Datasheet NXP MC145028

Freescale Semiconductor
Technical Data MC145026/D
Rev. 4, 1/2005 MC145026, MC145027
MC145028
16 16 MC145026, MC145027,
MC145028 1 1 P Suffix
Plastic DIP
Case 648 Encoder and Decoder Pairs
CMOS D Suffix
SOG Package
Case751B 16
1 DW Suffix
SOG Package
Case 751G 1 Introduction Ordering Information 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. …