UM3750 - UMC Corporation

UM3750 Programmable Encoder/Decoder

T h e U M 3 7 5 0 E n c o d e r / D e c o d e r is a CMOS/LSI digital code Transmitter-Receiver system. Working in the transmit (encoder) mode, the UM3750 will sequentially encode and transmit 12 bits of input. Each of the 12 bits may be 1 or 0 to allow 4096 different codes. In the receive (decoder) mode, the incoming signal is Once IS compared to the loca.

Features

correctly, a “valid” signal is generated. This signal clears a 64ms counter and triggers a 3-stage counter. The 3-stage counter counts the “valid” pluses and when 4 pulses have been detected, the TX/RX output pin goes low. After the TX/RX output pin goes low, the next “valid” must be received within 128ms, giving a one valid in 6 requirement to keep the TX/RX output pin. detected the system will reset and beain its Pin Configurations “cc “cc TX/RX OUTPUT RECEIVER INPUT MODE SELECT “ss R.C INPUT A12 All A10 TX/RX OUTPUT RECEIVER INPUT MODE SELECT “SS R.C. INPUT A12 All A10 NC www.DataS.