74AUC1G125DBVRG4

Overview

The SN74AUC1G125 is a single bus buffer gate with a 3-state output, part of the AUC logic family optimized for high-speed operation. It operates within a wide supply voltage range of 0.8 V to 2.7 V and features over-voltage tolerant I/Os supporting up to 3.6 V independent of VCC. The device provides ±8-mA output drive at 1.8 V and achieves a maximum propagation delay (tpd) of 2.5 ns at 1.8 V with a 30 pF load. It includes an Ioff feature for partial power-down mode and back-drive protection, with a maximum ICC of 10 µA.

Feature Summary

• Optimized for high-speed digital signal processing in low-voltage environments
• Provides over-voltage tolerant inputs and outputs independent of the supply voltage
• Includes circuitry to disable outputs during partial power-down to prevent back-driving

Applications

• Redriving digital signals
• Enabling or disabling a digital signal path
• Driving transmission lines with logic

Procurement Notes

Verify the specific package variant required, as the SN74AUC1G125 is available in SOT-23 (DBV), SC70 (DCK), and DSBGA (YZP). Confirm that the ordering suffix matches the desired tape-and-reel quantity and lead finish specifications. Ensure the selected component meets the -40°C to +85°C operating temperature range requirements for the target application environment.

Selection Notes

Select this component when system design requires a single-channel buffer with 3-state control under low-voltage conditions between 0.8 V and 2.7 V. It is suitable for applications needing over-voltage tolerance on I/O lines without requiring a higher supply voltage. Consider the AUC family's ULTTL output structure if driving controlled impedance transmission lines directly without external termination resistors.

Part Context

This device belongs to Texas Instruments' AUC logic family, which is specifically engineered for speed and low-power consumption. The family utilizes ULTTL output drivers designed to minimize switching noise while maintaining optimal signal integrity. The SN74AUC1G125 serves as a fundamental building block for managing data flow in complex digital systems operating at sub-1-V to 2.7-V levels.

Replacement Considerations

SN74AUC1G125DBVR