# M24128-BWMN6TP

**STMicroelectronics** · EEPROM · SOIC-8

M24128-BWMN6TP from STMicroelectronics, in a SOIC-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 | E0 | input | Chip Enable address input bit 0. Sets bit b1 of the 7-bit I2C device select code. Must be tied to VCC or VSS; a floating input is read as 0. |
| 2 | E1 | input | Chip Enable address input bit 1. Sets bit b2 of the 7-bit I2C device select code. Must be tied to VCC or VSS; a floating input is read as 0. |
| 3 | E2 | input | Chip Enable address input bit 2. Sets bit b3 of the 7-bit I2C device select code. Must be tied to VCC or VSS; a floating input is read as 0. |
| 4 | VSS | power_in | Ground reference for the VCC supply voltage. |
| 5 | SDA | bidirectional | I2C Serial Data. Open-drain bidirectional pin used to transfer data in and out of the device; requires an external pull-up resistor to VCC. |
| 6 | SCL | input | I2C Serial Clock input. Strobes data on SDA(in) into the device and clocks data out on SDA(out). Supports 100 kHz, 400 kHz and 1 MHz operation. |
| 7 | WC | input | Write Control (active-low). When driven high, write operations to the entire memory array are inhibited (device-select and address bytes are still acknowledged, data bytes are not). When driven low or left floating, writes are enabled. |
| 8 | VCC | power_in | Supply voltage input. M24128-BW operating range: 2.5 V to 5.5 V. Decouple with a 10 nF to 100 nF capacitor close to the VCC/VSS pins. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `M24128-BWMN6TP`
- `M24128-BWMN6TPDW`
- `M24128-BWMN6TPBN`
- `M24128-BWMN6TPMC`
- `M24128-BWMN6TPCS`
- `M24128-BWMN6TPDFCS6TP`
- `M24128-BWMN6TPDFCS6TK`

## CAD (KiCad official)

- Symbol: `M24128-BWMN6TP`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `m24128-bwmn6tp-etched.step` / `m24128-bwmn6tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `m24128-bwmn6tp.step` / `m24128-bwmn6tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/m24128-bwmn6tp.pdf) (39 pp, sha256 `0e2a0fea8bcb195e`, 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/m24128-bwmn6tp-datasheet.pdf)