Rainbow Electronics MAX66120 - Manual

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 user-
readable 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 indi-
vidual memory page. The MAX66120 supports all ISO
15693-defined data rates, modulation indices, subcarri-
er 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.
Applications
Driver Identification (Fleet Application)
Access Control
Asset Tracking
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 EPROM-
Emulation 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
MAX66120
ISO 15693-Compliant 1Kb Memory Fob
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
IC LOAD
SWITCHED
LOAD
MAGNETIC
COUPLING
ANTENNA RX_IN
TX_OUT
TRANSMITTER
13.56MHz READER
MAX66120
Typical Operating Circuit
19-5623; Rev 0; 11/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMP RANGE PIN-PACKAGE
MAX66120K-000AA+ -25°C to +50°C Key Fob
Key Fob Mechanical Drawing appears at end of data sheet.
EVALUATION KIT
AVAILABLE