component
SN74AHCT125NSR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOP-14-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74AHCT125NSR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOP-14-208mil
SN74AHCT125NSR from Texas Instruments, in a SOP-14-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Output enable for buffer 1; LOW enables gate to pass 1A to 1Y, HIGH produces high impedance state |
| 2 | 1A | input | Data input for buffer 1; passed to output 1Y when 1OE is LOW |
| 3 | 1Y | tri_state | 3-state data output for buffer 1; passes 1A when 1OE is LOW, high impedance when 1OE is HIGH |
| 4 | 2OE | input | Output enable for buffer 2; LOW enables gate to pass 2A to 2Y, HIGH produces high impedance state |
| 5 | 2A | input | Data input for buffer 2; passed to output 2Y when 2OE is LOW |
| 6 | 2Y | tri_state | 3-state data output for buffer 2; passes 2A when 2OE is LOW, high impedance when 2OE is HIGH |
| 7 | GND | power_in | Ground pin; 0V reference |
| 8 | 3Y | tri_state | 3-state data output for buffer 3; passes 3A when 3OE is LOW, high impedance when 3OE is HIGH |
| 9 | 3A | input | Data input for buffer 3; passed to output 3Y when 3OE is LOW |
| 10 | 3OE | input | Output enable for buffer 3; LOW enables gate to pass 3A to 3Y, HIGH produces high impedance state |
| 11 | 4Y | tri_state | 3-state data output for buffer 4; passes 4A when 4OE is LOW, high impedance when 4OE is HIGH |
| 12 | 4A | input | Data input for buffer 4; passed to output 4Y when 4OE is LOW |
| 13 | 4OE | input | Output enable for buffer 4; LOW enables gate to pass 4A to 4Y, HIGH produces high impedance state |
| 14 | VCC | power_in | Power supply pin; 4.5V to 5.5V recommended operating range |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOP-14-208mil |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
SN74AHCT125NSR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOP-14-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74ahct125nsr-etched.step/sn74ahct125nsr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahct125nsr.step/sn74ahct125nsr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (41 pp, sha256
d4686809d3c75759, retrieved 2026-09-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).