SN74HCT125NG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT125NG4 is a quadruple bus buffer gate manufactured by Texas Instruments, belonging to the HCT logic family. It features four independent non-inverting buffers with three-state outputs controlled by separate output enable inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 14-pin PDIP package for through-hole mounting. Key electrical characteristics include a low-level output current of 6 mA, a high-level output current of -6 mA, and a maximum propagation delay of 36 ns at 4.5 V. It supports an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four independent non-inverting buffer channels with individual control capabilities
• Features three-state outputs that allow connection to shared data buses without interference
• Ensures high-impedance states during power-up or power-down conditions to prevent bus contention

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and address drivers
• Clock drivers requiring controlled output impedance
• Multiple bus transmitters for signal isolation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's datasheet to confirm RoHS compliance and lead-free status. Ensure the ordering part number matches the exact package type and temperature rating required for your design. Cross-reference the component marking with official documentation to distinguish it from similar variants in the SN74HCT125 series.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible input levels are required alongside CMOS output drive capabilities. The HCT series ensures compatibility with standard 5V logic systems while offering improved noise immunity compared to older HC series devices. Consider the PDIP-14 package constraints if space limitations favor surface-mount alternatives like the SOIC variant.

Buffers, Drivers, Receivers, Transceivers Part Context

This component is part of the broader SN74HCT125 family of quadruple bus buffers. It shares functional similarities with other members such as the SN74HCT125D and SN74HCT125N, differing primarily in packaging and manufacturing revisions. The HCT technology bridges the gap between TTL input requirements and CMOS output performance.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74HCT125N and SN74HCT125DTG4. Verify pinout compatibility and electrical specifications before substitution.