74AHCT2G126GD,125

Buffers, Drivers, Receivers, Transceivers Overview

The 74AHCT2G126GD,125 is a dual buffer and line driver featuring three-state outputs controlled by active-low output enable inputs. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input switching levels. The device provides symmetrical output impedance with high noise immunity and low power dissipation. Inputs are overvoltage tolerant, enabling use as translators in mixed-voltage environments. It is specified for operation from -40 °C to +125 °C and includes ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual non-inverting buffer configuration with three-state outputs managed by dedicated enable pins.
• TTL-compatible input logic levels ensure direct interface with standard digital systems.
• Overvoltage tolerant inputs allow safe translation between different voltage domains.
• Balanced propagation delays support high-speed signal integrity applications.

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-voltage signal translation between TTL and CMOS subsystems
• High-speed data bus buffering and line driving
• Clock distribution networks requiring precise timing alignment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through authorized Nexperia distributors or certified partners. Confirm the specific suffix GD indicates the 8-XSON package variant. Check current lifecycle status as this part may be discontinued; validate availability of equivalent alternatives if long-term supply is required. Ensure RoHS3 compliance matches project specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-level inputs are required alongside CMOS performance characteristics. The AHCT series is appropriate for 5 V systems needing robust noise immunity. Consider the 8-XSON package for compact surface-mount designs. Verify that the 4.5 V minimum supply voltage aligns with the target system's power rails before finalizing the design.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Nexperia 74AHC/AHCT family of high-speed Si-gate CMOS logic devices. It shares functional similarities with other buffers like the 74AHC2G126 but differs in input threshold requirements. The MicroPak™ packaging technology enables small form factors suitable for portable electronics and dense circuit boards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT2G126DC,125 serves as a verified substitute offering identical electrical functionality in an 8-VSSOP package. Designers must account for pinout compatibility and thermal differences when transitioning between the XSON and VSSOP footprints during board redesigns.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the function of the nOE pin?

The nOE pin is an active-low output enable input. When driven LOW, the outputs assume a high-impedance OFF-state, effectively disconnecting them from the bus.

Can this device translate signals between 3.3 V and 5 V systems?

Yes, the overvoltage tolerant inputs allow the device to accept signals higher than its own VCC, facilitating translation in mixed-voltage environments.