74LVC126AS14-13

Overview

The 74LVC126AS14-13 is a quadruple 3-state buffer manufactured by Diodes Incorporated in the SO-14 package. It operates within a supply voltage range of 1.65V to 5.5V and supports inputs up to 5.5V for mixed-voltage environments. The device sinks 24mA at VCC = 3.3V, features IOFF circuitry for partial power-down applications, and includes ESD protection exceeding JESD 22 standards (200V MM, 2000V HBM, >1000V CDM). Propagation delay ranges from 1.0ns to 11.3ns depending on voltage.

Feature Summary

• Provides four independent buffers with individually controlled three-state outputs via active-high OE pins.
• Supports mixed-voltage operation with inputs tolerant to 5.5V while operating on supplies as low as 1.65V.
• Includes IOFF circuitry to disable outputs and prevent damaging current backflow during partial power-down states.
• Offers robust ESD protection exceeding JESD 22 requirements across Machine, Human Body, and Charged Device Models.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'S14' confirms the SO-14 surface-mount package type required for your PCB layout. Confirm that the '-13' suffix indicates tape-and-reel packaging compatible with automated assembly equipment. Ensure the component meets RoHS 3 compliance standards if applicable to your manufacturing regulations.

Selection Notes

Select this component when designing circuits requiring non-inverting buffering with high-impedance control capabilities. It is suitable for systems needing voltage translation between 1.65V and 5.5V domains. Consider the SO-14 package dimensions and thermal resistance characteristics for proper heat dissipation in dense layouts.

Part Context

This part belongs to the 74LVC126A family of quadruple 3-state buffers produced by Diodes Incorporated. It shares functional similarities with other LVC series devices but is distinct in its specific pinout and package configuration. The 'A' revision denotes the current manufacturing version with updated specifications compared to earlier iterations.

Replacement Considerations

Cross-reference with 74LVC126AT14-13 for identical functionality in a TSSOP-14 package. Verify compatibility with Nexperia 74LVC126AD,118 for alternative sourcing in SO-14 form factor.

FAQ

How does the IOFF feature function?

The IOFF circuitry disables the output when the device is powered down, preventing damaging current backflow through the I/O pins.

What is the input voltage tolerance?

The inputs are tolerant to 5.5V, allowing the device to interface with 3.3V or 5.5V logic sources even when operating at lower supply voltages.