CD54ACT191 counter equivalent, presettable synchronous 4-bit binary up/down counter.
* Buffered Inputs
* Typical Propagation Delay - 12.8ns at VCC = 5V, TA = 25oC, CL = 50pF
* Exceeds 2kV ESD Protection MIL-STD-883, Method 3015
* SCR-Latch.
The CD54AC191 and CD54ACT191 are asynchronously presettable binary up/down synchronous counters that utilize Advanced CMOS Logic technology. Presetting the counter to the number on preset data inputs (P0-P3) is accomplished by setting LOW the asynchr.
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