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Preliminary
TTP229-BSF
TonTouch
TM
09’/12/22 Page 4 of 16 Ver : 1.1
Pin No. Pin Name Share Pin I/O Type Pin Description
21 TP7 SKSRT I/O Touch pad input pin(KEY-7)
Maximum key-on time function option(Infinite/80sec)
Default is infinite
22 TP6 SLWPTM I/O Touch pad input pin(KEY-6)
Sleep mode sampling length function option(4.0/2.0mS)
Default is 4.0ms
23 SENADJ1 I/O Touch pad TP4~7 sensitivity adjust common pin
24 TP5 WPSCT I/O Touch pad input pin(KEY-5)
Sampling rate at sleep mode function option(8Hz/64Hz)
Default is 8Hz
25 TP4 SKMS0 I/O Touch pad input pin(KEY-4)
Key action function option-0(Single-key/Multi-key)
Default is all single-key
26 VDD P Positive power supply
27 VSS P Negative power supply, ground
28 SLPSENA I/O Sleep mode sensitivity adjustment pin for group-A(TP0~7)
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)