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General Description

The NM24C16U/17U devices are 16K (16,384) bit serial interface CMOS EEPROMs (Electrically Erasable Programmable ReadOnly Memory). These devices fully conform to the Standard I2C? 2-wire protocol which uses Clock (SCL) and Data I/O (SDA) pins to synchronously clock data between the master (for example a microprocessor) and the slave (the EEPROM device). In addition, the serial interface allows a minimal pin count packaging designed to simplify PC board layout requirements and offers the designer a variety of low voltage and low power options.

Features

¡ö The I2C? interface allows the smallest I/O pincount of any EEPROM interface

¡ö 16 byte page write mode to minimize total write time per byte

¡ö Typical 200?A active current (ICCA)

¡ö Typical 1?A standby current (ISB) for L devices and 0.1?A standby current for LZ devices

¡ö Endurance: Up to 1,000,000 data changes

¡ö Data retention greater than 40 years

Functions

¡ö I2C? compatible interface

¡ö 4,096 bits organized as 512 x 8

¡ö Extended 2.7V ¨C 5.5V operating voltage

¡ö 100 KHz or 400 KHz operation

¡ö Self timed programming cycle (6ms typical)

¡ö Programming complete indicated by ACK polling

¡ö NM24C17U: Memory Upper Block Write Protect pin