MC74VHC126DR2G-Q

Overview

The MC74VHC126DR2G-Q is a quad bus buffer with three-state outputs from the onsemi 74VHC logic family. It operates within a supply voltage range of 2.0 V to 5.5 V and features low static current consumption. The device is qualified under AEC-Q100 standards for automotive applications, ensuring reliability in demanding environments. It supports surface-mount installation in a TSSOP-14 package and functions across an extended temperature range from -55°C to +125°C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards
• Quad configuration providing four independent non-inverting buffers
• Three-state output capability for effective bus line management
• Wide operating voltage range supporting both 3.3 V and 5 V systems

Applications

• Automotive electronic control units requiring robust signal buffering
• High-density data buses in consumer electronics
• Portable devices utilizing battery-powered low-voltage operation
• Industrial control systems needing wide temperature tolerance

Procurement Notes

Verify the specific suffix 'Q' indicates AEC-Q100 automotive qualification status against the manufacturer's official datasheet. Confirm that the DR2G designation corresponds to the TSSOP-14 package type and reel packaging specifications. Ensure compatibility with system voltage levels and thermal requirements before integration.

Selection Notes

Select this component when automotive reliability and wide voltage operation are required. Compare pinout compatibility with existing designs using standard 74VHC logic families. Evaluate power consumption benefits due to low static current characteristics. Consider package size constraints relative to available PCB space for TSSOP-14 implementations.

Part Context

This part belongs to the 74VHC series of high-speed CMOS logic devices manufactured by onsemi. The series is known for silicon gate technology offering fast switching speeds and low power dissipation. The MC74VHC126 variant specifically provides buffered output functionality, distinguishing it from inverters or gates within the same logical family architecture.

Replacement Considerations

Check for direct equivalents such as MC74VHC126DTR2G-Q which shares identical electrical characteristics but differs in tape-and-reel length specifications. Verify package compatibility if substituting with other manufacturers' quad bus buffers meeting similar voltage and speed requirements.