74HC126S14-13

Overview

The 74HC126S14-13 is a quadruple 3-state buffer manufactured by Diodes Incorporated in an SO-14 package. It operates within a supply voltage range of 2.0V to 6.0V and provides four independent non-inverting buffers with separate active-low enable pins. The device sinks or sources 4mA at VCC = 4.5V, features Schmitt trigger inputs, and includes ESD protection exceeding JESD 22 standards (2kV HBM, 1kV CDM, 200V MM). Operating temperature ranges from -40°C to +125°C.

Feature Summary

• Provides four independent non-inverting buffer gates with separate active-low data enable pins for precise output control.
• Incorporates Schmitt trigger action at all inputs to ensure clean signal transitions and noise immunity.
• Offers robust electrostatic discharge protection meeting JESD 22 standards across multiple testing models.

Applications

• General purpose logic circuits
• PCs, networking equipment, notebooks, and netbooks
• Computer peripherals, hard drives, and CD/DVD ROM drives
• TV, DVD, DVR, and set-top box systems

Procurement Notes

Verify the specific S14 suffix corresponds to the SO-14 package variant when sourcing. Confirm RoHS compliance and halogen-free status requirements against project specifications. Ensure operating conditions remain within the specified 2.0V to 6.0V supply range and -40°C to +125°C temperature limits for reliable performance.

Selection Notes

Select this component for applications requiring high-speed buffering with individual channel enable capabilities. The wide supply voltage range supports diverse system architectures. Consider the SO-14 package dimensions for PCB layout constraints. Verify input transition rates against the recommended operating conditions to maintain signal integrity.

Part Context

This part belongs to the 74HC126 family of quadruple 3-state buffers. It shares functional characteristics with other variants like the TSSOP-14 version but differs in physical packaging. The series is designed for CMOS low power consumption while maintaining standard logic levels suitable for general-purpose digital applications.

Replacement Considerations

The 74HC126T14-13 serves as a direct functional substitute utilizing a TSSOP-14 package instead of the SO-14 form factor. Both devices share identical electrical specifications and pinout configurations, allowing for potential board-level adaptation if footprint modifications are permissible.

FAQ

What is the function of the OE pin?

The OE (Output Enable) pin controls the state of the corresponding buffer output. Driving it low enables the output, while driving it high places the output in a high-impedance state.

Does the device include input protection?

Yes, the device features Schmitt trigger action at all inputs and provides ESD protection that exceeds JESD 22 standards for machine, human body, and charged device models.