MC4558CDT

@@ -0,0 +1,52 @@+# MC4558CDT++**STMicroelectronics** · Operational Amplifier · SO-8++MC4558CDT from STMicroelectronics, in a SO-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 | Output 1 | output | Op-amp A output. Class-AB push-pull output stage with short-circuit protection; typical output resistance 75 Ω, output short-circuit current 20 mA typ. |+| 2 | Inverting input 1 | input | Op-amp A inverting input (IN-). High-impedance bipolar input; typical input bias current 50 nA, input resistance 2 MΩ typ. |+| 3 | Non-inverting input 1 | input | Op-amp A non-inverting input (IN+). Common-mode input range ±12 V typical at Vcc = ±15 V. |+| 4 | VCC- | power_in | Negative supply rail. Supply voltage range ±2 V to ±20 V (absolute maximum ±22 V). Shared between both op-amps. |+| 5 | Non-inverting input 2 | input | Op-amp B non-inverting input (IN+). Common-mode input range ±12 V typical at Vcc = ±15 V. |+| 6 | Inverting input 2 | input | Op-amp B inverting input (IN-). High-impedance bipolar input; typical input bias current 50 nA, input resistance 2 MΩ typ. |+| 7 | Output 2 | output | Op-amp B output. Class-AB push-pull output stage with short-circuit protection; typical output resistance 75 Ω. |+| 8 | VCC+ | power_in | Positive supply rail. Supply voltage range ±2 V to ±20 V (absolute maximum ±22 V). Typical total supply current 2.3 mA (both amplifiers, no load). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SO-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `MC4558CDTCD`+- `MC4558CDTCDT`+- `MC4558CDTID`+- `MC4558CDTIDT`+- `MC4558CDTCN`+- `MC4558CDTCPT`++## CAD (KiCad official)++- Symbol: `MC4558CDT`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/mc4558cdt.pdf) (11 pp, sha256 `396f57a6f635dcdb`, 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/mc4558cdt-datasheet.pdf)

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