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SN74F163A - SYNCHRONOUS 4-BIT BINARY COUNTER

Description

This synchronous, presettable, 4-bit binary counter has internal carry look-ahead circuitry for use in high-speed counting designs.

Features

  • a fully independent clock circuit. Changes at ENP, ENT, or LOAD that modify the operating mode have no effect on the contents of the counter until clocking occurs. The function of the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the setup and hold times.

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Full PDF Text Transcription

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SN74F163A SYNCHRONOUS 4-BIT BINARY COUNTER SDFS088A – MARCH 1987 – REVISED AUGUST 2001 D Internal Look-Ahead Circuitry for Fast Counting D, DB, OR N PACKAGE (TOP VIEW) D Carry Output for N-Bit Cascading D Fully Synchronous Operation for Counting CLR 1 CLK 2 16 VCC 15 RCO description This synchronous, presettable, 4-bit binary counter has internal carry look-ahead circuitry for use in high-speed counting designs. Synchronous operation is provided by having all A3 B4 C5 D6 ENP 7 GND 8 14 QA 13 QB 12 QC 11 QD 10 ENT 9 LOAD flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable (ENP, ENT) inputs and internal gating.
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