AT24CSW020-STUM-T

@@ -0,0 +1,47 @@+# AT24CSW020-STUM-T++**Microchip Tech** · EEPROM · TSOT-23-5++AT24CSW020-STUM-T from Microchip Tech, in a TSOT-23-5. 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 | SCL | input | Serial Clock input. Provides the clock to the device and controls data flow on SDA. Data on SDA is latched on the rising edge of SCL, and clocked out on the falling edge. Must be forced high when the bus is idle or pulled high through an external pull-up resistor. |+| 2 | GND | power_in | Ground reference for the device power supply (VCC). Connect to system ground. |+| 3 | SDA | bidirectional | Serial Data. Open-drain bidirectional I/O used to transfer data serially to/from the device. Requires an external pull-up resistor (<=10 kΩ); may be wire-ORed with other open-drain/open-collector devices on the same bus. |+| 4 | VCC | power_in | Device power supply. Operating range 1.7 V to 3.6 V. Bypass with a local decoupling capacitor. Operations at invalid VCC may produce spurious results. |+| 5 | WP | input | Write-Protect input. Tied to GND allows normal write operations; tied directly to VCC inhibits all writes to the protected memory (full array and Security Register). Internally pulled down to GND if left floating (CMOS trip point ~0.5 x VCC). Microchip recommends driving to a known state; when using a pull-up, <=10 kΩ. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Microchip Tech |+| Package | TSOT-23-5 |+| Category | Memory |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `AT24CSW020-STUM-T`+- `AT24CSW020-STUM-TUUM0B-T`++## CAD (KiCad official)++- Symbol: `AT24CSW020-STUM-T`+- Footprint: `Package_TO_SOT_SMD:TSOT-23-5`+- 3D model: TSOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902717617958912) (41 pp, sha256 `baff37fbb4671a91`, retrieved 2026-08-17, tier: lcsc)+- **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/at24csw020-stum-t-datasheet.pdf)

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