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CAT24C64WI-GT3

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by Ray

onsemi EEPROM, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentmemorycat24c64wi-gt3
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README

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CAT24C64WI-GT3

onsemi · EEPROM · SOIC-8

CAT24C64WI-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 Slave address, allowing up to eight CAT24C64 devices to share the same I2C bus. Internally pulled LOW when left floating.
2 A1 input Device address input bit 1. Hard-wired HIGH or LOW to set the Slave address. Internally pulled LOW when left floating.
3 A2 input Device address input bit 2. Hard-wired HIGH or LOW to set the Slave address. Internally pulled LOW when left floating.
4 VSS power_in Ground reference for the device.
5 SDA bidirectional I2C Serial Data I/O. Open-drain in transmit mode; requires an external pull-up resistor to VCC. Data is acquired on the rising edge and delivered on the falling edge of SCL.
6 SCL input I2C Serial Clock input generated by the Master. Schmitt-triggered with noise suppression filter.
7 WP input Write Protect input. When held HIGH, all write operations to memory are inhibited. Internally pulled LOW when left floating, allowing writes.
8 VCC power_in Supply voltage input. Operating range 1.7 V to 5.5 V (Fast-Plus 1 MHz requires VCC >= 2.5 V).

Key specifications

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

Ordering variants

  • CAT24C64WI-GT3W
  • CAT24C64WI-GT3X
  • CAT24C64WI-GT3L
  • CAT24C64WI-GT3Z
  • CAT24C64WI-GT3Y
  • CAT24C64WI-GT3US
  • CAT24C64WI-GT3HU4
  • CAT24C64WI-GT3VP2
  • CAT24C64WI-GT3C4C

CAD (KiCad official)

  • Symbol: CAT24C64WI-GT3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (17 pp, sha256 0e4b6b61af47c300, 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