General Description

The devices are CMOS LSI encoders designed for use in remote control systems. They are capable of encoding 16-bit address codes and 8-bit data codes. Each address/data input can be set to one of the two logic states, 0 and 1.

The HT6220A/HT6221A/HT6221B/HT6222A contain 30keys (K1~K20, K33~K34, K37~K38, K41~K42, K45~K46, K49~K50), 32 keys (K1~K32), 48 keys (K1~K32, K33~K34, K37~K38, K41~K42, K45~K46, K49~K50, K53~K54, K57~K58, K61~K62) and 64 keys (K1~K64), respectively. When one of the keys is triggered, the programmed address/data is transmitted to gether with the header bits via an IR (38kHz carrier) transmission medium.

Features

 Operating voltage: 2.0V~3.6V

 DOUT with 38kHz carrier for IR medium

 Low standby current

 Minimum transmission word: one word

 Build-in RC (Internal RC) oscillator

 16-bit address codes

 8-bit data codes

 PPM code method

 Three double-active keys

 Maximum active keys

HT6220A: 30 keys

HT6221A: 32 keys

HT6221B: 48 keys

 HT6222A: 64 keys

 Low power and high noise immunity CMOS technology

 HT6220A: 16-pin NSOP package

HT6221A/HT6221B: 20-pin SOP package

HT6222A: 24-pin SOP package

Applications

 Television , setup box and DVD player controllers

 Burglar alarm systems

 Smoke and fire alarm systems

 Garage door controllers

 Car door controllers

 Car alarm systems

 Security systems

 Other remote control systems