74LVC1G125DBVTG4

Overview

The SN74LVC1G125DBVTG4 is a single bus buffer gate with 3-state outputs from the Texas Instruments LVC logic series. It operates within a supply voltage range of 1.65 V to 5.5 V and features one input line and one output line. The device provides high-level output current of -32 mA and low-level output current of 32 mA, with a maximum static current of 10 uA. Propagation delay is specified at 4 ns. It is housed in an SOT-23-5 package and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Provides non-inverting buffering for single data lines with controlled 3-state output capability
• Enables partial-power-down mode operation through dedicated Ioff circuitry that disables outputs to prevent backflow
• Offers robust electrostatic discharge protection exceeding standard human-body and machine model thresholds

Applications

• Point-to-point or multipoint bus architectures requiring signal isolation
• Circuit designs necessitating partial-power-down functionality during standby states
• High-speed digital interfaces utilizing 3-state output control for bus sharing

Procurement Notes

Verify the complete part number including the RE4 or TG4 suffix against official manufacturer documentation to confirm specific tape-and-reel packaging configurations. Ensure the requested component matches the exact SOT-23-5 pinout and electrical specifications defined in the latest datasheet revision. Cross-reference ordering information to validate compliance with RoHS directives and lead-free manufacturing standards required for your assembly process.

Selection Notes

Select this component when a single-channel non-inverting buffer with 3-state control is required for low-voltage applications. The wide operating voltage range accommodates systems transitioning between 1.8 V and 5 V domains. Consider the compact SOT-23-5 footprint for space-constrained layouts where minimal parasitic effects are critical for maintaining signal integrity at high speeds.

Part Context

This device belongs to the SN74LVC1G125 family of single bus buffer gates manufactured by Texas Instruments. The LVC logic series is engineered for low-voltage CMOS operations, offering performance comparable to older TTL standards while consuming significantly less power. The specific DBVTG4 designation indicates the use of the NanoStar (SOT-23-5) package technology, which utilizes die-as-package concepts for enhanced thermal and electrical characteristics.

Replacement Considerations

SN74LVC1G125DBVR

FAQ

How does the Ioff feature function in this buffer?

The Ioff circuitry automatically disables the outputs when the device is powered down, preventing damaging current backflow through the device into the disabled power rail.

What determines the state of the output?

The output is enabled when the output-enable (OE) input is low and disabled when the OE input is high, allowing for precise control over bus access.