The 212 encoders are a series of CMOS LSIs for remotecontrol system applications. They are capable of encodinginformation which consists of N address bits and12N data bits. Each address/data input can be set toone of the two logic states. The programmed addresses/data are transmitted together with the headerbits via an RF or an infrared transmission medium uponreceipt of a trigger signal. The capability to select a TEtrigger on the HT12E or a DATA trigger on the HT12Afurther enhances the application flexibility of the 212 seriesof encoders. The HT12A additionally provides a38kHz carrier for infrared systems.
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