Description

The 212 encoders are a series of CMOS LSI ICs designed for remote control system applications. They encode information consisting of N address bits and 12N data bits. Each address/data input can be set to one of two logic states. The programmed addresses/data are transmitted along with the header bits via an RF or infrared transmission medium upon receiving a trigger signal. The HT12E supports a TE trigger, while the HT12A supports a DATA trigger and includes a 38kHz carrier for infrared transmission.

Features of HT12E Encoder IC

• Operating Voltage: 2.4V to 12V
• Low Power Consumption with high noise immunity CMOS technology
• Low Standby Current: 0.1µA (typ.) at VDD = 5V
• Positive Polarity for Data Code
• HT12A includes a 38kHz carrier for infrared transmission
• Minimum Transmission Word: Four words for the HT12E
• Built-in Oscillator (requires only 5% resistor)
• Minimal External Components required

Applications of HT12E Encoder IC

• Burglar Alarm Systems
• Smoke and Fire Alarm Systems
• Garage Door Controllers
• Car Door and Car Alarm Systems
• Security Systems
• Cordless Telephones
• Other Remote Control Systems