrupt pins (INT0~INT2)
- Rising or falling edge triggered interrupt
- Wake-up CPU from IDLE/STOP mode
Timer0/Timer1/Timer2 Interrupts
PWM0 Interrupt
RFC overflow Interrupt
12. LCD Controller / Driver
1/3 or 1/4 Duty
4 steps brightness adjustable for VLCD (only for 1/3 LCD Bias)
M5620:
- Max: 4 COM x 28 SEG or 3 COM x 29 SEG
- 1/3 LCD Bias voltage, typical VL1=1.0V, VL2=2.0V, and VLCD=3.0V
M5625:
- Max: 4 COM x 26 SEG or 3 COM x 27 SEG
- 1/2 LCD Bias voltage, typical VL1=1.5V and VLCD=3.0V
- 1/3 LCD Bias voltage, typical VL1=1.0V, VL2=2.0V, and VLCD=3.0V
M5640:
- Max: 4 COM x 44 SEG or 3 COM x 45 SEG
- 1/3 LCD Bias voltage, typical VL1=1.0V, VL2=2.0V, and VLCD=3.0V
M5645:
- Max: 4 COM x 42 SEG or 3 COM x 43 SEG
- 1/2 LCD Bias voltage, typical VL1=1.5V and VLCD=3.0V
- 1/3 LCD Bias voltage, typical VL1=1.0V, VL2=2.0V, and VLCD=3.0V
13. Watchdog Timer (WDT)
Clocked by system clock with 2 adjustable reset times, 216/Fsys or 215/Fsys
- 1.4s/0.7s @VDD=3V (Fsys = SIRC)
- 2.0s/1.0s @VDD=1.5V (Fsys = SIRC)
Watchdog timer is disabled in IDLE/STOP mode
14. Two 8-bit PWMs for Buzzer / IR application (PWM0&PWM1)
Adjustable Period & Clock Pre-scale
Clock sources: Fast-clock or Slow-clock
15. Four types Reset
Power On Reset
Watchdog Reset
Low Voltage Reset (LVR):
M5620:1.6V@25°C
M5625:1.1V@25°C
M5640:1.6V@25°C,
M5645:1.1V@25°C
External Pin Reset
16. Low Battery Detector (LBD) by BandGap Voltage Reference
M5620: Detect VBAT from 2.4V to 3.0V
M5625: Detect VBAT from 1.2V to 1.5V @LCDON=1
M5640: Detect VBAT from 2.4V to 3.0V
M5645: Detect VBAT from 1.2V to 1.5V @LCDON=1
17. Operating Temperature Range :
M5620: -40°C to + 85°C
M5625: -20°C to + 85°C
M5640: -40°C to + 85°C
M5645: -20°C to + 85°C
18. Package Type :
M5620: Dice-form
M5625: Dice-form
M5640: Dice-form / LQFP48 / LQFP64
M5645: Dice-form / LQFP48 / LQFP64
19. Supported EV board on ICE
EV board: EV8228