SN74HC191NG4

Counter Dividers Overview

The SN74HC191NG4 is a synchronous 4-bit up/down binary counter manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports counting rates up to 24 MHz. The device features asynchronous reset and preset capabilities, along with parallel data inputs for loading specific values. It utilizes positive-edge triggering for clock synchronization. The component is housed in a 16-SOIC surface-mount package and is rated for operation across an extended temperature range from -40°C to +85°C.

Counter Dividers Feature Summary

• Synchronous 4-bit up/down binary counting functionality
• Asynchronous reset and preset control inputs
• Parallel data input capability for direct value loading
• Positive-edge triggered clock synchronization

Counter Dividers Applications

• Digital frequency division circuits
• Sequential logic state machines
• Binary event counting systems

Counter Dividers Procurement Notes

Verify the exact suffix 'G4' against manufacturer documentation to confirm lead-free compliance status. Ensure the ordering part number matches the specific package variant required for your PCB layout. Cross-reference the datasheet revision date to validate electrical specifications before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit counter with bidirectional counting capability is required. It is suitable for designs needing parallel load functionality and asynchronous reset. Verify that the operating voltage aligns with the 2 V to 6 V specification and that the SOIC-16 package fits the available board space constraints.

Counter Dividers Part Context

This part belongs to the Texas Instruments 74HC series of high-speed CMOS logic devices. It is functionally compatible with other industry-standard 4-bit up/down counters within the same logic family. The device provides a robust solution for digital counting applications requiring low power consumption and wide voltage operation ranges typical of HC technology.

Counter Dividers Replacement Considerations

Consult official substitution guides for equivalent parts such as the SN74HC191DR or SN74HC191NS. Verify pin compatibility and electrical parameters before replacing the component in existing designs.