74LVC1G126Z-7

Overview

The 74LVC1G126Z-7 is a single non-inverting buffer and bus driver manufactured by Diodes Incorporated, featuring three-state outputs controlled by an active-high output enable (OE) pin. It operates within a supply voltage range of 1.65V to 5.5V and accepts input voltages up to 5.5V, facilitating mixed-voltage environments. The device incorporates IOFF circuitry to support partial power-down applications by disabling outputs and preventing damaging current backflow when powered down. Packaged in the compact SOT553 format with dimensions of 1.6mm x 1.6mm x 0.62mm, it provides low power consumption and robust ESD protection exceeding 2000V on the human body model.

Feature Summary

• Integrated IOFF circuitry enables safe partial power-down mode operation by preventing reverse current flow during power loss.
• Inputs tolerate up to 5.5V, allowing direct interfacing with TTL levels and compatibility across mixed-voltage logic systems.
• Provides high ESD protection performance that exceeds industry standards for machine, human body, and charged device models.

Applications

• Voltage level shifting between different logic families
• Power down signal isolation in portable electronics
• General purpose logic buffering in computing peripherals

Procurement Notes

Verify the specific package code Z corresponds to the SOT553 footprint before integration. Confirm that the -7 suffix indicates tape and reel packaging compatible with automated assembly equipment. Ensure design margins account for the specified operating temperature range and absolute maximum ratings to maintain reliability.

Selection Notes

Select this component when a single-channel buffer with three-state control is required in space-constrained designs. The SOT553 package offers a smaller footprint compared to standard SOT-23 options while maintaining identical electrical characteristics. Consider the wide supply voltage range if the system requires flexibility between 1.8V and 5V logic domains.

Part Context

This part belongs to the 74LVC1G126 series of single bus buffers produced by Diodes Incorporated. The series includes various package options such as X2-DFN and SOT variants, all sharing the same logical function and electrical specifications. The Z suffix specifically identifies the SOT553 surface-mount package variant within this product family.

Replacement Considerations

Cross-reference with SN74LVC1G126DCKT from Texas Instruments or Nexperia equivalents like the 74LVC1G126GZYL for potential pin-compatible alternatives. Verify that substitute components match the SOT553 package dimensions and IOFF functionality requirements.