SN74AUC2G125DCUR
Public Unreviewedby Ray
Texas Instruments Buffer/Driver/Transceiver, VSSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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README
markdownSN74AUC2G125DCUR
Texas Instruments · Buffer/Driver/Transceiver · VSSOP-8
SN74AUC2G125DCUR from Texas Instruments, in a VSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Active-low output-enable for buffer 1. When low, buffer 1 output (1Y) is enabled and follows 1A; when high, 1Y is placed in the high-impedance (3-state) condition. Should be tied to VCC through a pull-up during power-up/down to guarantee Hi-Z. |
| 2 | 1A | input | Data input for buffer 1. Logic level is passed to 1Y when 1OE is asserted low. Input voltage range 0 to 3.6 V; VIH = 0.65×VCC (typical 1.1-1.95 V operation). |
| 3 | 2Y | tri_state | 3-state buffered output of buffer 2. Drives ±8 mA at VCC = 1.8 V; high-impedance when 2OE is high. Output voltage range 0 to VCC in active state, 0 to 3.6 V in 3-state. |
| 4 | GND | power_in | Ground reference (0 V) for the device. |
| 5 | 2A | input | Data input for buffer 2. Logic level is passed to 2Y when 2OE is asserted low. Input voltage range 0 to 3.6 V (3.6-V I/O tolerant). |
| 6 | 1Y | tri_state | 3-state buffered output of buffer 1. Drives ±8 mA at VCC = 1.8 V; high-impedance when 1OE is high. |
| 7 | 2OE | input | Active-low output-enable for buffer 2. When low, buffer 2 output (2Y) is enabled and follows 2A; when high, 2Y is placed in the high-impedance (3-state) condition. Tie to VCC through a pull-up to guarantee Hi-Z during power sequencing. |
| 8 | VCC | power_in | Positive supply voltage. Operating range 0.8 V to 2.7 V (specified for 1.65 V to 1.95 V operation). Absolute maximum 3.6 V. Bypass locally with a ceramic capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Logic |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
SN74AUC2G125DCURSN74AUC2G125DCURDCTRSN74AUC2G125DCURYZPR
CAD (KiCad official)
- Symbol:
SN74AUC2G125DCUR - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
sn74auc2g125dcur.step |
122 KB | You want the bare part, or you mark your own boards. |
sn74auc2g125dcur-etched.step |
3.1 MB | You want the part with SN74AUC2G125DCUR already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 751 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (20 pp, sha256
a72ff9b4c5c944be, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).