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 to one of the two logic states. The programmed addresses/data are transmitted together with the header bits via an RF or an infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the application flexibility of the 212 series of encoders. The HT12A additionally provides a 38kHz carrier for infrared systems.
Features
- Operating voltage
– 2.4V~5V for the HT12A
– 2.4V~12V for it - Low power and high noise immunity CMOS technology
- Low standby current: 0.1uA (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
وزن | 1 گرم |
---|---|
برند | Holtek |
نوع پکیج | DIP |
هنوز رتبه دهی نشده است