The ’HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Other data sheets within the file : 54HCT138FK, 54HCT138J, 54HCT138W, 74HCT138D
The UM3750 Encoder / Decoder 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.
1. Single chip contains both Encoder and Decoder. 2. 3V to 11 V operation. 3. On chip oscillator uses non-critical RC components