LM239DT

@@ -0,0 +1,55 @@+# LM239DT++**STMicroelectronics** · Comparators · SOIC-14++LM239DT from STMicroelectronics, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT2 | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive rail (typ. up to 36 V). Sinks up to ~16 mA when active. |+| 2 | OUT1 | output | Open-collector output of comparator 1. Requires an external pull-up resistor to a positive rail. Sinks up to ~16 mA when active. |+| 3 | VCC+ | power_in | Positive supply rail. Single-supply operation from 2 V to 36 V, or split-supply operation up to ±18 V. Shared by all four comparators. |+| 4 | IN1- | input | Inverting input of comparator 1. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 5 | IN1+ | input | Non-inverting input of comparator 1. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 6 | IN2- | input | Inverting input of comparator 2. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 7 | IN2+ | input | Non-inverting input of comparator 2. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 8 | IN3+ | input | Non-inverting input of comparator 3. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 9 | IN3- | input | Inverting input of comparator 3. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 10 | IN4+ | input | Non-inverting input of comparator 4. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 11 | IN4- | input | Inverting input of comparator 4. Common-mode range extends from GND (V-) up to VCC+ - 1.5 V. |+| 12 | GND | power_in | Ground / negative supply rail (V-). Tied to 0 V for single-supply operation or to the negative rail for split-supply operation. |+| 13 | OUT4 | output | Open-collector output of comparator 4. Requires an external pull-up resistor to a positive rail. Sinks up to ~16 mA when active. |+| 14 | OUT3 | output | Open-collector output of comparator 3. Requires an external pull-up resistor to a positive rail. Sinks up to ~16 mA when active. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOIC-14 |+| Category | Op-amp/Cmp |+| Pins | 14 |++## Ordering variants++- `LM239DTDT`+- `LM239DTN`+- `LM239DTPT`++## CAD (KiCad official)++- Symbol: `LM239DT`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/lm239dt.pdf) (19 pp, sha256 `5adc47258717f516`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm239dt-datasheet.pdf)

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