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Texas Instruments 74AHC1G125DBVRG4 — Interface & Transceivers

74AHC1G125DBVRG4 Buffer, Non-Inverting, 3-State, SOT-23-5

MPN74AHC1G125DBVRG4
End of Life

Texas Instruments 74AHC1G125DBVRG4, 74AHC series, single buffer non-inverting, 3-state output, 2V–5.5V supply, 8mA drive, SOT-23-5, -40°C to 125°C.

Texas Instruments 74AHC1G125DBVRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

74AHC1G125DBVRG4 specifications
ParameterValue
Series74AHC
Logic typeBuffer, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage2V ~ 5.5V
Current - output high, low8mA, 8mA
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR)
CaseSC-74A, SOT-753
Number of elements1
Number of bits per element1

Product details

The Texas Instruments 74AHC1G125DBVRG4 is a single-bit, non-inverting buffer with a 3-state output, part of the 74AHC high-speed CMOS logic family. It takes a logic input and drives a clean, buffered copy onto the output when the output-enable pin is asserted; when de-asserted, the output goes high-impedance, letting multiple devices share a bus line without contention.

8 mA output drive — what it can and cannot sink

The output is rated for 8 mA source and 8 mA sink at the rated supply voltage. It will not drive a relay coil directly or fan out to more than a handful of CMOS loads — for heavier loads, plan a transistor or a dedicated line driver after this buffer.

SOT-23-5 package — rework and footprint

It is a hand-solderable size with a standard hot-air station — no thermal pad underneath, so rework is straightforward. The tape-and-reel delivery (TR suffix) is the usual production format for pick-and-place assembly.

Frequently asked questions

What is the closest pin-compatible alternative to 74AHC1G125DBVRG4 in this component family?

Within the 74AHC family, the 74AHC1G125DCKR (SOT-353 package) is functionally identical but uses a different footprint. For a drop-in SOT-23-5 replacement, look at the 74LVC1G125DBVR from the LVC family — same pinout, same package, but operates down to 1.65V. Verify the supply voltage and output drive against your design before substituting.