Features: 
1. Tontek RISC 4-bit CPU core 
2. Total 26 crucial instructions and two addressing mode 
3. Most instructions need 1 word and 1 machine cycle(2 system clocks) 
except read table instruction(RTB) 
4. advance CMOS process 
5. Working memory with 1984*16 program ROM and 144*4 SRAM 
6. 2-level stacks 
7. Operating voltage: 
5.5V~3.1V (LDO ON)；
5.5V~2.5V (LDO OFF、LVR ON)；
5.5V~2.2V (LDO OFF、LVR OFF)；
8. System operating frequency: (at VDD=5V ) 
. High-speed system oscillator (OSCH): 
◆Built-in RC oscillator: 4MHz(typical) 
◆Low speed peripheral oscillator (OSCL): 
◆Built-in RC oscillator: 16KHz(typic
9. Offer 3 IO+10 touch pad or 13 general programmable I/O 
◆ IO port built-in key wake-up feature enable by software setting 
◆ Providing external interrupt inputs 
◆ Offering internal signal outputs, like buzzer
10. One 8-bit TCP1 auto-reload timer/counter & one time base counter 
◆ 4 timer clock sources selected by software 
◆Time base offers 2 various period interrupt request 
11. One 8-bit TCP2 auto-reload timer/counter, can improve PWM function 
◆ 4 timer clock sources selected by software 
12. Built-in 3 set 8-bit PWM output 
13. MCU system protection and power saving controlled mod
◆ Built-in watch dog timer (WDT) circuit 
◆ ROM code error detection 
◆ Out of user program’s range detection 
◆ Providing high/low system operating speed、sleep mode for power saving control 
◆ Built-in low voltage reset (LVR) function 
14. 10 pins with touch pad detection 
15. Built-in LDO voltage 2.7V. 
16. Provides 8 interrupt sources 
◆ External: INT0, INT1 shared with IO pad 
◆Internal: two Timer/counter, two Time base timer 
◆ Two touchpad’s interrupt 
17. Provide package types 
◆ SOP 16/ SOP 8 
 

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