74ABT126D,623

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74ABT126D,623 is a quad buffer and line driver featuring three-state outputs controlled by dedicated output enable inputs (nOE). It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes BiCMOS technology for high-speed performance. The device supports direct interfacing with TTL logic levels and includes IOFF circuitry to prevent backflow current during partial power-down scenarios. It provides an output capability of +64 mA and -32 mA, ensuring robust signal driving in bus interface applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• BiCMOS technology enables high-speed operation and strong output drive capabilities
• IOFF circuitry prevents damaging backflow currents when the device is powered down
• Outputs enter a high-impedance state upon power-up to ensure system safety
• Inputs are disabled during three-state mode to maintain signal integrity

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down systems requiring isolation of powered-off buses
• Quad bus interfaces allowing live insertion and extraction
• Line drivers needing direct compatibility with TTL logic levels

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific ordering suffix matches the required package type before procurement. Confirm that the application environment remains within the specified ambient temperature limits. Ensure design safeguards account for the absolute maximum ratings to prevent permanent damage. Cross-reference the latest product data sheet revision to confirm current specifications and status.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad buffer with three-state control is required for 5 V logic systems. The BiCMOS process offers superior speed compared to standard CMOS alternatives. Consider the SO14 package dimensions if board space is constrained. Verify that the input voltage levels align with the TTL interface requirements of the connected components.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT series of advanced BiCMOS logic devices manufactured by Nexperia. The series is designed for high-performance digital applications requiring fast switching speeds and precise timing characteristics. The 74ABT126 specifically addresses buffering needs in complex digital architectures where signal isolation and drive strength are critical.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other quad three-state buffers from the same family, such as the 74ABT125. Verify pinout compatibility and electrical specifications before substitution. Alternative packages like TSSOP may be available depending on manufacturing availability.