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Texas Instruments SN74F125D — Analog & Data Acquisition
Texas Instruments

SN74F125D 74F Buffer, Non-Inverting, 3-State, 14-SOIC

MPNSN74F125D
End of Life

Texas Instruments 74F series SN74F125D, Buffer Non-Inverting, 4.5V–5.5V supply, 3-State outputs, 15mA/64mA drive, 0°C–70°C, 14-SOIC.

$1.18Ref. price · indicative, final on quote
SN74F125D datasheet
Packaging14-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

SN74F125D Technical Specifications
ParameterValue
Series74F
Logic typeBuffer, Non-Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low15mA, 64mA
Operating temperature0°C ~ 70°C (TA)
PackageTube
Case14-SOIC (0.154\", 3.90mm Width)
Number of elements4
Number of bits per element1

Product details

Quad buffer for 5V bus isolation

The Texas Instruments SN74F125D is a quad non-inverting buffer from the 74F series, each channel with independent 3-state output control. It operates from a 4.5V to 5.5V supply and is packaged in a 14-SOIC surface-mount package. The commercial temperature range (0°C to 70°C) suits it for office equipment, appliance controllers, and indoor PCB-level signal distribution where 5V logic is the standard.

Output drive and bus loading

Each buffer can source 15 mA and sink 64 mA, giving it the headroom to drive a heavily loaded 5V bus or multiple CMOS inputs without external line drivers. The 3-state outputs let multiple buffers share a common data line — the output enable per channel is independent, so you can gate each signal individually.

Lifecycle and sourcing

The SN74F125D carries an active lifecycle status and is ROHS3 compliant. No last-time-buy or successor has been announced, so it remains a safe choice for new designs requiring a 5V bipolar buffer.

Frequently asked questions

What is the difference between the SN74F125D and the SN74LS125D?

Both are quad non-inverting buffers with 3-state outputs in a 14-pin SOIC, but the 74F series offers higher speed and stronger output drive (15 mA source / 64 mA sink) compared to the 74LS series, which typically has lower drive and slower propagation delay. The supply voltage range is the same (5V nominal).

Can the SN74F125D be used as a level shifter?

The SN74F125D is a 5V-only device. It can buffer 5V logic signals but cannot translate between 3.3V and 5V domains without external pull-up or level-shift circuitry. For mixed-voltage translation, a dedicated level shifter or a 74LVC series part would be more appropriate.