This document describes 4 Kbit serial I2C bus EEPROM products, including ST24C04, ST25C04, ST24W04, and ST25W04, with user-defined block write protection. The products have 1 million erase/write cycles and 40 years data retention. They operate at a single supply voltage range of 3V to 5.5V.
This document is a technical specification sheet for the ST24/25x04 series of 4 Kbit electrically erasable programmable memories (EEPROM). These devices are organized as two blocks of 256 x 8 bits and utilize STMicroelectronics's Hi-Endurance Advanced CMOS technology. The product line includes standard versions (ST24C04/ST25C04) and hardware write control versions (ST24W04/ST25W04), all compatible with the I2C bus standard.
| Memory Capacity | 4 Kbit |
|---|---|
| Organization | 2 blocks of 256 x8 bits |
| Endurance | 1 million erase/write cycles |
| Data Retention | 40 years |
| Operating Temperature (TA) | -40 to 125 °C |
| Storage Temperature (TSTG) | -65 to 150 °C |
| Supply Voltage (ST24x04) | 3V to 5.5V |
| Supply Voltage (ST25x04) | 2.5V to 5.5V |
| Packages Available | SO8, PSDIP8 |
The memories carry a built-in 4 bit, unique device identification code (1010).
Up to four 4K devices may be attached to the I2C bus and selected individually.
The 'x' indicates 'C' for Standard version or 'W' for hardware Write Control version.