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HD74HC164 - 8-bit Parallel-out Shift Register

General Description

This 8-bit shift register has gated serial inputs and clear.

Each register bit is a D-type master/slave flipflop.

Inputs A & B permit complete control over the incoming data.

Key Features

  • High Speed Operation: tpd (Clock to Q) = 14.5 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max Function Table Inputs Clear L H H H H Clock X A X X L X H B X X X L H Outputs QA L QAo L L H QB L QBo QAn QAn QAn.

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📁 Similar Datasheet

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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HD74HC160 Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)
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HD74HC163 Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)
HD74HC165 Parallel-load 8-bit Shift Register

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HD74HC164 8-bit Parallel-out Shift Register Description This 8-bit shift register has gated serial inputs and clear. Each register bit is a D-type master/slave flipflop. Inputs A & B permit complete control over the incoming data. A low at either or both inputs inhibits entry of new data and resets the first flip-vlop to the low level at the next clock pulse. A high level on the input enables the other input which will then determine the state of the first flip-flop. Data at the serial inputs may be changed while the clock is high or low, but only information meeting the setup and hold time requirements will be entered. Data is serially shifted in and out of the 8-bit register during the positive going transition of the clock pulse.