74LVC1G125Z-7

Overview

The 74LVC1G125Z-7 is a single non-inverting buffer and bus driver manufactured by Diodes Incorporated, featuring a 3-state output. It operates within a supply voltage range of 1.65V to 5.5V and provides an output drive capability of ±24mA at 3.3V. The device incorporates IOFF circuitry to support partial power-down applications by disabling the output and preventing damaging current backflow. Its inputs are tolerant to 5.5V, facilitating direct interface with TTL levels in mixed-voltage environments.

Feature Summary

• Features a single non-inverting buffer with a 3-state output that enters a high-impedance state when the output enable pin receives a HIGH-level signal.
• Includes dedicated IOFF circuitry designed for partial power-down mode operation to prevent damaging current backflow when the device is powered down.
• Inputs accept up to 5.5V, allowing compatibility with mixed-voltage environments and direct interfacing with TTL logic levels.

Applications

• Voltage level shifting
• General purpose logic
• Power down signal isolation

Procurement Notes

Verify the package code Z corresponds to SOT553 (1.6mm x 1.6mm) and confirm the -7 suffix indicates a 4,000-unit tape and reel quantity. Ensure the specific revision DS32202 Rev. 10 matches the required datasheet version for design-in compliance.

Selection Notes

Select this component for designs requiring a compact single-channel buffer with 3-state control. The SOT553 package offers a small footprint suitable for space-constrained PCB layouts. Verify that the 5.5V input tolerance meets the requirements for interfacing with higher voltage logic sources.

Part Context

This part belongs to the 74LVC1G125 series of single buffers with 3-state outputs from Diodes Incorporated. The 'Z' suffix specifically denotes the SOT553 surface-mount package, while the '-7' suffix indicates the standard 4,000-unit tape and reel packaging format used for automated assembly processes.

Replacement Considerations

Other packages in the same family include 74LVC1G125W5-7 (SOT25), 74LVC1G125SE-7 (SOT353), and 74LVC1G125FX4-7 (X2-DFN1409-6). These alternatives share identical electrical characteristics but differ in physical dimensions and pinout configurations.

FAQ

How does the device handle partial power-down scenarios?

The device includes IOFF circuitry that disables the output when powered down, effectively preventing damaging current backflow through the I/O pins.

What is the function of the OE pin?

The Output Enable (OE) pin controls the 3-state output. When a HIGH-level signal is applied to OE, the output enters a high-impedance state.