# LM339DTR

**XBLW** · Comparators · SOP-14

LM339DTR from XBLW, in a SOP-14. 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 | OUT2 | output | Output of comparator 2. |
| 2 | OUT1 | output | Output of comparator 1. |
| 3 | VCC | power_in | Positive power supply; datasheet gives single supply 2.0V to 36V or dual supply ±1.0V to ±18V. |
| 4 | IN1(-) | input | Inverting input of comparator 1. |
| 5 | IN1(+) | input | Noninverting input of comparator 1. |
| 6 | IN2(-) | input | Inverting input of comparator 2. |
| 7 | IN2(+) | input | Noninverting input of comparator 2. |
| 8 | IN3(-) | input | Inverting input of comparator 3. |
| 9 | IN3(+) | input | Noninverting input of comparator 3. |
| 10 | IN4(-) | input | Inverting input of comparator 4. |
| 11 | IN4(+) | input | Noninverting input of comparator 4. |
| 12 | GND | power_in | Ground. |
| 13 | OUT4 | output | Output of comparator 4. |
| 14 | OUT3 | output | Output of comparator 3. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XBLW |
| Package | SOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `LM339DTR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `lm339dtr-etched.step` / `lm339dtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm339dtr.step` / `lm339dtr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XBLW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602913715805171712) (10 pp, sha256 `ffe44f9b81a139dc`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm339dtr-datasheet.pdf)