HT12A/HT12E 212 Series of Encoders
Features
· Operating voltage - 2.4V~5V for the HT12A - 2.4V~12V for the HT12E
· Low ...
HT12A/HT12E 212 Series of Encoders
Features
· Operating
voltage - 2.4V~5V for the HT12A - 2.4V~12V for the HT12E
· Low power and high noise immunity
CMOS technology
· Low standby current: 0.1mA (typ.) at VDD=5V · HT12A with a 38kHz carrier for infrared transmission
medium
· Minimum transmission word
- Four words for the HT12E - One word for the HT12A · Built-in oscillator needs only 5% resistor
· Data code has positive polarity
· Minimal external components · Pair with Holtek¢s 212 series of decoders · 18-pin DIP, 20-pin SOP package
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
General Description
The 212 encoders are a series of
CMOS LSIs for remote control system applications. They are capable of encoding information which consists of N address bits and 12-N data bits. Each address/data input can be set ...
