74HCT1G126GW,165

Overview

The Nexperia 74HCT1G126GW,165 is a single bus buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL-level input signals. The device provides balanced propagation delays and high noise immunity while maintaining CMOS low power dissipation characteristics. It includes input clamp diodes for interfacing with voltages exceeding VCC. The component is specified for ambient temperatures ranging from -40 °C to +125 °C and utilizes a TSSOP5 plastic package.

Feature Summary

• Features three-state outputs controlled by an active-low output enable input
• Accepts TTL logic level inputs for compatibility with standard digital interfaces
• Includes input clamp diodes to allow safe interfacing with voltages higher than the supply rail

Applications

• Bus-oriented memory and address drivers
• Clock buffering and distribution
• Translating between TTL and CMOS logic domains

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the selected variant matches the required operating temperature range for the intended application environment.

Selection Notes

Select this component when a single-channel buffer with three-state capability is required for 5 V logic systems. The HCT series ensures direct compatibility with TTL inputs, whereas the HC series supports wider voltage ranges. Verify that the load capacitance and switching speed requirements align with the dynamic characteristics provided in the datasheet.

Part Context

This part belongs to the Nexperia 74HCT1G126 family of single bus buffers. It shares functional similarities with other members like the 74HC1G126 but differs in input threshold levels. The family offers various package options including TSSOP5 and SC-74A to suit different PCB layout constraints and thermal management needs.

Replacement Considerations

The 74HC1G126GW serves as a logical alternative if CMOS input thresholds are acceptable. For automotive applications, verify availability of AEC-Q100 qualified variants such as the 74HCT1G126GW-Q10H.