74ABT125DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74ABT125DB,112 is a quad buffer and line driver featuring three-state outputs controlled by active-low output enable inputs (nOE). It utilizes BiCMOS technology to provide high-speed performance and robust output drive capabilities. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports direct interfacing with TTL logic levels. It incorporates IOFF circuitry for partial power-down applications, preventing damaging backflow currents when the device is powered down. The component is specified for operation across an ambient temperature range of -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• BiCMOS technology enables high-speed signal transmission and strong output drive capability.
• Integrated IOFF circuitry disables outputs during power-down to prevent backflow current.
• Outputs enter a high-impedance state when nOE inputs are HIGH, allowing bus sharing.
• Inputs remain disabled during three-state mode to ensure stable logic states.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down systems requiring protection against backflow current
• Quad bus interface architectures
• Live insertion and extraction circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix matches the specific package variant required, as the base part number covers multiple packages. Confirm the revision history indicates production status rather than development or preliminary stages. Ensure the requested quantity aligns with standard manufacturing packaging formats. Cross-reference the manufacturer's latest datasheet for any recent changes to pinning or electrical characteristics before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad buffer with three-state control is needed for 5 V logic systems. The BiCMOS process offers superior speed compared to standard CMOS alternatives. Verify that the system voltage remains within the 4.5 V to 5.5 V operating range. Consider the IOFF feature if the design involves hot-swapping or partial power management scenarios.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT series of high-speed BiCMOS logic components. The 'DB' designation specifically identifies the SO14 plastic small outline package variant. Other variants in the family include TSSOP14 and DHVQFN14 packages, which share identical electrical functionality but differ in physical dimensions and thermal properties.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include other 74ABT125 variants from different manufacturers offering quad buffers with three-state outputs. Package-specific replacements require matching the SO14 footprint. Verify compatibility with existing PCB layouts and thermal dissipation requirements when substituting.