onsemi 74AC191PC

Binary Counter, AC Series, Synchronous, Positive Edge Triggered, Bidirectional, CMOS, PDIP16

Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP W Rail

Binary Counter Logic IC; Logic Type:Binary Counter; Logic Family:AC; Logic Base Number:74191; Supply Voltage Max:6V; Package/Case:16-DIP; No. of Pins:16; Leaded Process Compatible:Yes; Number of Circuits:4 ;RoHS Compliant: Yes

IC, LOGIC, 74AC, UP/DOWN COUNTER; Counter Type:Binary, Up / Down; Clock Frequency:133MHz; Count Maximum:15; Supply Voltage Range:2V to 6V; Logic Case Style:DIP; No. of Pins:16; Operating Temperature Range:-40°C to +85°C; SVHC:No SVHC (19-Dec-2011); Clock Frequency Max:133MHz; Count Max:16; Counter Measuring Functions:Up / Down Counter; Logic IC Base Number:74191; Logic IC Family:AC; Logic IC Function:Up/Down Counter with Preset and Ripple Clock; Package / Case:DIP; Supply Voltage Max:6V; Supply Voltage Min:2V; Termination Type:Through Hole

The AC191 is a reversible modulo 16 binary counter. It features synchronous counting and asynchronous presetting. The preset feature allows the AC191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes are initiated by the rising edge of the clock. Product Highlights: ICC reduced by 50% High speed-133 MHz typical count frequency Synchronous counting Asynchronous parallel load Cascadable Outputs source/sink 24 mA