PCA24S08

PCA24S08 1024 × 8-bit CMOS EEPROM with access protection Rev. 02 — 11 May 2010 Product data sheet 1. General description The PCA24S08 provides 8192 bits of serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 1024 words of 8 bits each. Data bytes are received and transmitted via the serial I2C-bus. Access permissions limiting reads or writes are set via the I2C-bus to isolate blocks of memory from improper access. The PCA24S08 is intended to be pin compatible with standard 24C08 serial EEPROM devices except for pins 1, 2, and 3, which are address pins in the standard part. Other exceptions to the PCA24S08 serial EEPROM data sheet are noted in Section 6.6. All bits are sent to or read from the device, most significant bit first, in a manner consistent with the 24C08 serial EEPROM. The bit fields in this document are correspondingly listed with the MSB on the left and the LSB on the right. The EEPROM memory is broken up into 8 blocks of 1 kbit (128 ...