General-Purpose Logics-HD/RD74HC Series

Dual 4-bit Binary Counters

Description The HD74HC393 contain two 4-bit ripple carry binary counters, which can be cascaded to create a single divide-by-256 counter. The HD74HC393 is incremented on the high to low transition (negative edge) of the clock input, and each has an independent clear input. When clear is set

Dual 4-bit Binary Counters

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Dual 4-bit binary ripple counter

Dual 4-bit binary ripple counter

1. General description The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP. A HIGH on

Dual 4-bit binary ripple counter

GENERAL DESCRIPTION The 74HC/HCT393 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT393 are 4-bit binary ripple counters with separate clocks (1CP and 2 CP) and master reset (

DUAL 4-BIT BINARY RIPPLE COUNTER

High Speed CMOS Logic

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