# 74LVC1G240DBVRG4

**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOT-23-5

74LVC1G240DBVRG4 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: the output is disabled (high-impedance) when OE is high, and OE should be tied to VCC through a pullup resistor to keep the output high-impedance during power up or power down, with the minimum resistor value set by the driver's current-sinking capability. |
| 2 | A | input | Data input A of the inverting buffer, which accepts input voltages up to 5.5 V, with an absolute maximum input voltage rating of 6.5 V. |
| 3 | GND | power_in | Ground pin. |
| 4 | Y | tri_state | Inverting 3-state output Y, rated for ±24 mA output drive at 3.3 V and a continuous output current of ±50 mA absolute maximum. |
| 5 | VCC | power_in | Supply pin supporting 5 V VCC operation, with an absolute maximum supply voltage of 6.5 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `74LVC1G240DBVRG4`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `74lvc1g240dbvrg4-etched.step` / `74lvc1g240dbvrg4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74lvc1g240dbvrg4.step` / `74lvc1g240dbvrg4.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/sn74lvc1g240) (42 pp, sha256 `44c6414940caef3c`, retrieved 2026-10-08, tier: lcsc)
- **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/74lvc1g240dbvrg4-datasheet.pdf)