74HC125D-Q100J

Overview

The 74HC125D-Q100J is a quad buffer and line driver featuring three-state outputs, manufactured by Nexperia. It operates within a supply voltage range of 2.0 V to 6.0 V and complies with JEDEC standards JESD8C and JESD7A. The device utilizes CMOS technology for low power dissipation and high noise immunity. It includes input clamp diodes to support interfacing with voltages exceeding VCC. Qualified under AEC-Q100 Grade 1, it supports automotive applications across temperature ranges from -40 °C to +85 °C and up to +125 °C.

Feature Summary

• Automotive qualification in accordance with AEC-Q100 (Grade 1) for reliable operation in vehicle environments.
• Quad non-inverting buffers with active LOW output enable inputs controlling three-state functionality.
• Wide supply voltage capability ranging from 2.0 V to 6.0 V, supporting diverse logic levels.
• High noise immunity and latch-up performance exceeding 100 mA per JESD 78 Class II Level B.

Applications

• Automotive electronic systems requiring robust signal buffering.
• Mixed-voltage interface circuits utilizing input clamp diodes.
• High-speed data transmission lines requiring three-state isolation.

Procurement Notes

Verify the specific package variant against the ordering information table. The 'D' suffix indicates an SO14 plastic small outline package (SOT108-1). Confirm that the required temperature grade aligns with the specified -40 °C to +125 °C range. Ensure design compatibility with the active LOW output enable logic before finalizing procurement.

Selection Notes

Select this component when a quad buffer with three-state control is required for automotive or industrial environments. The HC series offers CMOS input levels suitable for standard logic families. Consider the SO14 package dimensions if board space allows. Verify that the operating voltage falls within the 2.0 V to 6.0 V range for optimal performance and compliance with JEDEC standards.

Part Context

This part belongs to the Nexperia 74HCS125/74HC125/74HCT125-Q100 family of quad buffers. The 'HC' designation specifies CMOS input levels, distinguishing it from the 'HCT' variant which uses TTL levels. The 'Q100' suffix denotes automotive qualification. The 'D' package code identifies the SO14 form factor, providing 14 leads in a small outline configuration.

Replacement Considerations

The 74HCT125D-Q100J serves as a functional replacement if TTL input levels are acceptable. Other packages such as TSSOP14 (PW) offer pin-compatible alternatives for different footprint requirements. Verify that any substitute maintains the same AEC-Q100 Grade 1 qualification and three-state output characteristics.