CAT24C21 Datasheet - Catalyst Semiconductor

CAT24C21 1-kb Dual Mode Serial EEPROM

The CAT24C21 is a 1-kb Serial CMOS EEPROM internally organized as 128 words of 8 bits each. The device complies with the Video Electronics Standard Association's (VESA™), Display Data Channel (DDC™) standards for "Plug-and-Play" monitors. The "transmitonly" mode (DDC1™) is controlled by the VCLK clo.

CAT24C21 Features

* s DDC1TM/DDC2TM interface compliant for s Low power CMOS technology s 1,000,000 program/erase cycles s 100 year data retention H GEN FR ALO EE LE A D F R E ETM monitor identification s 400 kHz I2C bus compatible

* s 2.5 to 5.5 volt operation s 16-byte page write buffer s Hardware write prot

CAT24C21_CatalystSemiconductor.pdf