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SN54LS197

Motorola
Part Number SN54LS197
Manufacturer Motorola
Description 4-STAGE PRESETTABLE RIPPLE COUNTERS
Published Jul 17, 2016
Detailed Description 4-STAGE PRESETTABLE RIPPLE COUNTERS The SN54/74LS196 decade counter is partitioned into divide-by-two and divide-by-fiv...
Datasheet PDF File SN54LS197 PDF File

SN54LS197
SN54LS197

Overview
4-STAGE PRESETTABLE RIPPLE COUNTERS The SN54/74LS196 decade counter is partitioned into divide-by-two and divide-by-five sections which can be combined to count either in BCD (8, 4, 2, 1) sequence or in a bi-quinary mode producing a 50% duty cycle output.
The SN54/74LS197 contains divide-by-two and divide-by-eight sections which can be combined to form a modulo-16 binary counter.
Low Power Schottky technology is used to achieve typical count rates of 70 MHz and power dissipation of only 80 mW.
Both circuit types have a Master Reset (MR) input which overrides all other inputs and asynchronously forces all outputs LOW.
A Parallel Load input (PL) overrides clocked operations and asynchronously...


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