General Description
   The MAX66020 combines 1024 bits of user EEPROM, a 64-bit unique identifier (UID), and a 13.56MHz RF interface (ISO/IEC 14443 Type B, Parts 2-4) in a plastic key fob. The memory is organized as 16 blocks of 8 bytes plus two more blocks for data and control registers. Four adjacent user EEPROM blocks form a memory page (pages 0 to 3). Memory protection features are write protection and EPROM emulation, which the user can set for each individual memory page. 

FEATUREs
✦ Fully Compliant ISO/IEC 14443 (Parts 2-4) Type B
   Interface
✦ 13.56MHz ±7kHz Carrier Frequency
✦ 1024-Bit User EEPROM with Block Lock Feature,
   Write-Cycle Counter, and Optional EPROMEmulation Mode
✦ 64-Bit UID
✦ Read and Write (64-Bit Block)
✦ Supports AFI and CID Function
✦ 10ms Maximum Programming Time
✦ To Fob: 10% ASK Modulation at 105.9kbps,
   211.9kbps, 423.75kbps, or 847.5kbps
✦ From Fob: Load Modulation Using BPSK
   Modulated Subcarrier at 105.9kbps, 211.9kbps,
   423.75kbps, or 847.5kbps
✦ 200,000 Write/Erase Cycles (Minimum)
✦ 40-Year Data Retention (Minimum)
✦ Powered Entirely Through the RF Field
✦ Operating Temperature: -25°C to +50°C

APPLICATIONs
   Driver Identification (Fleet Application)
   Access Control
   Asset Tracking