SN74LS194A - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

SN74LS194A
Manufacturer

TI
ChipWorker Part#

CW435546246
RoHS

Lead free / RoHS Compliant
Description

4Bit BIDIRECTIONAL UNIVERSAL SHIFT REGISTERS
Documentation

Datasheet

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SN74LS194A Specifications

Attribute	Attribute Value

Part Number	SN74LS194A
Manufacturer	TI
ChipWorker Part#	CW435546246
Documentation	Datasheet
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

These bidirectional shift registers are designed to incorporate virtually all of the features a system designer may want in a shift register. The circuit contains 46 equivalent gates and features 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:
Inhibit clock (do nothing)
Shift right (in the direction QA toward QD)
Shift left (in the direction QD toward QA)
Parallel (broadside) load
Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode control inputs, S0 and S1, high. The data are 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 shift register is inhibited when both mode control inputs are low. The mode controls of the SN54194/SN74194 should be changed only while the clock input is high.
Parallel Inputs and Outputs
Four Operating Modes:
Synchronous Parallel Load
Right Shift
Left Shift
Do Nothing
Positive Edge-Triggered Clocking
Direct Overriding Clear

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