View mc74hc164a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC54/74HC164A 8-Bit Serial-Input/ Parallel-Output Shift Register High–Performance Silicon–Gate CMOS J SUFFIX CERAMIC PACKAGE 14 The MC54/74HC164A is identical in pinout to the LS164. The device CASE 632–08 inputs are compatible with standard CMOS outputs; with pullup resistors, 1 they are compatible with LSTTL outputs. The MC54/74HC164A is an 8–bit, serial–input to parallel–output shift N SUFFIX register. Two serial data inputs, A1 and A2, are provided so that one input PLASTIC PACKAGE may be used as a data enable. Data is entered on each rising edge of the 14 CASE 646–06 clock. The active–low asynchronous Reset overrides the Clock and Serial 1 Data inputs. • Output Drive Capability: 10 LSTTL Loads D SUFFIX • Outputs Directly