74LVT125D/AUJ

Overview

The 74LVT125D/AUJ is a quad buffer and line driver featuring 3-state outputs controlled by active LOW output enable inputs. It operates within a supply voltage range of 2.7 V to 3.6 V, utilizing BiCMOS technology for high speed and drive capability. The device provides an output current capability of +64 mA and -32 mA. It includes bus hold data inputs to eliminate external pull-up resistors and IOFF circuitry for partial power-down applications. The component complies with JEDEC standard JESD8C and supports live insertion.

Feature Summary

• Features overvoltage tolerant inputs capable of handling up to 5.5 V while operating at lower supply voltages.
• Includes bus hold data inputs that maintain unused input states without requiring external pull-up resistors.
• Provides IOFF circuitry to disable outputs and prevent damaging backflow currents during partial power-down conditions.

Applications

• Partial power-down mode operation in systems requiring selective device isolation
• Live insertion and extraction scenarios involving hot-swapping buses
• Direct interfacing between 3.3 V logic devices and TTL level components

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure the procurement channel sources authentic Nexperia products to guarantee compliance with specified electrical characteristics and reliability standards. Cross-reference the part number with the latest product data sheet revision to avoid obsolete variants.

Selection Notes

Select this component when designing circuits requiring robust 3-state buffering with high drive strength for 3.3 V systems. The inclusion of bus hold functionality simplifies board layout by removing the need for discrete pull-up components on unused lines. Consider the overvoltage tolerance if the buffer interfaces with 5 V tolerant buses or signals.

Part Context

This device belongs to the 74LVT/LVTH125 family of quad buffers manufactured by Nexperia. It is designed for low-voltage digital logic applications, specifically targeting 3.3 V environments. The D/AUJ designation indicates a plastic small outline package (SO14) variant suitable for surface-mount assembly, adhering to standard industry footprint dimensions.

Replacement Considerations

The 74LVTH125D serves as a functional substitute within the same family, offering identical logical operations and pin configurations. Verify compatibility regarding specific dynamic characteristics and leakage parameters before substitution.