CD74HCT126MG4

Overview

The CD74HCT126MG4 is a high-speed CMOS logic quad buffer with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -55 °C to +125 °C. The device features Schmitt trigger inputs for noise immunity and provides unidirectional data flow. It is housed in a 14-pin SOIC package designed for surface-mount installation.

Feature Summary

• Quad buffer configuration with independent three-state control
• Schmitt trigger inputs for enhanced noise filtering
• High-speed CMOS technology for low power consumption
• Wide operating temperature range suitable for industrial environments

Applications

• Clock buffering and distribution systems
• Data bus driving applications
• Industrial control signal conditioning
• Memory interface circuits

Procurement Notes

Verify the specific suffix MG4 to confirm the tube packaging format and lead-free status. Confirm RoHS compliance requirements against current environmental regulations. Check for obsolescence notices or lifecycle changes directly from Texas Instruments documentation before finalizing procurement plans.

Selection Notes

Select this component when unidirectional buffering with three-state capability is required. Ensure the system voltage aligns with the 4.5 V to 5.5 V HCT logic family specifications. Consider the SOIC-14 package constraints for PCB layout and thermal management during design integration.

Part Context

This part belongs to the CD74HCT series, which combines high-speed CMOS performance with TTL-compatible input thresholds. It serves as a standard logic buffer solution for digital systems requiring signal isolation and drive enhancement within the 74HCT logic family architecture.

Replacement Considerations

CD74HCT126M is a verified manufacturer-recommended alternative without the G4 suffix.