# 74LVC1G126DBVRG4

**Texas Instruments** · Buffer/Driver/Transceiver · SOT-23-5

74LVC1G126DBVRG4 from Texas Instruments, in a SOT-23-5. 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 | OE | input | Output enable input: when OE is low the Y output is disabled (high impedance), and when OE is high the A input flows to Y. Tie OE to GND to hold Y in high impedance during power-up and power-down. |
| 2 | A | input | Data input, specified for 0 V to 5.5 V regardless of VCC; unused inputs must be tied to VCC or GND and must not be left floating. |
| 3 | GND | power_in | Ground pin; the continuous current through GND is limited to ±100 mA together with VCC. |
| 4 | Y | tri_state | Three-state push-pull output rated at -24 mA IOH and 24 mA IOL at VCC = 3 V, with continuous output current limited to ±50 mA; do not tie it directly to VCC or GND, and unused outputs may be left open. |
| 5 | VCC | power_in | Supply pin with a recommended operating range of 1.65 V to 5.5 V and an absolute maximum of 6.5 V; a 0.1 µF bypass capacitor to GND is recommended. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Logic ICs |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `74LVC1G126DBVRG4`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `74lvc1g126dbvrg4-etched.step` / `74lvc1g126dbvrg4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74lvc1g126dbvrg4.step` / `74lvc1g126dbvrg4.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn74lvc1g126) (49 pp, sha256 `6a7a6156ff122d7e`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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).

[Datasheet PDF](docs/74lvc1g126dbvrg4-datasheet.pdf)