SN74HC191NSR

Counter Dividers Overview

The SN74HC191NSR is a synchronous up/down binary counter manufactured by Texas Instruments. It features four-bit counting capability with independent up and down control inputs, allowing bidirectional operation. The device operates within a supply voltage range of 2 V to 6 V and utilizes a 16-pin SOP package for surface mount installation. It supports asynchronous clear functionality and includes a ripple clock output for cascading applications.

Counter Dividers Feature Summary

• Synchronous up/down binary counting architecture
• Independent direction control via dedicated up and down inputs
• Asynchronous master reset capability for immediate clearing

Counter Dividers Applications

• Bidirectional digital counting systems
• Frequency division circuits
• Position control logic

Counter Dividers Procurement Notes

Verify the specific suffix 'NSR' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and pinout compatibility. Ensure that the selected component matches the required SOP-16 form factor and HC series electrical specifications for your design.

Counter Dividers Selection Notes

Select this component when a synchronous, bidirectional binary counter is required within standard CMOS logic families. Consider the 2 V to 6 V operating range and the availability of separate up/down control signals as primary selection criteria over simpler unidirectional counters.

Counter Dividers Part Context

This part belongs to the SN74HC191 family of synchronous up/down counters. It is designed for general-purpose digital applications requiring precise bidirectional counting operations. The device integrates standard logic functions optimized for low power consumption and high noise immunity typical of the HC series.

Counter Dividers Replacement Considerations

Consult official substitution guides for compatible SN74HC191 variants or equivalent up/down counters from other manufacturers. Verify pin compatibility and electrical parameters before replacing.