HD74HC192 Datasheet, PDF(5/13 Page) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Dual Clock Line)

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HD74HC192 Datasheet, PDF (5/13 Pages) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Dual Clock Line)

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HD74HC192/HD74HC193

Timing Chart

HD74HC192

Illustrated below is the following sequence:

1. Clear outputs to zero.

2. Load (preset) to binary seven.

3. Count up to eight, nine, zero, one and two.

4. Count down to one, zero, borrow, nine, eight and seven.

Clear

Load

Data

Inputs C

Count Up

Count Down

Carry

Borrow

Sequence

Illustrated

Clear Preset

89012

Count Up

10987

Count Down

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