component

CAT25256VI-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 cat25256vi-gt3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers cat25256vi-gt3: viewers · Ray
cat25256vi-gt3-etched.fit.json cat25256vi-gt3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cat25256vi-gt3-etched.glb cat25256vi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
cat25256vi-gt3-etched.step cat25256vi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
cat25256vi-gt3.glb Publish 0.1.0 · Ray
cat25256vi-gt3.kicad_mod Publish 0.1.0 · Ray
cat25256vi-gt3.kicad_sym Publish 0.1.0 · Ray
cat25256vi-gt3.lbr Publish 0.1.0 · Ray
cat25256vi-gt3.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
page.json cat25256vi-gt3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
README.md cat25256vi-gt3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

CAT25256VI-GT3

onsemi · EEPROM · SOIC-8

CAT25256VI-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 CS input Active-low SPI Chip Select. A high-to-low transition on CS selects the device and initiates a new instruction sequence; a low-to-high transition deselects it and forces the SO output to high-impedance. Must be held high during standby to minimize supply current.
2 SO output Serial Data Output. Data is shifted out on the falling edge of SCK (MSB first). High-impedance when CS is high or when the device is in HOLD.
3 WP input Active-low Write Protect. When held low together with the WPEN bit in the status register set, the status register is hardware write-protected, preventing changes to the block protection bits. Tie to VCC if unused.
4 VSS power_in Ground reference for all supply and signal levels (0 V).
5 SI input Serial Data Input. Op-codes, addresses and data are shifted in on the rising edge of SCK (MSB first).
6 SCK input SPI Serial Clock input. Supports SPI modes (0,0) and (1,1) up to 20 MHz at VCC >= 4.5 V (10 MHz at VCC >= 2.5 V, 5 MHz at VCC < 2.5 V).
7 HOLD input Active-low Hold input. Pausing serial communication without deselecting the device; when low (with CS low) SO goes high-Z and SI/SCK are ignored. Tie to VCC if unused.
8 VCC power_in Positive supply voltage, 1.8 V to 5.5 V. Typical read current 0.8-3.0 mA depending on VCC/frequency; standby current 1-5 uA.

Key specifications

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

Ordering variants

  • CAT25256VI-GT3
  • CAT25256VI-GT3VE-GT3
  • CAT25256VI-GT3LI-G
  • CAT25256VI-GT3XI-T2
  • CAT25256VI-GT3XE-T2
  • CAT25256VI-GT3YI-G
  • CAT25256VI-GT3YI-GT3
  • CAT25256VI-GT3HU4I-GT3

CAD (KiCad official)

  • Symbol: CAT25256VI-GT3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cat25256vi-gt3-etched.step / cat25256vi-gt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cat25256vi-gt3.step / cat25256vi-gt3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cat25256vi-gt3.step 122 KB You want the bare part, or you mark your own boards.
cat25256vi-gt3-etched.step 2.6 MB You want the part with CAT25256VI-GT3 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 635 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 (18 pp, sha256 15c84e62f165bfbe, 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