The 74HC/HCT164 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT164 are 8-bit edge-triggered shift registers with serial data entry and an output from each of the eight stages. Package includes : 1 x 74HC164 – 8-Bit Serial-in/Parallel-out Shift Register Category: IC's