HomedatasheetSN74LS393D

SN74LS393D Datasheet

Counter ICs
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Description

The SN54/74LS390 and SN54/ SN74LS393D each contain a pair of high-speed 4-stage ripple counters. Each half of the LS390 is partitioned into a divide-by-two section and a divide-by five section, with a separate clock input for each section. The two sections can be connected to count in the 8.4.2.1 BCD code or they can count in a biquinary sequence to provide a square wave (50% duty cycle) at the final output. SN74LS393D Features • Dual Versions of LS290 and LS293• LS390 has Separate Clocks Allowing ÷2, ÷2.5, ÷5• Individual Asynchronous Clear for Each Counter• Typical Max Count Frequency of 50 MHz• Input Clamp Diodes Minimize High Speed Termination Effects
Features

Parameters

[{"Name":"Logic Family","Value":"TTL"},{"Name":"Counting Sequence","Value":"Up "},{"Name":"Operating Supply Voltage","Value":"4.75 V to 5.25 V "},{"Name":"Package / Case","Value":"SOIC-14 "},{"Name":"Packaging","Value":"Tube "},{"Name":"Mounting Style","Value":"SMD/SMT "}]

Manufacturer information

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