TTP229-LSF (Capacitive Touch Keypad Module)

Features:

– With 8 x Capacitive touch buttons, 1 x Capacitive touch slider;

– Uses touch sensor chip TTP229-LSF chip, this touch IC supports 16 touch buttons, adjustable touch sensitivity, built-in LCO;

– When all buttons without operation (about 4.0s), the chip system will recalibrate;  

– Input button number: 8 or 16;

– Output mode: 8-port direct output or serial output;

– Button working mode: single or multiple buttons;

– The sampling rate and sampling length of working mode;

– Effective button longest output time.

Parameters:

– Connector: I2C or I/0;

– Effective button: 8/16;

– Sampling rate: 8Hz/64Hz;

– Anti-static electricity capacity HDM: 6KV;

– Working voltage: 2.4~5.5V;

– Working temperature: -40’C~+85’C;

– Storage temperature: -50’C~+125’c;

– Module dimension: 4.7 x 6.8cm;

– Fixing hole dimension: 3 x 3mm.

How to Use:

• After a power-on, about 0.5 seconds a stable time. During this time, do not touch the key, and all functions are disabled
• Mode 16 keys: short All side jumpers, output through the serial port, and a linear sensor sensor included
• 8 keys mode: short SLWPTM and WPSCT, open all other jumpers, output via OUT0-OUT7

Application:

Wide consumer products; Button key replacement.