74LVC2G126HD4-7

Overview

The 74LVC2G126HD4-7 is a dual buffer gate with 3-state outputs manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.65V to 5.5V and features Schmitt trigger inputs for tolerance to slower rise and fall times. The device supports partial power-down applications via IOFF circuitry, which disables outputs to prevent damaging current backflow. It provides ±24mA output drive at 3.3V and includes ESD protection exceeding JESD 22 standards.

Feature Summary

• Dual buffer gate architecture with 3-state outputs
• IOFF circuitry enables partial power-down mode operation
• Schmitt trigger action on all inputs
• ESD protection exceeds JESD 22 Human Body Model and Charged Device Model requirements

Applications

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

Procurement Notes

Verify the package code HD4 corresponds to the X2-DFN2010-8 footprint when reviewing schematic footprints. Confirm that the -7 suffix indicates tape and reel packaging. Ensure design compatibility with the specified operating temperature range of -40°C to +125°C. Check RoHS compliance status against specific regional regulatory requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring dual buffered signals with high impedance states in low-voltage environments. The wide supply voltage range accommodates systems transitioning between different logic levels. Consider the Schmitt trigger inputs if the application involves noisy signals or slow edge rates. Verify that the thermal resistance characteristics of the X2-DFN2010-8 package meet the system's heat dissipation needs.

Part Context

This part belongs to the 74LVC2G126 series of dual buffers. Other variants include the HK3 package (X2-DFN1410-8) and RA3 package (X2-DFN1210-8), all sharing identical electrical specifications but differing in physical dimensions and pin pitch. The HD4 designation specifically identifies the larger X2-DFN2010-8 form factor.

Replacement Considerations

Direct substitutes with identical electrical characteristics and pinouts include the 74LVC2G126HK3-7 and 74LVC2G126RA3-7 from Diodes Incorporated. Cross-manufacturer equivalents must be verified for compatible voltage ranges and output drive capabilities.