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74HC191 - 4-Bit Up/Down Binary Counter
The 74HC191 is a high-speed CMOS 4-bit synchronous up/down binary counter with parallel load capabilities. It counts up or down on each clock pulse depending on the logic level at the up/down control input.
Specifications:
- Counter Type: 4-bit synchronous up/down binary
- Supply Voltage Range: 2V to 6V
- Clock Frequency: Up to 29 MHz at 6V
- Parallel load capability for preset values
- Clear and enable inputs for control
- Typical Propagation Delay: ~14 ns at VCC = 5V
- Low Power Consumption: CMOS technology
- Output Drive: ±6 mA at 5V
- Package: 16-pin DIP or SOIC
Applications:
- Digital counters
- Frequency division
- Programmable timers
- Sequence generators
- Digital control systems
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