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DM74LS393 Datasheet Dual 4-Bit Binary Counter

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: DM74LS393 Dual 4-Bit Binary Counter June 1989 DM74LS393 Dual 4-Bit Binary Counter.

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General Description

Each of these monolithic circuits contains eight masterslave flip-flops and additional gating to implement two individual four-bit counters in a single package The ’LS393 comprises two independent four-bit binary counters each having a clear and a clock input N-bit binary counters can be implemented with each package providing the capability of divide-by-256 The LS393 has parallel outputs from each counter stage so that any submultiple of the input count freqency is available for system-timing signals

Key Features

  • Y Dual version of the popular ’LS93 Y ’LS393 dual 4-bit binary counter with individual clocks Y Direct clear for each 4-bit counter Y Dual 4-bit versions can significantly improve system densities by reducing counter package count by 50% Y Typical maximum count frequency 35 MHz Y Buffered outputs reduce possibility of collector commu- tation Connection Diagram Functio.

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Fairchild Semiconductor Logo DM74LS393 Dual 4-Bit Binary Counter Fairchild Semiconductor

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