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M93S66-WMN6P
Public Made by Adomby adom
STMicroelectronics EEPROM, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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M93S66-WMN6P
STMicroelectronics · EEPROM · SO-8
M93S66-WMN6P from STMicroelectronics, in a SO-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 | S | input | Chip select input; when low the device is deselected with Q in high impedance and in Standby mode, and driving it high selects the device (Active Power mode). |
| 2 | C | input | Serial clock input that times the serial interface; D is latched on its rising edge and Q changes after its rising edge, with fC from DC to 2 MHz. |
| 3 | D | input | Serial data input that receives instructions, addresses and data to be written, latched on the rising edge of C. |
| 4 | Q | tri_state | Serial data output that shifts data out on the rising edge of C, is Hi-Z when S is low, and gives Ready/Busy status after a write. |
| 5 | VSS | power_in | Ground, the reference for the VCC supply voltage. |
| 6 | W | input | Write protect input; when held low writes to the memory are disabled, and it must be driven high or low and never left floating. |
| 7 | PRE | input | Protection register enable input that must be driven high before and during instructions accessing the Protection Register. |
| 8 | VCC | power_in | Supply voltage of 2.5 V to 5.5 V that must be stable during operation and write cycles, with a 10 nF to 100 nF decoupling capacitor recommended close to VCC/VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Memory |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
M93S66-WMN6P - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
m93s66-wmn6p-etched.step/m93s66-wmn6p-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);m93s66-wmn6p.step/m93s66-wmn6p.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (32 pp, sha256
f351bdea984fc360, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).
# M93S66-WMN6P
**STMicroelectronics** · EEPROM · SO-8
M93S66-WMN6P from STMicroelectronics, in a SO-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 | S | input | Chip select input; when low the device is deselected with Q in high impedance and in Standby mode, and driving it high selects the device (Active Power mode). |
| 2 | C | input | Serial clock input that times the serial interface; D is latched on its rising edge and Q changes after its rising edge, with fC from DC to 2 MHz. |
| 3 | D | input | Serial data input that receives instructions, addresses and data to be written, latched on the rising edge of C. |
| 4 | Q | tri_state | Serial data output that shifts data out on the rising edge of C, is Hi-Z when S is low, and gives Ready/Busy status after a write. |
| 5 | VSS | power_in | Ground, the reference for the VCC supply voltage. |
| 6 | W | input | Write protect input; when held low writes to the memory are disabled, and it must be driven high or low and never left floating. |
| 7 | PRE | input | Protection register enable input that must be driven high before and during instructions accessing the Protection Register. |
| 8 | VCC | power_in | Supply voltage of 2.5 V to 5.5 V that must be stable during operation and write cycles, with a 10 nF to 100 nF decoupling capacitor recommended close to VCC/VSS. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Memory |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `M93S66-WMN6P`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `m93s66-wmn6p-etched.step` / `m93s66-wmn6p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `m93s66-wmn6p.step` / `m93s66-wmn6p.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589013669207924736) (32 pp, sha256 `f351bdea984fc360`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/m93s66-wmn6p-datasheet.pdf)