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74F569 - 4-Bit Bidirectional Counter

Description

The 74F569 is a fully synchronous, reversible counter with 3-STATE outputs.

The 74F569 is a binary counter, featuring preset capability for programmable operation, carry lookahead for easy cascading, and a U/D input to control the direction of counting.

Features

  • s Synchronous counting and loading s Lookahead carry capability for easy cascading s Preset capability for programmable operation s 3-STATE outputs for bus organize.

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Full PDF Text Transcription

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74F569 4-Bit Bidirectional Counter with 3-STATE Outputs April 1988 Revised October 2000 74F569 4-Bit Bidirectional Counter with 3-STATE Outputs General Description The 74F569 is a fully synchronous, reversible counter with 3-STATE outputs. The 74F569 is a binary counter, featuring preset capability for programmable operation, carry lookahead for easy cascading, and a U/D input to control the direction of counting. For maximum flexibility there are both synchronous and master asynchronous reset inputs as well as both Clocked Carry (CC) and Terminal Count (TC) outputs. All state changes except Master Reset are initiated by the rising edge of the clock.
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