Philips 74HCT194
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. The functional characteristics of the 74HC/HCT194 4-bit bidirectional universal shift registers are indicated in the logic diagram and function table.| Part No. | 74HCT194 |
|---|---|
| Datasheet | 74HCT194 Download |
| Manufacturer |  Philips |
| Description | 4-bit bidirectional universal shift register |
| Buy | Stock & Price |
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
● ICC category: MSI
GENERAL DESCRIPTION
7A. The registers are fully synchronous. The “194” design has special features which increase the range of application. The synchronous operation of the device is determined by the mode select inputs (S0, S1). As shown in the mode select table, data can be entered QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns 74HC/HCT194 and shifted from left to right (Q0 → Q1 → Q2, etc.) or, right to left (Q3 → Q2 → Q1, etc.) or parallel data can be entered, loading all 4 bits of the register simultaneously. When both S0 and S1 are LOW, existing data is retained in a hold (“do nothing”) mode. The first and last stages provide D-type serial data inputs (DSR, DSL) to allow multistage shift right or shift left data transfers without interfering with parallel load operation.
