74AHCT126D,112

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT126D,112 is a quad buffer and line driver featuring three-state outputs controlled by active HIGH output enable inputs (nOE). It operates within a supply voltage range of 4.5 V to 5.5 V. The device incorporates Schmitt-trigger action on all inputs and provides overvoltage tolerance up to 7.0 V, facilitating translation in mixed-voltage environments. It utilizes an SO14 plastic small outline package (SOT108-1) with a body width of 3.9 mm. The component supports an ambient operating temperature from -40 °C to +125 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Quad buffer/line driver with three-state outputs controlled by active HIGH enable inputs
• All inputs feature Schmitt-trigger action for noise immunity
• Overvoltage tolerant inputs accept voltages higher than the supply voltage
• Compatible with TTL input levels

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed voltage environment signal translation
• Bus-oriented communications systems
• Clock distribution networks
• Buffering memory address and data lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this part when TTL-compatible logic levels are required alongside CMOS performance characteristics. The AHCT series ensures direct interface with standard TTL devices while maintaining high-speed operation. Ensure the application requires four independent buffers with separate enable controls rather than shared enable configurations found in other variants.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the Nexperia 74AHC/AHCT family of high-speed Si-gate CMOS logic devices. It is pin-compatible with Low-power Schottky TTL (LSTTL) standards. The 'D' designation indicates the SO14 surface-mount package, while the ',112' suffix denotes the specific tape-and-reel packaging configuration provided by the manufacturer.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the 74AHCT126PW,112 (TSSOP14 package) and the 74AHCT126BQ,115 (DHVQFN14 package). Verify that the replacement package maintains compatibility with the existing PCB footprint or adjust design accordingly.