TTP255 Datasheet, PDF (2/49 Pages) Tontek Design Technology – Target Spec.

Preliminary
TTP255
TonTouch^TM
Built-in watch dog timer (WDT) circuit
Providing high/low system operating speed、sleep、stop mode
for power saving control
Built-in low voltage reset (LVR) function
12. 16 Touch pads detection features
13. Provides 13 interrupt sources
External: INT0 & INT1 shared with IO pad
Internal: Timer/counter 1/2, IIC & Time base timer
Software interrupt request for CPU A & B
Touch pad detect and Touch pad detect overflow interrupt
14. Provide LDO to avoid Power noise
Select 2.7V or 3.3V output by option
15. Provide two wire serial interface (TT-BUS)
16. Provide package types
QFN 32 pin, SKDIP/SOP 28 pin ,
SKDIP/SOP/SSOP/TSSOP 24 pin,
SKDIP/SOP/SSOP/TSSOP 20 pin,
SKDIP/SSOP 16 pin
Dice available
§ Applications:
1. Household electric appliances
2. Consumer products
3. Measurement controller
12’/08/21
Page 2 of 49
Ver3.0