MC74VHC125DTR2

Overview

The MC74VHC125DTR2 is a quad bus buffer manufactured by onsemi, belonging to the VHC logic series. It features four non-inverting channels with three-state outputs housed in a TSSOP-14 package. The device operates within a supply voltage range of 2 V to 5.5 V. Key electrical parameters include an output current capability of 8 mA for both high and low states, a static current of 4 uA, and a maximum power dissipation of 200 mW. It supports an operating temperature range from -55°C to +125°C.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control
• Operates across a wide supply voltage range from 2 V to 5.5 V
• Delivers high drive capability with 8 mA output current at both logic levels
• Designed for surface-mount assembly in compact TSSOP-14 packages

Applications

• Memory module address and data bus buffering
• Clock distribution networks requiring signal isolation
• Portable battery-powered equipment due to low static current
• Automotive electronic systems within specified temperature ranges

Procurement Notes

Verify the exact suffix against official datasheets, as 'DTR2' may indicate specific tape-and-reel packaging or regional variants. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the component matches the required voltage and temperature specifications for your target application environment before finalizing procurement orders.

Selection Notes

Select this component when a quad buffer with three-state functionality is required for 2V to 5.5V systems. The VHC series offers faster propagation delays compared to standard HC logic while maintaining CMOS compatibility. Consider the TSSOP-14 package constraints and thermal dissipation limits of 200 mW during PCB layout planning for optimal performance.

Part Context

This part belongs to onsemi's 74VHC family of high-speed CMOS logic devices. The VHC series is designed to bridge the performance gap between standard HC and HCT logic families. It provides improved switching speeds and lower power consumption, making it suitable for modern digital applications requiring efficient signal buffering and level translation capabilities.

Replacement Considerations

Compatible substitutes include MC74VHC125DR2G (SOIC package) and NLV74VHC125DTR2G (automotive grade). Verify pinout compatibility and electrical characteristics before substitution. Ensure the replacement part meets the same voltage, current, and temperature requirements as the original design specification.