ST12 Datasheet | SunRom

.. ST12 CODEC - IR/RF Remote Control Encoder/Decoder IC 1. Overview ST12 CODEC is Radio Frequency and Infrared encoder/decoder IC for remote control applications having unique Features and flexibility not available with other remote control encoder decoder ICs. ST12 is truly a single-chip remote control solution. Transmitter and Receiver can operate over Radio Frequency or Infrared having four address and eight data bits. Transmission and Reception over Infrared is achieved by monly available Infrared LEDDetector and for RF any general purpose RF Transmitter-Receiver pair would suffice. The ST12 bines the functionality of both encoder and decoder in a single package with several unique Features for enhanced operation and a reduced ponent count for transmitter and receiver circuits. The ENC-DEC pin configures the ST12 IC for encode or decode operation automatically at powerup. 18 PIN DIP A0 A1 A2 A3 GND D0 D1 D2 D3 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 MODE IR - RF LATCH - MOM DATA RX - TX ENC-DEC VCC D7 D6 D5 D4 2. - - - - - - - Features Encode / Decode on single chip Built in Oscillator Minimum External ponents Wide operating voltage range. (2.0 - 5.5V) Single chip Encoding Decoding Mode 40k Hz carrier for infrared transmission medium 18 pin DIP package 3. - - - - - - - - Applications Burglar alarm system Smoke and fire alarm system Garage door controllers Car door controllers Car alarm system Security system Cordless telephones Other remote control systems .. Page 2 of 6 4. Pin Definitions Description A0-A3 - 4 bit Address Input GND - Ground D0-D7 - 8 bit Data input if configured as Encoder...