74ABT126DB,118

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT126DB,118 is a quad buffer and line driver manufactured by Nexperia. It features BiCMOS technology providing high speed and output drive capabilities within a supply voltage range of 4.5 V to 5.5 V. The device includes four non-inverting buffers with independent 3-state outputs controlled by nOE inputs. It supports partial power-down applications via IOFF circuitry, which disables outputs to prevent backflow current. The component operates across an ambient temperature range of -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• BiCMOS technology ensures high-speed operation combined with robust output drive capability for bus interface applications.
• Integrated IOFF circuitry enables partial power-down mode, preventing potentially damaging backflow currents when the device is unpowered.
• Outputs are designed to permit live insertion and extraction without causing system interference or damage.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines in high-speed digital systems
• Partial power-down applications requiring isolation during power loss
• Live insertion and extraction scenarios in modular hardware

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package designation against the ordering information table. The datasheet revision history indicates that type number 74ABT126DB (SOT337-1 / SSOP14) was removed in version 6. Ensure the requested part corresponds to the currently supported SO14 package (SOT108-1) to avoid compatibility issues with existing designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring direct interface with TTL levels and high output drive strength. The device is suitable for environments where partial power-down protection is necessary to safeguard downstream components. Verify that the operating voltage remains within the 4.5 V to 5.5 V range to maintain specified performance characteristics.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74ABT logic family, characterized by BiCMOS construction for superior speed and drive compared to standard CMOS. It functions as a quad buffer with 3-state outputs, distinct from inverters or decoders. The manufacturer transitioned from NXP to Nexperia, maintaining the same functional specifications for this logic series.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly states that the type number 74ABT126DB (SSOP14) was removed in revision 6. No alternative substitute part numbers are provided in the source material.