74HC191D,652

Counter Dividers Overview

The Nexperia 74HC191D,652 is a synchronous up/down binary counter integrated circuit belonging to the 74HC logic family. It features a 4-bit capacity with independent up and down count inputs, allowing bidirectional counting controlled by a single clock signal. The device operates within a supply voltage range of 2 V to 6 V and utilizes a 16-pin SOIC surface-mount package. Key electrical characteristics include a maximum propagation delay of 37 ns at 6 V and output drive capabilities of ±5.2 mA. It supports asynchronous reset functionality and is designed for operation across an extended temperature range from -40°C to +125°C.

Counter Dividers Feature Summary

• Synchronous four-bit binary counting capability with dedicated up and down control inputs
• Bidirectional counting operation managed via a single clock input pin
• Asynchronous reset function for immediate clearing of all counter outputs
• Wide operating voltage range supporting compatibility with various digital logic systems

Counter Dividers Applications

• Digital frequency division circuits
• Position control systems requiring bidirectional tracking
• Timing sequence generation in embedded controllers
• Event counting applications in industrial instrumentation

Counter Dividers Procurement Notes

Verify component authenticity through official Nexperia channels or authorized distributors. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure storage conditions adhere to JEDDEC standards to prevent solderability issues. Request batch-specific documentation to validate manufacturing origin and quality certifications before final procurement approval.

Counter Dividers Selection Notes

Select this component when designing circuits requiring precise synchronous bidirectional counting within a wide voltage window. The HC series offers higher speed than standard TTL equivalents while maintaining CMOS low power consumption. Consider the 16-pin SOIC package constraints for PCB layout density. Evaluate thermal dissipation requirements if operating near the upper temperature limit.

Counter Dividers Part Context

This part belongs to the widely adopted 74HC series of high-speed CMOS logic devices manufactured by Nexperia. The 74HC191 specifically addresses the need for reversible binary counting in digital systems. It serves as a fundamental building block for complex state machines and data processing units where directionality and synchronization are critical design parameters.

Counter Dividers Replacement Considerations

Direct substitutes include the 74HC191D,653 variant which differs only in packaging format. Other compatible alternatives may include equivalent parts from Texas Instruments or ON Semiconductor, provided they match the 74HC logic family specifications and pinout configuration.