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AT24CSW020-STUM-T

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Microchip Tech EEPROM, TSOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs at24csw020-stum-t: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers at24csw020-stum-t: viewers · Ray
at24csw020-stum-t-etched.fit.json at24csw020-stum-t: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
at24csw020-stum-t-etched.glb at24csw020-stum-t: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
at24csw020-stum-t-etched.step at24csw020-stum-t: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
at24csw020-stum-t.glb Publish 0.1.0 · Ray
at24csw020-stum-t.kicad_mod Publish 0.1.0 · Ray
at24csw020-stum-t.kicad_sym Publish 0.1.0 · Ray
at24csw020-stum-t.lbr Publish 0.1.0 · Ray
at24csw020-stum-t.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json at24csw020-stum-t: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
README.md at24csw020-stum-t: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

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)
  • 3D model files: at24csw020-stum-t-etched.step / at24csw020-stum-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24csw020-stum-t.step / at24csw020-stum-t.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (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