SN54ALS191A, SN74ALS191A SYNCHRONOUS 4ĆBIT UP/DOWN BINARY COUNTERS
SDAS210C − DECEMBER 1982 − REVISED JULY 1996
D Single Down / Up Count-Control Line D Look-Ahead Circuitry Enhances Speed of
Cascaded Counters
D Fully Synchronous in Count Modes D Asynchronously Presettable With Load
Control
D Package Options Include Plastic
Small-Outline (D) Packages, Ceram...
