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74LS163A - Synchronous 4-Bit Binary Counters

Datasheet Summary

Description

These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs The LS161A and LS163A are 4-bit binary counters The carry output is decoded by means of a NOR gate thus preventing spikes during the normal counting mode of operation Synchronou

Features

  • Y Y Y Y Y Y Y Y Y Y Synchronously programmable Internal look-ahead for fast counting Carry output for n-bit cascading Synchronous counting Load control line Diode-clamped inputs Typical propagation time clock to Q output 14 ns Typical clock frequency 32 MHz Typical power dissipation 93 mW Alternate Military Aerospace device (54LS161 54LS163) is available Contact a National Semiconductor Sales Office Distributor for specificaitons Connection Diagram Dual-In-Line Package Order Numbers 54LS161AD.

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Datasheet Details

Part number 74LS163A
Manufacturer National Semiconductor
File Size 210.74 KB
Description Synchronous 4-Bit Binary Counters
Datasheet download datasheet 74LS163A Datasheet
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54LS161A DM54LS161A DM74LS161A 54LS163A DM54LS163A DM74LS163A Synchronous 4-Bit Binary Counters May 1992 54LS161A DM54LS161A DM74LS161A 54LS163A DM54LS163A DM74LS163A Synchronous 4-Bit Binary Counters General Description These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs The LS161A and LS163A are 4-bit binary counters The carry output is decoded by means of a NOR gate thus preventing spikes during the normal counting mode of operation Synchronous operation is provided by having all flipflops clocked simultaneously so that the outputs change coincident with each other when so instructed by the countenable inputs and internal gating This mode of operation eliminates the output counting spikes which are normally associa
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