TTP258 datasheet(2/44 Pages) TONTEK

2 / 44 page

Preliminary

TTP258

TonTouch

16’/04/06

Page 2 of 44

Ver.: 1.2

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(PWM)

10. One 8-bit TCP1 auto-reload timer/counter & onetime 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 mode:

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

TTP258 Datasheet(PDF) 2 Page - Tontek Design Technology