74ABT126D,623

Buffers, Drivers, Receivers, Transceivers Overview

The N74ABT126D,623 is a quad buffer and line driver manufactured by Nexperia (formerly NXP USA Inc.). It features BiCMOS technology for high-speed operation and robust output drive capabilities. The device includes four independent 3-state outputs controlled by separate nOE inputs. It supports a supply voltage range of 4.5 V to 5.5 V and operates within an ambient temperature range of -40 °C to +85 °C. The component is housed in a 14-lead SO plastic small outline package (SOT108-1).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated IOFF circuitry enables partial power-down mode, disabling outputs to prevent damaging backflow currents when the device is powered down.
• Provides direct interface compatibility with TTL logic levels while maintaining high-speed performance through BiCMOS construction.
• Supports live insertion and extraction applications due to power-up 3-state functionality and disabled inputs during the 3-state mode.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down system designs requiring protection against backflow current.
• Bus-oriented transmission applications utilizing quad bus interface capabilities.
• Live insertion and extraction environments necessitating 3-state control.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the 74ABT126 series includes multiple variants such as TSSOP14. Confirm the manufacturer source, noting that Nexperia acquired the NXP Standard Products business. Ensure the component meets the specified industrial temperature range requirements for the intended application environment before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed buffering with strong output drive capabilities. The BiCMOS technology offers a balance of low static power dissipation and high speed. Consider the IOFF feature if the design involves partial power-down scenarios to protect downstream components from backflow currents during power transitions.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74ABT series, which utilizes BiCMOS technology to deliver high-speed performance with low power consumption. The 74ABT126 specifically functions as a quad buffer with 3-state outputs. It is part of a broader family of logic devices designed for general-purpose digital applications requiring reliable signal transmission and bus interfacing.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes include the 74ABT126PW variant, which utilizes a TSSOP14 package instead of the SO14 package found in the D version. Both variants share identical electrical specifications and functional behavior, differing only in the physical package dimensions and lead configuration.