TTP239 datasheet(3/16 Pages) TONTEK

3 / 16 page

TTP239

2016/3/7

Page 3 of 16

Version：1.1

VREG

Internal regulator output pin

TPQ2

Direct output for TP2 touch input pin

TPQ3

Direct output for TP3 touch input pin

SDA

I/OD

Data pin for the I2C-bus serial data interface

SDO

Data pin for the 2-wires serial output

Option active Low/High by SAHL

SCL

Serial clock input pin for serial type

At 2-wires serial type can be set active Low/High by SAHL

When does not use serial interface type, the SCL pin must

be connected to VDD or VSS, it does not float

TPQ4

Direct output for TP4 touch input pin

TPQ5

Direct output for TP5 touch input pin

TPQ6

Direct output for TP6 touch input pin

TPQ7

Direct output for TP7 touch input pin

VSS

Negative power supply, ground

SAHL

I-PH

Output active high or low option

1(Default)=>active-high for TPQ0~7, active-low for 2-wires

serial type(SCL and SDO)

0=>active-low for TPQ0~7, active-high for 2-wires serial

type(SCL and SDO)

I-PH

A0 is input pin for the I2C-bus device address selection I2C

ID Address=1010 10X, default:1

I-PH

Multi-key/Single-key option

1(Default)=>Multi-key mode; 0=>Single-key mode

LVREN

I-PH

LVR function enable/disable option

1(Default)=>enable; 0=>disable

MOT1

I-PH

MOT0

I-PH

Key maximum on time function option, 11(Default)

MOT0 MOT1

Maximum on time

Infinite

16sec

64sec

120sec

SLSERT

I-PH

The option pin for serial output type selection, Defaut:1

Pin Type

CMOS input only

I-PH

CMOS input and pull-high resister

CMOS push-pull output

I-PL

CMOS input and pull-low resister

I／O

CMOS I／O

Open drain output

Power／Ground

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