UT912D

The UTC UT912D of CMOS LSIs for remote control system applications are paired with UTC UT912E (refer to the encoder/decoder cross reference table) and is capable of decoding information which consists of N address bits and 12-N data bits. For proper operation, a pair of encoder/decoder with the same number of addresses and data format should be chosen.The UTC UT912D also is arranged to provide 8 address bits and 4 data bits.

The UT912D's receive serial addresses and data from a programmed UTC UT912E of encoders that are transmitted together with the header bits by a RF or an infrared transmission medium upon receipt of a trigger signal. If no error or unmatched codes are found, the input data codes are decoded and then transferred to the output pins. The VT pin also goes high to indicate a valid transmission.