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CD74HC191

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters

Partnumber Manufacturer Quantity Availability
CD74HC191 1350 In Stock

Description and Introduction

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters The CD74HC191 is a high-speed CMOS logic 4-bit synchronous up/down counter with asynchronous reset. It is manufactured by Texas Instruments. Key specifications include:

- **Supply Voltage Range**: 2V to 6V
- **High-Speed Operation**: Typical propagation delay of 13 ns at 5V
- **Low Power Consumption**: 20 µA (max) at 5V
- **Synchronous Counting**: Up or down based on control inputs
- **Asynchronous Reset**: Clears all flip-flops independently of clock
- **Output Drive Capability**: 10 LSTTL loads
- **Operating Temperature Range**: -55°C to 125°C
- **Package Options**: PDIP, SOIC, TSSOP

The device is compatible with standard CMOS and TTL logic levels.

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