S524C20D20

S524C20D10/20D20/80D40/80D80 1K/2K/4K/8K-bit Serial EEPROM with software write protect Data Sheet OVERVIEW The S524C20D10/20D20/80D40/80D80 serial EEPROM has a 1,024/2,048/4,096/8,192-bit (128/256/512/1,024byte) capacity, supporting the standard I2C™-bus serial interface. It is fabricated using Samsung’ s most advanced CMOS technology. Important features are a hardware-based write protection circuit for the entire memory area and software-based write protection logic for the lower 128 bytes. Hardware-based write protection is controlled by the state of the write-protect (WP) pin. The software-based method is one-time programmable and permanent. Using one-page write mode, you can load up to 16 bytes of data into the EEPROM in a single write operation. Another significant feature of the S524C20D10/20D20/80D40/80D80 is its support for fast mode and standard mode. FEATURES I2C-Bus Interface Two-wire serial interface Automatic word address increment Operating Characteristics Operating voltage — 2.5 V to 5.5 V (write) — 2.2 V to 5.5 V (read) EEPROM 1K/2K/4K/8K-bit (128/256/512/1,024-byte) storage area 16-byte page buffer Typical 3.5 ms write cycle time with auto-erase function Hardware-based write protection for the entire EEPROM (using the WP pin) Software-based write protection for the lower 128-byte EEPROM EEPROM programming voltage generated on chip 1,000,000 erase/write cycles 100 years data retention Operating current — Maximum write current: <...