TTP224B
TTP224B is 4 keys Touch Pad Detector IC manufactured by TONTEK.
Description
Key-on & timing control
TOG AHLB OD SM
Pad NO
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Pad Name
TP0 TP1 TP2 TP3 AHLB VDD VREG TOG LPMB MOT1 MOT0 VSS REGEN OD SM TPQ3 TPQ2 TPQ1 TPQ0
Type
I/O I/O I/O I/O I-PL P P I-PL I-PL I-PH I-PH P I-PH I-PH I-PH O O O O
Pad Description
Touch pad input pin Touch pad input pin Touch pad input pin Touch pad input pin Output active high or low option, default: 0 Positive power supply Internal regulator output pin Output type option, default: 0 Low power/fast mode option, default: 0
Key maximum on time option, default: 1
Negative power supply, ground Internal regulator enable/disable function option, default: 1 Output open-drain option, default: 1 Single/multi key option, default: 1 Direct output for TP3 touch input pin Direct output for TP2 touch input pin Direct output for TP1 touch input pin Direct output for TP0 touch input pin
Pin Type z I z O z I／O z P
CMOS input only CMOS push-pull output CMOS I／O Power／Ground z I-PH z...
