MC74VHC1G125DT1G

Overview

The MC74VHC1G125DT1G is a single non-inverting 3-state buffer from the onsemi 74VHC series, housed in an SC-88A (SOT-353) package. It operates within a supply voltage range of 2.0 V to 5.5 V and supports propagation delays as low as 3.5 ns at 5 V with a 15 pF load. The device features CMOS-level input thresholds, providing high noise immunity and stable output through its three-stage internal circuit. It offers source/sink currents of 8 mA at 3.0 V and includes over-voltage tolerant inputs and outputs up to 5.5 V.

Feature Summary

• Single-channel non-inverting buffer with 3-state output capability for bus line driving
• CMOS-level input thresholds ensuring high noise immunity and stable operation
• Over-voltage tolerant I/O structures allowing safe interfacing between 5 V and 3 V circuits
• Supports partial power down protection via IOFF feature to minimize leakage current

Applications

• Bus-oriented communications systems requiring signal buffering
• Clock distribution networks for timing signals
• Memory module address and data line drivers
• General-purpose logic level translation between different voltage domains

Procurement Notes

Verify the specific suffix 'DT1G' corresponds to the SC-88A package and tape & reel shipping configuration. Confirm that the 'G' suffix indicates lead-free and halogen-free compliance. Check for any automotive '-Q' variants if unique site control or AEC-Q100 qualification is required for the target application environment.

Selection Notes

Select this component when a compact single-buffer solution with 3-state control is needed. Ensure the design utilizes CMOS-level input thresholds rather than TTL levels, which would require the MC74VHC1GT125 variant. Verify that the operating temperature range of -55°C to +125°C meets the environmental requirements of the final assembly.

Part Context

This part belongs to the MC74VHC1G125 family of single non-inverting buffers. It shares functional characteristics with other packages in the series, such as DBVT1G (SC-74A) and DFT1G (SC-88A), differing primarily in physical footprint and pin orientation. The device is designed for low-power applications requiring high-speed performance in minimal space.

Replacement Considerations

Direct package-compatible replacements include MC74VHC1G125DFT1G. Cross-package equivalents with identical electrical specifications are available in SC-74A (MC74VHC1G125DBVT1G) and UDFN6 formats. For TTL input threshold requirements, consider the MC74VHC1GT125 series instead.