74AC191 ,4-Bit Up/Down Counter
74AC191SCX ,Up/Down Counter with Preset and Ripple ClockFunctional DescriptionThe AC191 is a synchronous up/down counter. The AC191 ripple through to the l ..
74AC191SJ ,Up/Down Counter with Preset and Ripple ClockFeaturesThe AC191 is a reversible modulo 16 binary counter. It fea-
74AC191
4-Bit Up/Down Counter