LM239DR

@@ -0,0 +1,57 @@+# LM239DR++**Texas Instruments** · Comparators · SOIC-14++LM239DR from Texas Instruments, 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 | 1OUT | output | Open-collector output of comparator 1. Requires an external pull-up resistor to a positive supply (typ. 3 V to 36 V). Can sink up to ~16 mA. |+| 2 | 2OUT | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. |+| 3 | VCC | power_in | Positive supply voltage. Single-supply range 2 V to 36 V, or split-supply ±1 V to ±18 V. |+| 4 | 2IN- | input | Inverting input of comparator 2. |+| 5 | 2IN+ | input | Non-inverting input of comparator 2. |+| 6 | 1IN- | input | Inverting input of comparator 1. |+| 7 | 1IN+ | input | Non-inverting input of comparator 1. |+| 8 | 3IN+ | input | Non-inverting input of comparator 3. |+| 9 | 3IN- | input | Inverting input of comparator 3. |+| 10 | 4IN+ | input | Non-inverting input of comparator 4. |+| 11 | 4IN- | input | Inverting input of comparator 4. |+| 12 | GND | power_in | Ground / negative supply. Tied to 0 V in single-supply operation, or to the negative rail in split-supply operation. |+| 13 | 4OUT | output | Open-collector output of comparator 4. Requires an external pull-up resistor. |+| 14 | 3OUT | output | Open-collector output of comparator 3. Requires an external pull-up resistor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-14 |+| Category | Op-amp/Cmp |+| Pins | 14 |++## Ordering variants++- `LM239DRDR`+- `LM239DRD`+- `LM239DRN`+- `LM239DRPW`+- `LM239DRPWR`++## CAD (KiCad official)++- Symbol: `LM239DR`+- 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:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lm239.pdf) (53 pp, sha256 `97e6781f0239a05e`, 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/lm239dr-datasheet.pdf)

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