74LVC126AT14-13

Overview

The 74LVC126AT14-13 is a quadruple 3-state buffer manufactured by Diodes Incorporated in the TSSOP-14 package. It operates within a supply voltage range of 1.65V to 5.5V and features inputs tolerant to 5.5V for mixed-voltage environments. The device sinks 24mA at VCC = 3.3V and includes IOFF circuitry to support partial-power-down mode, preventing damaging current backflow when powered down.

Feature Summary

• Provides four independent buffers with individually controlled 3-state outputs via active-high OE pins.
• Supports partial-power-down applications through integrated IOFF circuitry that disables outputs during power-down.
• Features CMOS low power consumption and high ESD protection exceeding JESD 22 standards.

Applications

• Voltage level shifting between different logic families
• General-purpose logic buffering
• Power down signal isolation

Procurement Notes

Verify the specific ordering suffix '-13' corresponds to the Tape & Reel packing configuration as defined in the manufacturer's documentation. Confirm the package code 'T14' matches the required TSSOP-14 footprint for your PCB layout. Ensure compliance with RoHS 3 and REACH directives if applicable to your region. Cross-reference the document number DS35266 Rev. 4 - 2 for the most current technical specifications.

Selection Notes

Select this component when designing systems requiring voltage translation between 1.65V and 5.5V domains. The 5.5V input tolerance allows direct interfacing with 3.3V or 5.5V logic sources without additional level shifters. The IOFF feature is critical for bus hold applications where devices may be powered down while others remain active.

Part Context

This part belongs to the 74LVC126A family of quadruple 3-state buffers from Diodes Incorporated. It is functionally equivalent to other manufacturers' LVC series buffers but utilizes Diodes' specific manufacturing processes. The TSSOP-14 variant offers a compact surface-mount solution compared to the SO-14 option.

Replacement Considerations

Direct pin-compatible substitutes include the 74LVC126AS14-13 (SO-14 package) from the same manufacturer. Other LVC-series quad buffers with similar electrical characteristics may serve as functional replacements if package constraints allow.