MC74VHC1G50DBVT1G

Overview

The MC74VHC1G50DBVT1G is a single non-inverting buffer from the 74VHC series, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 5.5 V and features CMOS level input thresholds. The device provides over-voltage tolerant inputs and outputs up to 5.5 V, enabling safe interfacing between 5 V and 3 V circuits. It supports partial power down protection via IOFF and delivers source/sink currents of 8 mA at 3.0 V. Propagation delay is typically 3.5 ns at 5 V with a 15 pF load. The component is housed in an SC-74A (SC-70-5) package.

Feature Summary

• Advanced high-speed CMOS technology designed for low power consumption and fast switching speeds.
• Input and output structures provide protection against over-voltage conditions up to 5.5 V regardless of supply voltage.
• IOFF feature supports partial power down protection to prevent excessive current draw during standby modes.
• Available in tiny footprint packages suitable for space-constrained portable applications.

Applications

• Interfacing 5 V logic circuits to 3 V logic circuits
• Portable consumer electronics requiring small form factors
• Battery-powered systems utilizing partial power down modes

Procurement Notes

Verify the specific ordering suffix 'DBVT1G' corresponds to the SC-74A package and tape & reel shipping configuration. Confirm that the 'T1G' suffix indicates standard commercial grade availability rather than automotive qualification. Ensure compatibility with SC-74A footprints during PCB layout verification.

Selection Notes

Select this part when a single-channel non-inverting buffer with CMOS input thresholds is required. It is appropriate for designs needing over-voltage tolerance on I/O lines while operating from a single 2.0 V to 5.5 V supply. Consider alternative suffixes if different packaging or automotive qualification is needed.

Part Context

This component belongs to the MC74VHC1G50 family of single buffers. It shares functional similarities with the MC74VHC1GT50, which utilizes TTL input thresholds instead of CMOS levels. Both variants offer identical electrical performance regarding drive strength and propagation delay but differ in input threshold characteristics for noise margin optimization.

Replacement Considerations

MC74VHC1GT50DBVT1G offers equivalent functionality with TTL input thresholds instead of CMOS thresholds. Other single-buffer alternatives in the 74VHC series may be considered if package variations or different input threshold requirements are necessary for the design.