AT88RF256-12

Features:

• 125 kHz RFID Chip for Cards and Tags
• 256 Read/Write EEPROM Bits, Divided into Eight Pages of 32 Bits
• Password and Write Lock Protection
• Programmable Send and Receive Protocols
• Support for Multiple Tags (Anti-collision)
• Integrated 150 pF Tuning Capacitor
• ID Length Programmable from 4 - 19 Bytes
• Optional Start and Stop Bits
• Bit Reception Rate of 32 to 4096 Clocks/Bit
• Bit Transmission Rate of 16 to 1024 Clocks/Bit
• Unique Serial Number
• -40° to +85°C Temperature Range



Pinout




Specifications

Operating Temperature...........................-40°C to +85°C Storage Temperature (without Bias)......-40°C to + 85°C Maximum Power from RF Field...............................100 mW Maximum Coil Input Voltage....................................24VP-P Maximum ESD Voltage (pins L1 and L2)....................2000V

Description

The AT88RF256 is an RFID (radio frequency identification) chip designed to work on the industry-standard carrier frequency of 125 kHz. Applications include access control, asset identification, industrial tagging, animal identifi-cation and other applications where modest security capabilities are necessary. Security features include locking of sensitive information to prevent tampering, optional passwords to prevent unauthorized access and unique serial numbers locked into the chip by Atmel.

Since the chip AT88RF256 includes an internal tuning capacitor, only the addition of an external coil antenna is required to form the complete tag or card. The chip includes an array of read/write EEPROM, of which 224 bits are available for user defined purposes. All necessary power generation, regulation and data modulation/demodulation circuitry is on the chip. The communication details are programmable.