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M93S66-WMN6P

Public Made by Adom

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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.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 (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