NM24W04

NM24Wxx 2K/4K/8K/16K-Bit Standard 2-Wire Bus Interface Serial EEPROM with Full Array Write Protect PRELIMINARY March 1999 NM24Wxx 2K/4K/8K/16K-Bit Standard 2-Wire Bus Interface Serial EEPROM with Full Array Write Protect General Description The NM24Wxx devices are 2048/4096/8192/16,384 bits, respectively, of CMOS non-volatile electrically erasable memory. These devices conform to all specifications in the IIC 2-wire protocol and are designed to minimize device pin count, and simplify PC board layout requirements. The entire ememory can be disabled (Write Protected) by connecting the WP pin to VCC. The memory then becomes unalterable unless WP is switched to VSS. This communications protocol uses CLOCK (SCL) and DATA I/O (SDA) lines to synchronously clock data between the master (for example a microprocessor) and the slave EEPROM device(s). The Standard IIC protocol allows for a maximum of 16K of EEPROM memory which is supported by Fairchild's family in 2K, 4K, 8K, and 16K devices, allowing the user to configure the memory as the application requires with any combination of EEPROMs. Fairchild EEPROMs are designed and tested for applications requiring high endurance, high reliability and low power consumption. Features s Hardware Write Protect for entire memory s Low Power CMOS 200µA active current typical 10µA standby current typical 1µA standby typical (L) 0.1µA standby typical (LZ) s IIC Compatible interface — Provides bidirectional data transfer protocol s Sixteen byte p...