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.
Feature
- Pre-programmed globally unique, 48-bit node address
- Compatible with EUI-48™ and EUI-64™
- 10MHz Maximum clock frequency
- Low-power CMOS technology
- Write page mode
- Sequential read
- Self-timed erase and write cycles 5ms maximum
- Block write protection - Protect none, 1/4, 1/2 or all of array
- Built-in write protection
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
- High reliability
- Endurance - 1000000 erase/write cycles
- Data retention - >200 years
- ESD protection - 4000V
