74LVC2G125DCUTE4

Overview

The SN74LVC2G125DCUTE4 is a dual bus buffer gate with 3-state outputs from Texas Instruments. It operates within a supply voltage range of 1.65 V to 5.5 V and supports inputs up to 5.5 V. The device features balanced push-pull CMOS outputs capable of driving ±24 mA at 3.3 V. Propagation delay (tpd) ranges from 1 ns to 9.1 ns depending on voltage and temperature. It includes Ioff circuitry for partial-power-down support and exceeds JESD 22 ESD protection ratings.

Feature Summary

• Dual non-inverting buffers with independent output enable controls
• Over-voltage tolerant inputs allowing operation with 5.5 V signals
• Ioff circuitry prevents damaging backflow during power-down states
• Balanced high-drive CMOS push-pull outputs for fast edge rates

Applications

• Cable modem termination systems
• High-speed data acquisition and generation
• Motor controls involving high-voltage interfaces
• Power line communication modems
• Video broadcasting infrastructure platforms

Procurement Notes

Verify the specific package marking and tape-and-reel configuration against the official orderable addendum. Confirm that the DCU package variant matches the required footprint dimensions for PCB layout. Ensure the ordering suffix corresponds to the intended thermal and mechanical specifications provided in the datasheet.

Selection Notes

Select this component when designing circuits requiring level translation from 5.5 V logic down to lower supply voltages. It is suitable for applications needing high drive current into light loads or long PCB traces. Consider the NanoFree packaging technology if space constraints are critical, as it utilizes the die as the package structure.

Part Context

This device belongs to the SN74LVC2G125 family of dual bus buffers. It is part of the broader LVC logic series designed for low-voltage CMOS applications. The family provides standardized functionality for bus holding and direction control across various industrial and consumer electronic systems.

Replacement Considerations

SN74LVC2G125DCTR

FAQ

How does the device handle partial-power-down conditions?

The Ioff circuitry forces inputs and outputs into a high-impedance state when the supply voltage is 0 V, preventing damaging current backflow through the device.

What is the maximum input voltage tolerance?

Inputs can accept voltages up to 5.5 V, allowing them to be driven above the VCC supply level without damage, provided they remain within absolute maximum ratings.