‰ 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 UT54ACS191 and the UT54ACTS191 are synchronous 4bit reversible up-down binary counters. Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instr.

UT54ACS190

UT54ACS191E

UT54ACS193

UT54ACS193E

UT54ACS10

UT54ACS109

UT54ACS109E

UT54ACS11

UT54ACS132

UT54ACS132E

UT54ACS138

UT54ACS138E

UT54ACS139