74ABT126DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74ABT126DB,112 is a quad buffer and line driver featuring three-state outputs controlled by dedicated output enable inputs. It utilizes BiCMOS technology to deliver high-speed performance and robust output drive capabilities. The device supports partial power-down applications through integrated IOFF circuitry, which prevents damaging backflow currents when the device is powered down. It operates within a supply voltage range of 4.5 V to 5.5 V and provides direct interface compatibility with TTL logic levels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• BiCMOS technology enables high-speed operation and strong output drive capability.
• Integrated IOFF circuitry facilitates partial power-down mode by disabling outputs to prevent backflow current.
• Three-state buffers allow live insertion and extraction in bus interface applications.
• Direct interface compatibility with TTL logic levels simplifies system integration.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down applications requiring protection against backflow current
• Quad bus interface systems utilizing three-state buffering
• Live insertion and extraction scenarios in digital circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant during procurement, as the datasheet lists SO14 (SOT108-1) and TSSOP14 (SOT402-1). Confirm that the ordered component matches the required pin configuration and thermal characteristics for the intended application environment. Ensure compliance with the specified operating temperature range and voltage limits to maintain device reliability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring high-speed buffering with three-state control and TTL level interfacing. The BiCMOS process offers superior drive strength compared to standard CMOS alternatives. Consider the IOFF feature if the design involves hot-swapping or partial power-down states to protect downstream components from reverse current flow.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT126 belongs to Nexperia's Advanced BiCMOS Technology (ABT) logic family. This series combines the speed of bipolar transistors with the low power consumption of CMOS. The ABT family is designed for high-performance digital applications where fast switching speeds and significant output drive are necessary, distinguishing it from standard HC or HCT logic families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet revision history indicates that the type number 74ABT126DB (SSOP14) was removed in version 6. Verify if alternative packages such as the SO14 or TSSOP14 variants meet the physical footprint requirements of the existing design without necessitating PCB layout changes.