GENERAL DESCRIPTION

The 74HC/HCT194 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 functional characteristics of the 74HC/HCT194 4-bit bidirectional universal shift registers are indicated in the logic diagram and function table. The registers are fully synchronous.

FEATURES

• Shift-left and shift-right capability

• Synchronous parallel and serial data transfer

• Easily expanded for both serial and parallel operation

• Asynchronous master reset

• Hold (“do nothing”) mode

• Output capability: standard

• ICCcategory: MSI