Preliminary

TTP229-LSF

10’/02/25

Page 4 of 18

Ver : 1.0

Pin No. Pin Name Share Pin I/O Type

Pin Description

21

TEST

I-PL

Only for test

22

TP7

SKSRT

I/O

Touch pad input pin(KEY-7)

Maximum key-on time function option(Infinite/80sec)

Default is infinite

23

TP6

SLWPTM

I/O

Touch pad input pin(KEY-6)

Sleep mode sampling length function option(4.0/2.0mS)

Default is 4.0ms

24

SENADJ1

I/O

Touch pad TP4~7 sensitivity adjust common pin

25

TP5

WPSCT

I/O

Touch pad input pin(KEY-5)

Sampling rate at sleep mode function option(8Hz/64Hz)

Default is 8Hz

26

TP4

SKMS0

I/O

Touch pad input pin(KEY-4)

Key action function option-0(Single-key/Multi-key)

Default is all single-key

27

VDD

P

Positive power supply

28

VSS

P

Negative power supply, ground

Note：Pin Type

I

＝＞

CMOS input only

I-PH ＝＞CMOS input and pull-high resister

I-PL ＝＞CMOS input and pull-low resister

O

＝＞

CMOS push-pull output

I/O

＝＞

CMOS I/O

P

＝＞

Power / Ground

OD

＝＞

CMOS open drain output

(For OD TPQ0~TPQ7 pins have Diode protective circuit, SDA pin has no Diode protective circuit)