# U74LVC2G17G

**UTC Unisonic Tech** · Logic Gates · SOT-363

U74LVC2G17G from UTC Unisonic Tech, in a SOT-363. 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 | 1A | input | Schmitt-trigger input of buffer 1; 5 V tolerant (input range 0 to 5.5 V), and unused inputs must be held at VCC or GND. |
| 2 | GND | power_in | Ground (0 V) reference for the device. |
| 3 | 2A | input | Schmitt-trigger input of buffer 2; 5 V tolerant (input range 0 to 5.5 V), and unused inputs must be held at VCC or GND. |
| 4 | 2Y | output | Buffer 2 output that follows 2A, with ±24 mA drive at VCC = 3.3 V. |
| 5 | VCC | power_in | Supply voltage, operating range 1.65 V to 5.5 V (absolute maximum 6.5 V). |
| 6 | 1Y | output | Buffer 1 output that follows 1A, with ±24 mA drive at VCC = 3.3 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-363 |
| Category | Logic |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 1.65 |  | 5.5 | V | Operating | 3 |
| Input Voltage | VIN | 0 |  | 5.5 | V |  | 3 |
| Output Voltage | VOUT | 0 |  |  | V | High or low state | 3 |
| High-Level Input Voltage | VT+ | 0.7 |  | 1.4 | V | VCC = 1.65 V | 3 |
| High-Level Input Voltage | VT+ | 1 |  | 1.7 | V | VCC = 2.3 V | 3 |
| High-Level Input Voltage | VT+ | 1.3 |  | 2.2 | V | VCC = 3.0 V | 3 |
| High-Level Input Voltage | VT+ | 1.9 |  | 3.1 | V | VCC = 4.5 V | 3 |
| High-Level Input Voltage | VT+ | 2.2 |  | 3.7 | V | VCC = 5.5 V | 3 |
| Low-Level Input Voltage | VT- | 0.3 |  | 0.7 | V | VCC = 1.65 V | 3 |
| Low-Level Input Voltage | VT- | 0.4 |  | 1 | V | VCC = 2.3 V | 3 |
| Low-Level Input Voltage | VT- | 0.6 |  | 1.3 | V | VCC = 3.0 V | 3 |
| Low-Level Input Voltage | VT- | 1.1 |  | 2 | V | VCC = 4.5 V | 3 |
| Low-Level Input Voltage | VT- | 1.4 |  | 2.5 | V | VCC = 5.5 V | 3 |
| Hysteresis Voltage | ΔVT | 0.3 |  | 0.8 | V | VCC = 1.65 V | 3 |
| Hysteresis Voltage | ΔVT | 0.4 |  | 0.9 | V | VCC = 2.3 V | 3 |
| Hysteresis Voltage | ΔVT | 0.4 |  | 1.1 | V | VCC = 3.0 V | 3 |
| Hysteresis Voltage | ΔVT | 0.6 |  | 1.3 | V | VCC = 4.5 V | 3 |
| Hysteresis Voltage | ΔVT | 0.7 |  | 1.4 | V | VCC = 5.5 V | 3 |
| Operating Temperature | TA | -40 |  | 125 | °C |  | 3 |
| Supply Voltage | VCC | -0.5 |  | 6.5 | V |  | 3 |
| Input Voltage | VIN | -0.5 |  | 6.5 | V |  | 3 |
| Output Voltage | VOUT | -0.5 |  | 6.5 | V | High-Impedance / Power-Off State | 3 |
| Output Voltage | VOUT | -0.5 |  |  | V | High State | 3 |
| Input Clamp Current | IIK | -50 |  |  | mA | VIN<0 | 3 |
| Output Clamp Current | IOK | -50 |  |  | mA | VOUT<0 | 3 |
| Output Current | IOUT | -50 |  | 50 | mA |  | 3 |
| VCC or GND Current | ICC | -100 |  | 100 | mA |  | 3 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 3 |
| Storage Temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| High-Level Output Voltage | VOH | 1.2 |  |  | V | VCC=1.65V, IOH=-4mA | 4 |
| High-Level Output Voltage | VOH | 1.9 |  |  | V | VCC=2.3V, IOH=-8mA | 4 |
| High-Level Output Voltage | VOH | 2.4 |  |  | V | VCC=3.0V, IOH=-16mA | 4 |
| High-Level Output Voltage | VOH | 2.3 |  |  | V | VCC=3.0V, IOH=-24mA | 4 |
| High-Level Output Voltage | VOH | 3.8 |  |  | V | VCC=4.5V, IOH=-32mA | 4 |
| Low-Level Output Voltage | VOL |  |  | 0.1 | V | VCC=1.65~5.5V, IOL=100μA | 4 |
| Low-Level Output Voltage | VOL |  |  | 0.45 | V | VCC=1.65V, IOL=4mA | 4 |
| Low-Level Output Voltage | VOL |  |  | 0.3 | V | VCC=2.3V, IOL=8mA | 4 |
| Low-Level Output Voltage | VOL |  |  | 0.4 | V | VCC=3.0V, IOL=16mA | 4 |
| Low-Level Output Voltage | VOL |  |  | 0.55 | V | VCC=3.0V, IOL=24mA | 4 |
| Input Leakage Current | II(LEAK) | -5 |  | 5 | μA | VIN =0 to 5.5V, VCC = 0~5.5V | 4 |
| Power OFF Leakage Current | IOFF | -10 |  | 10 | μA | VIN or VOUT=5.5V, VCC = 0 | 4 |
| Quiescent Supply Current | ICC |  |  | 10 | μA | VIN=VCC or GND, IOUT =0; VCC=1.65~5.5V | 4 |
| Additional Quiescent Supply Current | ΔICC |  |  | 500 | μA | One input at VCC -0.6V; other inputs at VCC or GND, IOUT =0, VCC =3~5.5 V | 4 |
| Propagation delay nA to nY | tPLH, tPHL |  | 3.9 | 9.3 | ns | VCC =1.8V±0.15V, CL=30pF, RL=1KΩ | 4 |
| Propagation delay nA to nY | tPLH, tPHL |  | 1.9 | 5.7 | ns | VCC=2.5V±0.2V, CL=30pF, RL=500Ω | 4 |
| Propagation delay nA to nY | tPLH, tPHL |  | 2.2 | 5.4 | ns | VCC=3.3V±0.3V, CL=50pF, RL=500Ω | 4 |
| Propagation delay nA to nY | tPLH, tPHL |  | 1.5 | 4.3 | ns | VCC=5V±0.5V , CL=50pF, RL=500Ω | 4 |
| Input Capacitance | CI |  | 4 |  | pF | VIN=VCC or GND, VCC=3.3V | 4 |
| Power Dissipation Capacitance | CPD |  | 21 |  | pF | VCC=5V, f=10MHz | 4 |

## CAD (KiCad official)

- Symbol: `U74LVC2G17G`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `u74lvc2g17g-etched.step` / `u74lvc2g17g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u74lvc2g17g.step` / `u74lvc2g17g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907178276904960) (5 pp, sha256 `e580aabf2b1f7311`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/u74lvc2g17g-datasheet.pdf)