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74LS194A

Part Number	74LS194A
Manufacturer	Fairchild Semiconductor
Description	4-Bit Bidirectional Universal Shift Register
Published	Dec 6, 2020
Detailed Description	DM74LS194A 4-Bit Bidirectional Universal Shift Register August 1986 Revised March 2000 DM74LS194A 4-Bit Bidirectional ...
Datasheet	74LS194A PDF File

Overview

DM74LS194A 4-Bit Bidirectional Universal Shift Register August 1986 Revised March 2000 DM74LS194A 4-Bit Bidirectional Universal Shift Register General Description This bidirectional shift register is designed to incorporate virtually all of the features a system designer may want in a shift register; they feature parallel inputs, parallel outputs, right-shift and left-shift serial inputs, operating-mode-control inputs, and a direct overriding clear line.
The register has four distinct modes of operation, namely: Parallel (broadside) load Shift right (in the direction QA toward QD) Shift left (in the direction QD toward QA) Inhibit clock (do nothing) Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode control inputs, S0 and S1, HIGH.
The data is loaded into the associated flip-flops and appear at the outputs after the positive transition of the clock input.
During loading, serial data flow is inhibited.
Shift right is accomplished synchronously with the rising edge of the clock pulse when S0 is HIGH and S1 is LOW.
Serial data for this mode is entered at the shift-right data input.
When S0 is LOW and S1 is HIGH, data shifts left synchronously and new data is entered at the shift-left serial input.
Clocking of the flip-flop is inhibited when both mode control inputs are LOW.
Features s Parallel inputs and outputs s Four operating modes: Synchronous parallel load Right shift Left shift Do nothing s Positive edge-triggered clocking s Direct overriding clear Ordering Code: Order Number Package Number Package Description DM74LS194AM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.
150 Narrow DM74LS194AN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.
300 Wide Devices also available in Tape and Reel.
Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram © 2000 Fairchild Semiconductor Corporation DS006407 www.
fairchildsemi.
com DM74LS194A Fun...

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