component
AT21CS01-STUM10-T
Public Made by Adomby adom
Microchip Tech EEPROM, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAT21CS01-STUM10-T
Microchip Tech · EEPROM · SOT-23-3
AT21CS01-STUM10-T from Microchip Tech, in a SOT-23-3. 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 | SI/O | bidirectional | Open-drain serial input/output pin that must be pulled high through an external pull-up resistor, may be wire-ORed with other open-drain devices, and also powers the device from a pull-up voltage of 1.7V to 3.6V for AT21CS01 (2.7V to 4.5V for AT21CS11). |
| 2 | NC | unconnected | No connect; this pin is not connected internally and is listed as NC for the 3-lead SOT23 package in Table 1-1. |
| 3 | GND | power_in | Ground reference for the power supply, which should be connected to the system ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-3 |
| Category | Memory |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
AT21CS01-STUM10-T - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
at21cs01-stum10-t-etched.step/at21cs01-stum10-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at21cs01-stum10-t.step/at21cs01-stum10-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (47 pp, sha256
f03eb80197165397, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).