Microchip AT88WJ007-MVA1

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Overview

Microchip CryptoRF integrates a 13.56MHz RF interface into Microchip CryptoMemory to create a contactless secure RFID solution with advanced security and cryptographic features. The device is optimized as contactless secure memory for RF tags and secure data storage without requiring an internal microprocessor. This device contains 8Kb of user memory and 2Kb of configuration memory containing: eight sets of read/write passwords, four crypto key sets, security access registers for each user zone, and password/key registers for each zone. The maximum communication range between the reader antenna and contactless card is approximately 10cm when used with an RFID reader that transmits the maximum ISO/IEC 14443-2 RF power level. The RF interface powers the other circuits.

• One of a Family of Devices with User Memory of 1 Kbit to 64 Kbits• Contactless 13.56 MHz RF Communications Interface – ISO/IEC 14443-2:2001 Type B Compliant – ISO/IEC 14443-3:2001 Type B Compliant Anticollision Protocol – Command Set Optimized for Multicard RF Communications – Tolerant of Type A Signaling for Multiprotocol Applications – Operating Distance Up to 10 cm• Integrated 82 pF Tuning Capacitor• User EEPROM Memory – 8 Kbits Configured as Eight 128-byte (1-Kbit) User Zones – Byte, Page, and Partial Page Write Modes – Self-timed Write Cycle• 256-byte (2-Kbit) Configuration Zone – User-programmable Application Family Identifier (AFI) – User-defined Anticollision Polling Response – User-defined Keys and Passwords• High-Security – 64-bit Mutual Authentication Protocol (under exclusive patent license from ELVA) – Encrypted Checksum – Stream Encryption – Four Key Sets for Authentication and Encryption – Eight Sets of Two 24-bit Passwords – Password and Authentication Attempts Counters – Selectable Access Rights by Zone – Write Lock Mode – Antitearing Function – Tamper Sensors• High Reliability – Endurance: 100,000 Write Cycles – Data Retention: 10 Years – Operating Temperature: −40°C to +85°C

Features