LM2903M

@@ -0,0 +1,48 @@+# LM2903M++**HGSEMI** · Comparators · SOP-8++LM2903M from HGSEMI, in a SOP-8. 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. |+| 2 | 1IN- | input | Inverting input of comparator 1. |+| 3 | 1IN+ | input | Non-inverting input of comparator 1. |+| 4 | GND | power_in | Ground / negative supply rail (V-). Connect to 0 V in single-supply operation. |+| 5 | 2IN+ | input | Non-inverting input of comparator 2. |+| 6 | 2IN- | input | Inverting input of comparator 2. |+| 7 | 2OUT | output | Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. |+| 8 | VCC | power_in | Positive supply rail. Single-supply operation from 2 V to 36 V, or dual-supply +/-1 V to +/-18 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LM2903MM`++## CAD (KiCad official)++- Symbol: `LM2903M`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/lm2903m-datasheet.pdf) (10 pp, sha256 `f17b943bc6fafd8b`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/lm2903m-datasheet.pdf)

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