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CAT24C256WI-GT3 Breakout
EEPROM 256KB I2C 1MHZ 8SOIC
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Design a Custom BoardAbout This Component
256-kilobit serial EEPROM with I2C interface supporting Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) protocols. Features 64-byte page write buffer, hardware write protection, and on-chip ECC for single-bit error correction. Rated for 1 million program/erase cycles with 100-year data retention, operating from 1.8V to 5.5V supply.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | onsemi |
| Part Number | CAT24C256WI-GT3 |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Clock Frequency | 1 MHz |
| Memory Interface | I2C |
| Memory Size | 256Kbit |
| Voltage - Supply | 1.8V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x CAT24C256WI-GT3 soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL