The BU9877FV is a 2-k bit EEPROM with a write protect function, developed for DIMMs (Dual In-line Memory Modules) containing a synchronous DRAM. This IC stores IDs in memory in order to enable Plug & Play functions.

Features

1) 2-k bit EEPROM with configuration of 256 words × 8 bits.

2) Compliance with SPD data format.

3) Dual-line serial (I2C bus) interface.

4) Protective functions enabled by a one-time ROM and write protect pin.

Soft ware protection. as a one-time ROM: 00 to 7Fh.

Hard ware protection (WP pin): 80 to FFh.

5) Compact SSOP-B 8-pin package.

Applications

168-pin and 144-pin DRAM modules containing synchronous DRAM