UT54ACTS190 counters equivalent, synchronous 4-bit up-down bcd counters.
Single down/up count control line Look-ahead circuitry enhances speed of cascaded counters Fully synchronous in count modes Asynchronously presettable with load c.
The UT54ACS190 and the UT54ACTS190 are synchronous 4bit reversible up-down BCD decade counters. Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so i.
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