# LM239DR-JSM

**JSMSEMI** · Comparators · SOP-14

LM239DR-JSM from JSMSEMI, 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; open-collector output with 16 mA typical sink current and 130 mV typical saturation voltage. |
| 2 | OUT1 | output | Output of comparator 1; open-collector output with 16 mA typical sink current and 130 mV typical saturation voltage. |
| 3 | VCC | power_in | Positive supply; absolute maximum 36 V (or ±18 V split supply). |
| 4 | IN1(-) | input | Inverting input of comparator 1; common-mode range -0.3 V to VCC absolute maximum. |
| 5 | IN1(+) | input | Non-inverting input of comparator 1; common-mode range -0.3 V to VCC absolute maximum. |
| 6 | IN2(-) | input | Inverting input of comparator 2; common-mode range -0.3 V to VCC absolute maximum. |
| 7 | IN2(+) | input | Non-inverting input of comparator 2; common-mode range -0.3 V to VCC absolute maximum. |
| 8 | IN3(-) | input | Inverting input of comparator 3; common-mode range -0.3 V to VCC absolute maximum. |
| 9 | IN3(+) | input | Non-inverting input of comparator 3; common-mode range -0.3 V to VCC absolute maximum. |
| 10 | IN4(-) | input | Inverting input of comparator 4; common-mode range -0.3 V to VCC absolute maximum. |
| 11 | IN4(+) | input | Non-inverting input of comparator 4; common-mode range -0.3 V to VCC absolute maximum. |
| 12 | GND | power_in | Ground, the negative supply reference. |
| 13 | OUT4 | output | Output of comparator 4; open-collector output with 16 mA typical sink current and 130 mV typical saturation voltage. |
| 14 | OUT3 | output | Output of comparator 3; open-collector output with 16 mA typical sink current and 130 mV typical saturation voltage. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM239DR-JSM`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `lm239dr-jsm-etched.step` / `lm239dr-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm239dr-jsm.step` / `lm239dr-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603079462607613952) (5 pp, sha256 `39234bcf485d54ec`, 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/lm239dr-jsm-datasheet.pdf)