# LM293QT

**STMicroelectronics** · Comparators · DFN-8(2x2)

LM293QT from STMicroelectronics, in a DFN-8(2x2). 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 | Out1 | output | Output of first comparator; accepts sink current up to 20 mA with low output saturation voltage 80 mV typical at Isink = 4 mA, TTL/MOS/CMOS compatible. |
| 2 | In1- | input | Inverting input of first comparator; input bias current 20 nA typical, common-mode voltage range 0 to (VCC+) - 1.5 V. |
| 3 | In1+ | input | Non-inverting input of first comparator; input bias current 20 nA typical, common-mode voltage range 0 to (VCC+) - 1.5 V. |
| 4 | Vcc- | power_in | Negative power supply; voltage range -0.3 V to Vcc+ + 0.3 V; combined with Vcc+ provides 2 to 36 V supply voltage. |
| 5 | In2+ | input | Non-inverting input of second comparator; input bias current 20 nA typical, common-mode voltage range 0 to (VCC+) - 1.5 V. |
| 6 | In2- | input | Inverting input of second comparator; input bias current 20 nA typical, common-mode voltage range 0 to (VCC+) - 1.5 V. |
| 7 | Out2 | output | Output of second comparator; accepts sink current up to 20 mA with low output saturation voltage 80 mV typical at Isink = 4 mA, TTL/MOS/CMOS compatible. |
| 8 | Vcc+ | power_in | Positive power supply; voltage range ±18 V or 36 V single supply; combined with Vcc- provides 2 to 36 V supply voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DFN-8(2x2) |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM293QT`
- Footprint: `Package_DFN_QFN:DFN-8_2x2mm_P0.5mm`
- 3D model: DFN-8(2x2) (KiCad packages3D, STEP)
- 3D model files: `lm293qt-etched.step` / `lm293qt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm293qt.step` / `lm293qt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590905790490492928) (18 pp, sha256 `31d06d834156345d`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm293qt-datasheet.pdf)