MC145026D PDF datasheet can download.
This product has Encoder and Decoder Pairs functions.
This is one of the semiconductor types. This part name is MC145026D.
Manufacturers of the product is Motorola.
Image and pinout :
Some of the text files within the PDF file
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145026/D Encoder and Decoder Pairs CMOS These devices are designed to be used as encoder/decoder pairs in remote control applications. The MC145026 encodes nine lines of information and serially sends this information upon receipt of a transmit enable (TE) signal. The nine lines may be encoded with trinary data (low, high, or open) or binary data (low or high). The words are transmitted twice per encoding sequence to increase security. The MC145027 decoder receives the serial stream and interprets five of the trinary digits as an address code. Thus, 243 addresses are possible. If binary data is used at the encoder, 32 addresses are possible. The remaining serial information is interpreted as four bits of binary data. The valid transmission (VT) output goes high on the MC145027 when two conditions are met. First, two addresses must be consecutively received (in one encoding sequence) which both match the local address. Se [ … ]
Please refer to the file for details.