component

CAT24C32WI-GT3

Public Made by Adom

by adom

onsemi EEPROM, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs cat24c32wi-gt3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
cat24c32wi-gt3-etched.fit.json cat24c32wi-gt3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cat24c32wi-gt3-etched.glb cat24c32wi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
cat24c32wi-gt3-etched.step cat24c32wi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
cat24c32wi-gt3.glb Publish 0.1.0 · Ray
cat24c32wi-gt3.kicad_mod Publish 0.1.0 · Ray
cat24c32wi-gt3.kicad_sym Publish 0.1.0 · Ray
cat24c32wi-gt3.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
cat24c32wi-gt3.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json cat24c32wi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
README.md cat24c32wi-gt3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

CAT24C32WI-GT3

onsemi · EEPROM · SOIC-8

CAT24C32WI-GT3 from onsemi, in a SOIC-8. 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 A0 input Device address input bit 0. Hard-wired HIGH or LOW to set the I2C slave address, allowing up to eight CAT24C32 devices on a single bus. Internally pulled LOW (weak pull-down, ~50 uA max input current) when left floating.
2 A1 input Device address input bit 1. Hard-wired HIGH or LOW to set the I2C slave address. Internally pulled LOW (weak pull-down) when left floating.
3 A2 input Device address input bit 2. Hard-wired HIGH or LOW to set the I2C slave address. Internally pulled LOW (weak pull-down) when left floating.
4 VSS power_in Ground reference for the device.
5 SDA bidirectional I2C Serial Data I/O (open-drain). Data is acquired on the positive edge of SCL and delivered on the negative edge. Requires an external pull-up resistor to VCC. Input capacitance ~8 pF max.
6 SCL input I2C Serial Clock input. Accepts the clock generated by the bus master at up to 100 kHz (Standard), 400 kHz (Fast), or 1 MHz (Fast-Plus). Requires an external pull-up resistor to VCC.
7 WP input Write Protect input. When pulled HIGH, inhibits all write operations to the entire memory array. Internally pulled LOW (weak pull-down, ~130 uA max input current at VCC = 5.5 V) when left floating, so writes are allowed by default.
8 VCC power_in Supply voltage input, 1.7 V to 5.5 V. Powers the EEPROM core and I/O; Fast-Plus (1 MHz) operation requires VCC >= 2.5 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Memory
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • CAT24C32WI-GT3W
  • CAT24C32WI-GT3
  • CAT24C32WI-GT3L
  • CAT24C32WI-GT3Y
  • CAT24C32WI-GT3HU4
  • CAT24C32WI-GT3US
  • CAT24C32WI-GT3C5A
  • CAT24C32WI-GT3C4C

CAD (KiCad official)

  • Symbol: CAT24C32WI-GT3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cat24c32wi-gt3-etched.step / cat24c32wi-gt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cat24c32wi-gt3.step / cat24c32wi-gt3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cat24c32wi-gt3.step 122 KB You want the bare part, or you mark your own boards.
cat24c32wi-gt3-etched.step 2.6 MB You want the part with CAT24C32WI-GT3 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 631 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: onsemi datasheet (16 pp, sha256 58aeb31e57e946d3, retrieved 2026-08-17, tier: manufacturer)
  • 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