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Texas Instruments SN74LVC125AD — Analog & Data Acquisition

SN74LVC125AD 74LVC Buffer, Non-Inverting, 3-State, 14-SOIC

MPNSN74LVC125AD
End of Life

Texas Instruments 74LVC series SN74LVC125AD, Buffer, Non-Inverting, 3-State, 1.65V to 3.6V supply, 24 mA output, -40°C to 125°C, 14-SOIC.

$1.05Ref. price · indicative, final on quote
Texas Instruments SN74LVC125AD datasheet (PDF)
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74LVC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74LVC125AD specifications
ParameterValue
Series74LVC
Logic typeBuffer, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage1.65V ~ 3.6V
Current - output high, low24mA, 24mA
Operating temperature-40°C ~ 125°C (TA)
PackageTube
Case14-SOIC (0.154\", 3.90mm Width)
Number of elements4
Number of bits per element1

Product details

Quad buffer with 3-state outputs for mixed-voltage buses

Each of the four elements handles one bit, with a supply range of 1.65V to 3.6V, making it suitable for bridging 1.8V, 2.5V, or 3.3V logic domains without external level shifters. The 3-state outputs allow multiple devices to share a common bus by disabling individual channels, which is essential for multiplexed data lines in microcontroller or FPGA interfaces.

At 3.3V, the buffer can drive 24 mA per output, sufficient for CMOS inputs, LED indicators, or short PCB traces. The 125°C ceiling also provides margin for self-heating in densely populated boards.

Frequently asked questions

Is SN74LVC125AD obsolete or active?

No discontinuation or last-time-buy notice has been issued.

What does 3-state output mean for SN74LVC125AD?

Each of the four buffer outputs can be independently disabled to a high-impedance state, allowing multiple devices to share a common bus without contention.

Does SN74LVC125AD have a recommended alternative if unavailable?

The SN74LVC2G17QDCKRQ1 is a functionally similar buffer from the same 74LVC family, but it uses Schmitt-trigger inputs and comes in a different package (SC-70). Verify pin compatibility and input threshold requirements before substituting.