SN74AHCT126D

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AHCT126D is a quad bus buffer gate manufactured by Texas Instruments, belonging to the 74AHCT logic family. It features four non-inverting buffers with three-state outputs, designed for high-speed digital applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 14-pin SOIC surface-mount package. It provides an output drive capability of 8 mA at both high and low states, ensuring robust signal transmission across buses.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four independent non-inverting buffer channels for bus signal management
• Features three-state outputs to facilitate multiple driver configurations on shared lines
• Compatible with standard CMOS logic families through TTL-compatible input thresholds

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and address drivers
• Clock buffering and distribution circuits
• Voltage translation between different logic domains

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against the manufacturer's current documentation to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required operating temperature range and packaging style for your design. Cross-reference ordering information directly with official Texas Instruments resources to avoid discrepancies in part identification.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad buffer with three-state control is required for systems operating strictly at 5 V logic levels. The AHCT series ensures compatibility with TTL inputs while maintaining CMOS noise immunity. Consider the physical package constraints and thermal requirements during the initial schematic capture phase to ensure proper board layout integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the broader 74AHC126 family, which includes variants with different supply voltage ranges such as the AHC (2 V to 5.5 V) and automotive-grade Q1 versions. The 'T' designation specifically indicates TTL-compatible input thresholds, distinguishing it from standard AHC parts that accept lower voltage logic signals. This distinction is critical for interface design in mixed-voltage environments.