74AHC126T14-13

Overview

The 74AHC126T14-13 is a quadruple 3-state buffer manufactured by Diodes Incorporated in the AHC logic family. It operates within a supply voltage range of 2.0V to 5.5V and features four independent non-inverting buffers with separate active-high enable pins. The device provides outputs capable of sourcing or sinking 8mA at VCC = 4.5V. Inputs tolerate up to 5.5V, facilitating mixed-voltage translation. It utilizes TSSOP-14 surface-mount packaging and includes Schmitt trigger action at all inputs for noise immunity.

Feature Summary

• Provides four independent buffer gates with separate high-level data enable controls
• Inputs tolerate 5.5V signals, enabling direct interfacing between 3.3V and 5.5V systems
• Features Schmitt trigger action at all inputs to improve noise rejection
• Outputs are capable of driving loads with 8mA sink or source current capability

Applications

• General purpose logic applications
• PCs, networking equipment, notebooks, and netbooks
• Computer peripherals including hard drives and CD/DVD ROMs
• TV, DVD, DVR, and set-top box electronics

Procurement Notes

Verify the specific package type matches the design requirements, as the T14 suffix indicates TSSOP-14. Confirm RoHS compliance and lead-free status if environmental regulations apply. Ensure the active-high enable logic aligns with the system control scheme. Validate that input voltage levels do not exceed the absolute maximum ratings during operation.

Selection Notes

Select this component when designing circuits requiring voltage translation between 3.3V and 5.5V domains. The AHC series offers faster switching speeds compared to standard HC logic while maintaining CMOS power consumption. Verify that the 8mA output drive strength meets the load requirements of the destination circuitry without exceeding thermal limits.

Part Context

This part belongs to the 74AHC126 family of quadruple 3-state buffers. The 'T14' designation specifically identifies the TSSOP-14 surface-mount package variant. Other variants include the SO-14 package (S14 suffix). The '-13' suffix denotes tape and reel packaging for automated assembly processes.

Replacement Considerations

The 74AHC126S14-13 serves as a pin-compatible alternative utilizing the SO-14 package instead of TSSOP-14.