General Description
The MAX66120 combines 1024 bits of user EEPROM, a 64-bit unique identifier (UID), and a 13.56MHz ISO 15693 RF interface in a plastic key fob. The memory is organized as 16 blocks of 8 bytes plus two more blocks for data and control registers. Each block has a userreadable write-cycle counter. 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. The MAX66120 supports all ISO 15693-defined data rates, modulation indices, subcarrier modes, the selected state, application family identifier (AFI), data storage format identifier (DSFID), and the Option_flag bit for read operations. Memory write access is accomplished through standard ISO 15693 memory and control function commands.

FEATUREs
♦ Fully Compliant with ISO 15693 and ISO 18000-3
   Mode 1 Standard
♦ 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 DSFID Function
♦ 10ms Programming Time
♦ To Fob: 10% or 100% ASK Modulation Using 1/4
   (26kbps) or 1/256 (1.6kbps) Pulse-Position Coding
♦ From Fob: Load Modulation Using Manchester
   Coding with 423kHz and 484kHz Subcarrier in Low
   (6.6kbps) or High (26kbps) Data-Rate Mode
♦ 200,000 Write/Erase Cycles (Minimum)
♦ 40-Year Data Retention (Minimum)
♦ Compatible with Existing 1Kb ISO 15693 Products
   on the Market
♦ Supports the Option_Flag for Read Operations
♦ Powered Entirely Through the RF Field
♦ Operating Temperature: -25°C to +50°C

APPLICATIONs
   Driver Identification (Fleet Application)
   Access Control
   Asset Tracking