8-bit serial-to-parallel shift register – 74HCS Schmitt-trigger family
The Texas Instruments SN74HCS594PWR is an 8-bit serial-to-parallel shift register from the 74HCS logic family. It takes serial data in and presents it on eight parallel outputs, with a push-pull output stage. The part operates across a 2V to 6V supply range and is rated for the full industrial temperature span of -40°C to 125°C, making it suitable for motor-drive control boards, PLC output modules, and outdoor telecom gear where the ambient can climb.