7493 - Decade and Binary Counters

Fairchild (now onsemi)

Datasheet Details

Part number	7493
Manufacturer	Fairchild (now onsemi)
File Size	122.70 KB
Description	Decade and Binary Counters
Datasheet	7493 Datasheet

General Description

Each of these monolithic counters contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divide-by-eight for the 93A.

All of these counters have a gated zero reset and the 90A also has gated set-to-nine inputs for use in BCD nine’s complement applications.

To use their maximum count length (decade or four-bit binary), the B input is connected to the QA output.

Overview

DM7490A, DM7493A Decade and Binary Counters March 1998 DM7490A, DM7493A Decade and Binary Counters.

Key Features

n Typical power dissipation.
90A 145 mW.
93A 130 mW n Count frequency 42 MHz Connection Diagrams Dual-In-Line Package Dual-In-Line Package DS006533-1 Order Number DM5490J, DM5490W or DM7490AN See Package Number J14A, N14A or W14B DS006533-2 Order Number DM7493AN See Package Number N14A © 1998 Fairchild Semiconductor Corporation DS006533 www. fairchildsemi. com Absolute Maximum Ratings (Note 1) Supply Voltage Input Voltage Operating Free Air Temperature Range 7V 5.5V DM.

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