74AHCT1G126W5-7

Buffers, Drivers, Receivers, Transceivers Overview

The 74AHCT1G126W5-7 is a single non-inverting buffer with 3-state output from Diodes Incorporated, housed in an SOT-25 package. It operates within a supply voltage range of 4.5V to 5.5V and provides ±8 mA output drive at 5.0V. The device features Schmitt trigger inputs for tolerance to slow rise/fall times and includes ESD protection exceeding 2000-V Human Body Model standards. Propagation delay is typically 3.4 ns at 5V with 15pF load.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Single-channel non-inverting buffer with 3-state output control via OE pin
• Schmitt trigger action on all inputs for improved noise immunity
• Robust ESD protection meeting JESD 22 standards
• CMOS low power consumption design

Buffers, Drivers, Receivers, Transceivers Applications

• General purpose logic circuits
• PCs, networking equipment, notebooks, and netbooks
• Computer peripherals including hard drives and CD/DVD ROMs
• TV, DVD, DVR, and set-top boxes
• Phones, personal navigation/GPS devices, MP3 players, cameras, and video recorders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact ordering suffix matches the required package type (W5 for SOT-25). Confirm RoHS compliance status as applicable. Ensure the component meets specific environmental requirements if operating outside standard temperature ranges. Check datasheet revision history for any recent updates to electrical characteristics or mechanical dimensions before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a single-channel, non-inverting buffer with high-impedance state capability is required. The AHCT family ensures TTL-compatible input levels while maintaining CMOS performance. Consider the SOT-25 package for space-constrained surface-mount applications. Verify that the 4.5V to 5.5V supply range aligns with the system's power architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHCT series of logic ICs, designed for operation with a 5V power supply. The '1G' designation indicates a single gate configuration, while '126' specifies a 3-state buffer function. The W5 suffix denotes the SOT-25 surface-mount package. This series is widely used in digital logic applications requiring signal buffering and isolation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include other 74AHCT1G126 variants from different manufacturers offering identical logical functions and pinouts. Cross-reference package types carefully; SOT-353 equivalents exist but require footprint verification. Ensure replacement parts maintain the same voltage range and output drive capabilities.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the function of the OE pin?

The OE (Output Enable) pin controls the 3-state output. When OE is HIGH, the buffer is enabled and Y follows A. When OE is LOW, the output enters a high-impedance state regardless of the input A.

Does the 74AHCT1G126 have Schmitt trigger inputs?

Yes, all inputs feature Schmitt trigger action, making the circuit tolerant for slower input rise and fall times compared to standard CMOS inputs.

What is the maximum propagation delay?

At VCC = 5V and CL = 50pF, the maximum propagation delay (tpd) is 9.5 ns over the -40°C to 125°C temperature range.