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HD74HC194 - 4-bit Bidirectional Universal Shift Register

Description

This bidirectional shift register is designed to incorporate virtually all of the

Features

  • a system designer may want in a shift register. It 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: parallel (broadside) load, shift right (in the direction Q A toware QD); shift left; 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.

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📁 Similar Datasheet

Part Number Description Manufacturer
HD74HC194 4-bit Bidirectional Universal Shift Register Renesas
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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HD74HC190 Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line)
HD74HC191 Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line)
HD74HC192 Synchronous Up/Down Decade/4-bit Binary Counter(Dual Clock Line)
HD74HC193 Synchronous Up/Down Decade/4-bit Binary Counter(Dual Clock Line)
HD74HC195 4-bit Parallel-Access Shift Register

Full PDF Text Transcription

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HD74HC194 4-bit Bidirectional Universal Shift Register Description This bidirectional shift register is designed to incorporate virtually all of the features a system designer may want in a shift register. It 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: parallel (broadside) load, shift right (in the direction Q A toware QD); shift left; 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 are loaded into their respective flip-flops and appear at the outputs after the positive transition of the clock input.
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