component

AT24CS32-STUM-T

Public Made by Adom

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Microchip Memory, SOT-23-5. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.

componentmemoryat24cs32-stum-tboard-derived

Verified AT24CS32-STUM-T

by Claude, at Caleb Taylor's request · last 27 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 3 records

27 Oct 2026Claude, at Caleb Taylor's requestValidated against Microchip's AT24CS32 data sheet (DS20006341B, May 2024); 3D model replaced with the TSOT-23-5 modelfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓Datasheet: replaced the LCSC copy (Atmel 8869C, January 2015) with Microchip's current DS20006341B (May 2024) from ww1.microchip.com
  • ✓All 5 pins match the 5-Lead SOT23 top-view drawing (p.4) and Table 2-1 (p.5): 1 SCL, 2 GND, 3 SDA, 4 VCC, 5 WP; no renames (the drawing prints Vcc, Table 2-1 and section 2.6 VCC); A0-A2 do not exist on the SOT23 version
  • ✓Pin types agree with Table 2-1 and sections 2.2-2.6: SCL and WP inputs, SDA open-drain bidirectional, VCC and GND power
  • ✓Descriptions rewritten from sections 2.2-2.6 (p.5-6)
  • •Footprint vs Microchip TSOT land pattern C04-23344 Rev B (p.30): pitch 0.95 mm, pad width 0.60 = X1 0.60; KiCad pads 1.325 mm long with centres 2.275 mm apart vs C 2.60 / Y1 1.05, spanning 0.475-1.80 mm from centre and covering the feet (E/2 = 1.40, L 0.30-0.60); pin 1 top-left with pins 1-3 down the left column (drawing rotated 90 degrees, numbering counter-clockwise)
  • ✓DigiKey AT24CS32-STUM-TTR-ND and Mouser 556-AT24CS32-STUM-T confirmed as AT24CS32-STUM-T by Microchip (2026-10-27)
  • ✓3D source: tier 1 none (Microchip's AT24CS32 product page "CAD Models" button loads a third-party ECAD viewer in an iframe (productpagecadmodels.js); there is no manufacturer STEP download with redistribution terms (2026-10-27).) Tier 2: KiCad library 3D model Package_TO_SOT_SMD.3dshapes/TSOT-23-5.step (master, retrieved 2026-10-27), original bytes kept as vendor/AT24CS32-STUM-T-kicad-original.step (sha256 recorded in provenance/3d-model.json); terms: KiCad libraries licence: CC-BY-SA 4.0 with the KiCad library exception (https://gitlab.com/kicad/libraries/kicad-packages3D/-/blob/master/LICENSE.md); file header "Copyright (C) 2025, KiCAD". Attribution: KiCad library team.
  • ✓3D body vs drawing: overall height 0.95 mm (etched 0.955): A max 1.10: pass; standoff 0.10 (generator A1): A1 max 0.10: pass (at the limit); body thickness 0.85 (generator A2): A2 0.70-1.00: pass; lead span 2.80, body 1.60 x 2.90: E 2.80, E1 1.60, D 2.90 BSC: pass; feet 0.35 wide, 0.15 thick, 0.45 long (generator L): b 0.30-0.50, c 0.08-0.20, L 0.30-0.60: pass; leads: three at x -1.40..-1.07 (y -0.95, 0, +0.95), two at x +1.07..+1.40 (y +/-0.95): on footprint pads 1-3 and 4-5: pass
  • ✓3D pose: at24cs32-stum-t.step and at24cs32-stum-t-etched.step are Z-up, seated on z = 0, centred on the footprint origin (offset 0.0 mm), footprint (model) binding identity (step_pose.py); the source was built in the footprint frame, so the transform is identity; the etched file adds the adom-chip-laser MPN inlay on the top face; GLBs from step2glb convert; footprint (model) path now ${KICAD10_3DMODEL_DIR}/Package_TO_SOT_SMD.3dshapes/TSOT-23-5.step with only that line changed (pads untouched); provenance/3d-model.json records source, terms, hashes, transform and checks
  • ✓Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL
  • ✓component-page-verify: all checks pass
Evidencedatasheet (Microchip DS20006341B)
Verified files✓ at24cs32-stum-t.kicad_sym✓ at24cs32-stum-t.kicad_mod✓ at24cs32-stum-t.step
8 Oct 2026Claude (AI build)Datasheet pins not matched to a symbol pin: A0, A1, A2superseded
reviewfor all variants
  • •Datasheet pins not matched to a symbol pin: A0, A1, A2
8 Oct 2026Claude (AI build)Automated build checks (awaiting human validation)superseded
SymbolFootprint3D modelPinsfor all variants
  • ✓Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)
  • ✓3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)
  • ✓adom-lbr generate + lint passed
  • ✓5 of 5 pins described from the datasheet (adom-ds2sf, page-cited)
  • •Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing
Evidencedatasheet
Verified files! at24cs32-stum-t.kicad_sym! at24cs32-stum-t.kicad_mod! at24cs32-stum-t.step
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Generated by board-derived · KiCad file format 20241209
Name Last commit message Last updated
docs Publish 0.1.1 · Caleb 1d ago
provenance Publish 0.1.1 · Caleb 1d ago
vendor Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t-etched.glb Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t-etched.step Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t-hero.glb Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t-hero.overlay.json Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t.glb Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t.kicad_mod Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t.kicad_sym Publish 0.1.3 · Caleb 1d ago
at24cs32-stum-t.lbr Publish 0.1.1 · Caleb 1d ago
at24cs32-stum-t.step Publish 0.1.1 · Caleb 1d ago
package.json Publish 0.1.3 · Caleb 1d ago
page.json Set visibility: public · Caleb 1d ago
README.md Publish 0.1.1 · Caleb 1d ago
verification.json Publish 0.1.3 · Caleb 1d ago

AT24CS32-STUM-T

Microchip · Memory · SOT-23-5

AT24CS32-STUM-T from Microchip, in a SOT-23-5. Symbol and footprint are the ones used on Adom board designs (KiCad official libraries); the 3D model is KiCad's TSOT-23-5 library model, checked against Microchip's NMB package drawing. Pin functions are extracted from the manufacturer datasheet with page references.

Pinout

Pin Name Type Function
1 SCL input Serial Clock: clocks data into and out of the device; data on SDA is latched on the rising edge of SCL and clocked out on the falling edge. Force SCL high when the bus is idle or pull it high with an external resistor. [datasheet p.5]
2 GND power_in Ground: the ground reference for the power supply; connect to the system ground. [datasheet p.5]
3 SDA bidirectional Serial Data: open-drain bidirectional input/output for data transfer; pull high with an external resistor not exceeding 10 kΩ; may be wire-ORed with other open-drain or open-collector pins on the bus. [datasheet p.5]
4 VCC power_in Device Power Supply [datasheet p.6]; VCC = 1.7 V to 5.5 V. [datasheet p.1]
5 WP input Write-Protect: connected to GND allows normal write operations; connected directly to VCC inhibits all write operations to the protected memory. Internally pulled down to GND if left floating; tie it to a known state (pull-up of 10 kΩ or less). [datasheet p.5]

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-23-5
Category Memory
Pins 5
LCSC C147891
Ordering code AT24CS32-STUM-T (SOT23, package drawing code NMB, tape and reel)
Mouser 556-AT24CS32-STUM-T
DigiKey AT24CS32-STUM-TTR-ND
Distributor summary (LCSC listing, not datasheet) -40℃+85℃ 1,000,000 cycles 1.7V5.5V 100 Years 1MHz 32Kbit 5ms Hardware write protection function、Noise suppression function I2C SOT-23-5 EEPROM ROHS

CAD

  • Symbol: at24cs32-stum-t (source library Memory_EEPROM:AT24CS32-STUM)
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model path in footprint: ${KICAD10_3DMODEL_DIR}/Package_TO_SOT_SMD.3dshapes/TSOT-23-5.step (KiCad library model, CC-BY-SA 4.0 with the KiCad library exception; checked against Microchip drawing C04-21344 Rev B; original bytes in vendor/, checks in provenance/3d-model.json)
  • 3D files: at24cs32-stum-t-etched.step / at24cs32-stum-t-etched.glb carry the MPN etch as a separate Adom.LaserEtch part; at24cs32-stum-t.step / at24cs32-stum-t.glb are the bare model.
  • EAGLE/Fusion library: at24cs32-stum-t.lbr (adom-lbr)

Provenance

  • Datasheet: Microchip AT24CS32 data sheet (DS20006341B, Revision B (May 2024), sha256 4a659cafd5a526fc, retrieved 2026-10-27, tier: mfr)
  • CAD: Footprint and symbol: KiCad official libraries (CC-BY-SA 4.0) as used on Adom boards. 3D model: KiCad library TSOT-23-5.step (CC-BY-SA 4.0 with the KiCad library exception, KiCad library team), checked against Microchip's NMB TSOT drawing C04-21344 Rev B; original bytes in vendor/, see provenance/3d-model.json.
  • Pins: KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7).

Datasheet PDF