Rainbow-electronics MAX66120 Manual de usuario descargar pdf

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

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

1 2 3 4 5 6 ... 23 24

MAX66120 1

Indice de contenidos

Pagina 1 - MAX66120

General DescriptionThe MAX66120 combines 1024 bits of user EEPROM, a64-bit unique identifier (UID), and a 13.56MHz ISO15693 RF interface in a plastic

Pagina 2

MAX66120ISO 15693-Compliant 1Kb Memory Fob10 ______________________________________________________________________________________Figure 13. Uplink C

Pagina 3

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 11ISO 15693 Slave Sta

Pagina 4

MAX66120ISO 15693-Compliant 1Kb Memory Fob12 ______________________________________________________________________________________selected state and

Pagina 5

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 13Request FlagsThe co

Pagina 6

MAX66120ISO 15693-Compliant 1Kb Memory Fob14 ______________________________________________________________________________________REQUEST FLAGS COMM

Pagina 7

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 15Stay QuietThe Stay

Pagina 8

REQUEST FLAGS COMMAND UID(1 Byte) 2Bh (8 Bytes) REQUEST FLAGS COMMAND UID BLOCK NUMBER NEW BLOCK DATA (1 Byte) 21h (8 Bytes) (1 Byte) (8 B

Pagina 9

MAX66120Lock BlockThe Lock Block command permanently locks (write pro-tects) the selected block and reports the success of theoperation in the respons

Pagina 10

18 ______________________________________________________________________________________MAX66120ISO 15693-Compliant 1Kb Memory FobREQUEST FLAGS COMM

Pagina 11

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 19Write AFIThe Write

Pagina 12

MAX66120ISO 15693-Compliant 1Kb Memory Fob2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RA

Pagina 13

MAX66120ISO 15693-Compliant 1Kb Memory Fob20 ______________________________________________________________________________________Figure 17. CRC-16-C

Pagina 14

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 21Command-Specific IS

Pagina 15

MAX66120ISO 15693-Compliant 1Kb Memory Fob22 ______________________________________________________________________________________ISO 15693 Communica

Pagina 16

MAX66120ISO 15693-Compliant 1Kb Memory Fob______________________________________________________________________________________ 23ISO 15693 Communica

Pagina 17

MAX66120ISO 15693-Compliant 1Kb Memory FobMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxi

Pagina 18

MAX66120ISO 15693-Compliant 1Kb Memory Fob_______________________________________________________________________________________ 3RFFRONT-ENDVOLTAGER

Pagina 19

MAX66120ISO 15693-Compliant 1Kb Memory Fob4 _______________________________________________________________________________________DATA BYTE NUMBER (

Pagina 20

MAX66120ISO 15693-Compliant 1Kb Memory Fob_______________________________________________________________________________________ 5AFFECTED MEMORY ARE

Pagina 21

MAX66120ISO 15693-Compliant 1Kb Memory Fob6 _______________________________________________________________________________________ISO 15693 Communica

Pagina 22

MAX66120ISO 15693-Compliant 1Kb Memory Fob_______________________________________________________________________________________ 7The path from maste

Pagina 23

MAX66120ISO 15693-Compliant 1Kb Memory Fob8 _______________________________________________________________________________________Figure 9. Downlink

Pagina 24

MAX66120ISO 15693-Compliant 1Kb Memory Fob_______________________________________________________________________________________ 9Figure 10. Downlink

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Rainbow-electronics MAX66120 Manual de usuario

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