MAX66020K-000AA+【PDF 1/25 页】IC RFID UID 1KB TYPEB MEM KEYFOB

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Sheet目录474

[1页]2页 3页 4页 5页

19-5540; Rev 0; 12/10

ATION

EVALU

AVAILA

KIT

BLE

ISO/IEC 14443 Type B-Compliant

1Kb Memory Fob

General Description

The MAX66020 combines 1024 bits of user EEPROM, a

64-bit unique identifier (UID), and a 13.56MHz RF inter-

face (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. Memory

access is accomplished through the block transmission

protocol (ISO/IEC 14443-4), where requests and

responses are exchanged through I-blocks once a

device is in the ACTIVE state. The data rate can be as

high as 847.5kbps. The reader must support a frame

size of 19 bytes. The device supports an application

family identifier (AFI) and a card identifier (CID).

ISO/IEC 14443 functions not supported are chaining,

frame-waiting time extension, and power indication.

Applications

Driver Identification (Fleet Application)

Access Control

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 EPROM-

Emulation 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

Asset Tracking

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

Key Fob Mechanical Drawing appears at end of data sheet.

MAX66020K-000AA+

-25°C to +50°C

Key Fob

+Denotes a lead(Pb)-free/RoHS-compliant package.

Typical Operating Circuit

13.56MHz READER

TRANSMITTER

TX_OUT

MAGNETIC

COUPLING

IC LOAD

SWITCHED

MAX66020

RX_IN

ANTENNA

LOAD

________________________________________________________________ Maxim Integrated Products

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.

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