# SA8337-MS

**MSKSEMI** · Brushed DC Motor Drivers · SOP-8

SA8337-MS from MSKSEMI, in a SOP-8. 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 | BI | input | Reverse-direction logic input with VIH of at least 2.2 V and VIL of at most 0.7 V; it must stay low or high-impedance until VCC has been applied for 3 ms (tD), and its frequency must not exceed 30 kHz. |
| 2 | FI | input | Forward-direction logic input with VIH of at least 2.2 V and VIL of at most 0.7 V; it must stay low or high-impedance until VCC has been applied for 3 ms (tD), and its frequency must not exceed 30 kHz. |
| 3 | GND | power_in | Ground terminal; all absolute maximum and electrical voltages are referenced to this pin. |
| 4 | VCC | power_in | Motor and logic supply input with an operating range of 3 V to 18 V and an absolute maximum of 20 V, decoupled close to the pin with the recommended capacitors. |
| 5 | FO | output | Forward H-bridge motor output, high in forward mode and low in reverse or brake mode, rated for a continuous output current of 5.0 A (9.0 A absolute maximum). |
| 6 | FO | output | Forward H-bridge motor output, high in forward mode and low in reverse or brake mode, rated for a continuous output current of 5.0 A (9.0 A absolute maximum). |
| 7 | BO | output | Reverse H-bridge motor output, high in reverse mode and low in forward or brake mode, rated for a continuous output current of 5.0 A (9.0 A absolute maximum). |
| 8 | BO | output | Reverse H-bridge motor output, high in reverse mode and low in forward or brake mode, rated for a continuous output current of 5.0 A (9.0 A absolute maximum). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SA8337-MS`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `sa8337-ms-etched.step` / `sa8337-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sa8337-ms.step` / `sa8337-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603386187122302976) (9 pp, sha256 `784ab8bc7cbbbf08`, retrieved 2026-10-09, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/sa8337-ms-datasheet.pdf)