Encoder, remote control, 2.4-12V, DIP-18

HLT HT12E
The 212 encoders are a series of CMOS LSIs for remote control applications. They are capable of encoding information consisting of N address bits and 12N data bits. Each address/data input can be set to one of two logical states.

Main features
- Operating voltage: 2.4 V ..12 V
CMOS technology with low power consumption and high noise rejection
- Low standby current
- Decoding of 12 bit information possible
- Binary address setting
- Received codes are checked 3 times
- Address/data number combination
- Built-in oscillator requires only 5% resistance
- Display of valid transmission
- Simple interface with an RF or infrared transmission
- Minimal external components

The programmed addresses/data together with the header header bits are transmitted via an RF or infrared transmission medium on receipt of a trigger signal. The ability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further increases the application flexibility of the 212 Series encoder. The HT12A also offers a 38kHz carrier for infrared systems.

Applications
- Burglar alarm systems
- Smoke and fire detection systems
- Garage door controls
- Car door controls
- Car alarm system
- Security systems
- Cordless telephones
- Other remote control systems