EEPROM Memory IC 2Kb (256 x 8) I²C 1MHz 400ns SOT-23-6
The 25AA02E48T-I/OT is a 2kB serial Electrically Erasable Programmable Read-Only Memory (EEPROM) with EUI-48™ Node identity. The memory is accessed via a simple serial peripheral interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored with the exception of chip select, allowing the host to service higher priority interrupts.
Description The Microchip Technology Inc. 93XX56A/B/C devices are 2K bit low voltage serial Electrically Erasable PROMs (EEPROM). Word-selectable devices such as the 93AA56C, 93LC56C or 93C56C are dependent upon external logic levels driving the ORG pin to set word size. For dedicated 8-bit communication, the 93AA56A, 93LC56A or 93C56A devices are available, while the 93AA56B, 93LC56B and 93C56B devices provide dedicated 16-bit communication. Advanced CMOS technology makes these devices ideal for low power, nonvolatile memory applications. Features • Low-power CMOS technology • ORG pin to select word size for ‘56C version • 256 x 8-bit organization ‘A’ ver. devices (no ORG) • 128 x 16-bit organization ‘B’ ver. devices (no ORG) • Self-timed ERASE/WRITE cycles (including auto-erase) • Automatic ERAL before WRAL • Power on/off data protection circuitry • Industry standard 3-wire serial I/O • Device Status signal (READY/BUSY) • Sequential READ function • 1,000,000 E/W cycles • Data retention > 200 years • Temperature ranges supported: - Industrial (I) -40°C to +85°C - Automotive (E) -40°C to +125°C