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 · Cor...