Description

The AT24RF08C functions as a dual access EEPROM, with both a wired serial port and a wireless RFID port used to access the memory. Access permissions are set from the serial interface side to isolate blocks of memory from improper access. The RFID interface can be powered solely from the attached coil permitting remote reads

and writes of the device when VCC is not applied.

Features

• Dual-port Nonvolatile Memory - RFID and Serial Interfaces

• Two-wire Serial Interface:

– Compatible with a Standard AT24C08 Serial EEPROM

– Programmable Access Protection to Limit Reads or Writes from Either Port

– Lock/Unlock Function, Coil Connection Detection

• RFID Interface:

–125 kHz Carrier Frequency for Long Range Access

–2-Wire Connection to External Coil Antenna and Tuning Capacitor

–Multi-tag Management to Handle Several Tags in the Field at Once

–12 RFID Commands for Tag Control and Memory Read/Write

–ID Write and Lock from RFID Port

–Ultra Low Power Single Bit Write - 25 µA

• Highly-reliable EEPROM Memory

–8K bits (1K bytes), Organized as 8 Blocks of 128 Bytes Each

–16-byte Page Write, 10 ms Write Time

–10 Years Retention, 100K Write Cycle Endurance

• -40°C to +85°C Operation, 2.4V to 5.5V Supply, 8-Lead JEDEC SOIC Package