ABRIDGED DATA SHEET

MAX66242

DeepCover Secure Authenticator with

ISO 15693, I

2

C, SHA-256, and 4Kb User EEPROM

Features and Benefits

General Description

DeepCover

®

embedded security solutions cloak sensitive

data under multiple layers of advanced physical security

to provide the most secure key storage possible.

The DeepCover Secure Authenticator (MAX66242) is a

transponder IC that combines an ISO/IEC 15693 and ISO

18000-3 Mode 1-compatible RF front-end, an I

2

C front-

end, a FIPS 180-based SHA-256 engine and 4096 bits

of user EEPROM in a single chip. A bidirectional security

model enforces two-way authentication between a host

system and the MAX66242. Each device has its own guar-

anteed unique 64-bit ROM ID that is factory programmed

into the chip. This ROM ID is used as a fundamental input

parameter for cryptographic operations and serves as an

electronic serial number within the application.

In addition to the RF interface, the MAX66242 also has an

I

2

C interface, which can operate as a slave or master port.

When acting as a master, the MAX66242 can gather infor-

mation from a connected sensor or peripheral device and

relay its data via the RF port. When acting as a slave, the

device can serve as an intermediary between a connected

host and an RF reader. The MAX66242 can harvest ener-

gy from an active RF field. The configurable supply output

can deliver up to 5mA given adequate field strength.

●

Complete Counterfeit/Cloning/IP Protection Engine

• SHA-256 Engine Runs a Symmetric Key-Based

Bidirectional Secure Authentication

• Strong Authentication Achieved with a High Bit Count,

User-Programmable Secret, and Input Challenge

• Batteryless RF Communication

• 4096 Bits of User EEPROM with User-Programmable

Memory

• Memory R/W Protection Options Including OTP/

EPROM Emulation Mode

•

Unique Factory-Programmed 64-Bit Identification

Number

• Integrated 32-Byte SRAM Buffer Enables Faster

HF-to-I

2

C Transactions

●

Flexible Connection and Communication Capabilities

Support a Wide Range of Applications

•

Programmable I/O (PIO) Can Be Configured as a

Wake-Up or Monitoring/Control Signal

• HF Standards ISO/IEC 15693 and 18000-3 MODE1

Compatible (13.56 MHz ±7kHz Carrier Frequency)

• I

2

C Interface—Master/Slave Port Eliminates Host

Microcontroller for Sensor-Tag Applications

• Energy Harvesting V

OUT

Pin for Powering External

Components

• Optional 3.3V Supply Voltage Fits Line and

Battery-Powered Applications

• -20°C to +85°C Operating Temperature Range

●

Enables Robust Design

• ±8kV HBM ESD Protection

Applications

●

Access Control

Asset Tracking

Printer Cartridge Configuration and Monitoring

Medical Sensor Authentication and Calibration

System Intellectual Property Protection

Typical Application Circuits

V

OUT

AC1

SCL

SDA

AC2

GND

PIO

V

CC

SCL

µc OR I

2

C

SLAVE

SDA

INT

GND

HARVEST POWERED

MAX66242

Ordering Information

appears at end of data sheet.

DeepCover is a registered trademark of Maxim Integrated

Products, Inc.

Typical Application Circuits

continued at end of data sheet.

219-0038; Rev 1; 9/14

ABRIDGED DATA SHEET

MAX66242

DeepCover Secure Authenticator with ISO 15693,

I

2

C, SHA-256, and 4Kb User EEPROM

Absolute Maximum Ratings

Voltage Range on Any Pin Relative to GND ........-0.5V to +4.0V

Maximum Current Into Any Pin Except AC1 or AC2 ..........20mA

Maximum RMS Current, AC1 to AC2 .................................30mA

Maximum Incident Magnetic Field Strength

(ISO/IEC 7810-compliant antenna) ................... 141.6dBµA/m

Operating Temperature Range ........................... -20°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range ............................ -55°C to +125°C

Lead Temperature (soldering, 10s) ................................. +300°C

Soldering Temperature (reflow) .......................................+260°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these

or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.

Package Thermal Characteristics

(Note 1)

SO

Junction-to-Ambient Thermal Resistance (θ

JA

).........136°C/W

Junction-to-Case Thermal Resistance (θ

JC

) ...............38°C/W

TDFN

Junction-to-Ambient Thermal Resistance (θ

JA

)...........60°C/W

Junction-to-Case Thermal Resistance (θ

JC

) ...............30°C/W

Note 1:

Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer

board. For detailed information on package thermal considerations, refer to

www.maximintegrated.com/thermal-tutorial.

Electrical Characteristics

(T

A

= -20°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

Supply Voltage

Active Supply Current

Standby Supply Current

Power-Up Time

SHA-256 ENGINE

Computation Current

Computation Time

EEPROM

Programming Current

Programming Time for a 32-Bit

Page Block or Protection

Write/Erase Cycling Endurance

Data Retention

PIO PIN

Input Current with Input

Voltage Between 0.1V

CC

and

0.9V

CCMAX

Input Low Voltage

Input High Voltage

Output Low Voltage

RF PORT

Carrier Frequency

Internal Tuning Cap

f

C

TUN

(Note 12)

f = 13.56 MHz (Note 13)

13.553

13.560

27.5

13.567

MHz

pF

I

I_PIO

V

IL_PIO

V

IH_PIO

V

OL_PIO

4mA sink current

-0.3

1.62

0.4

5

0.4

µA

V

I

PROG

t

PROG

N

CY

t

DR

V

CC

= 3.63V (Note 4)

(Note 6)

T

A

= +85°C (Notes 7, 8)

T

A

= +85°C (Notes 9, 10, 11)

100k

10

1.5

10

mA

ms

—

Years

I

CSHA

t

CSHA

V

CC

= 3.63V (Note 4)

(Note 5)

1.5

2

mA

ms

SYMBOL

V

CC

I

CCA

I

CCS

t

POR

(Note 3)

CONDITIONS

MIN

2.97

TYP

3.3

MAX

3.63

110

100

1

UNITS

V

µA

ms

www.maximintegrated.com

Maxim Integrated

│

2

ABRIDGED DATA SHEET

MAX66242

DeepCover Secure Authenticator with ISO 15693,

I

2

C, SHA-256, and 4Kb User EEPROM

Electrical Characteristics (continued)

(T

A

= -20°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

Operating Field

Activation Field Strength

Write/SHA Field Strength

V

OUT

Field Strength

V

OUT

Transition Time

RF Access In Progress Time

10% Carrier Modulation Index

Min MI = (A - B)/(A + B)

10% Carrier Modulation Index

Max MI = (A - B)/(A + B)

100% Carrier Modulation Index

MI = (A - B)/(A + B)

10% Modulation Min Pulse

Width

10% Modulation Max Pulse

Width

10% Modulation Min Low Time

10% Modulation Max Low Time

10% Modulation Min Rise Time

10% Modulation Max Rise Time

100% Modulation Min Pulse

Width

100% Modulation Max Pulse

Width

100% Modulation Min Low

Time

100% Modulation Max Low

Time

100% Modulation Min Rise

Time

100% Modulation Max Rise

Time

RF Timeout

SYMBOL

H

ISO

H

MIN_10

H

MIN_100

H

WR

H

MINOUT

t

VOUT

t

RFAIP

CMI_10

MIN

CMI_10

MAX

CMI_100

t

1 MIN

t

1 MAX

t

2 MIN

t

2 MAX

t

3 MIN

t

3 MAX

t

1 MIN

t

1 MAX

t

2 MIN

t

2 MAX

t

3 MIN

t

3 MAX

t

RF_TIMEOUT

CONDITIONS

(Note 12)

10%–30% modulation index

(Note 13)

100% modulation index

(Note 13)

(Notes 13, 14)

(Note 13)

(Notes 13, 15)

(Notes 16)

(Notes 12, 13, 17)

(Notes 12, 13)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Note 13)

Refer to ISO 15693-2 Section

7.1 (Notes 13, 18)

(Note 13)

0

3.0

45

6.5

9.44

0

2.5

6.5

9.44

7.0

9.44

95

7.0

9.44

MIN

150

100

101.2

113

122

250

1.1

10

30

100

TYP

MAX

5000

UNITS

mA/m

dBµA/m

µs

ms

%

µs

ms

www.maximintegrated.com

Maxim Integrated

│

3

ABRIDGED DATA SHEET

MAX66242

DeepCover Secure Authenticator with ISO 15693,

I

2

C, SHA-256, and 4Kb User EEPROM

Electrical Characteristics (continued)

(T

A

= -20°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

SCL, SDA PINS (Note 21)

Low Level Input Voltage

High Level Input Voltage

Hysteresis of Schmitt Trigger

Inputs

Output Low Voltage

Output Fall Time from

V

IHMIN

to V

ILMAX

with a Bus

Capacitance from 10pF to

400pF

Input Current with Input

Voltage Between 0.1V

CC

and

0.9V

CCMAX

SCL Clock Frequency

Master Mode Frequency

I

2

C Timeout

Hold Time (Repeated) START

Condition.

Low Period of the SCL Clock

High Period of the SCL Clock

Setup Time for a Repeated

START Condition

Data Hold Time

Data Setup Time

Setup Time for STOP Condition

Bus Free Time Between a

STOP and START Condition

Capacitive Load for Each Bus

Line

V

IL

V

IH

V

HYS

V

OL

(Note 13)

4mA sink current

-0.3

0.8 x

V

CC

0.3

0.10 x

V

CC

150

0.10 x

V

CC

V

CC

+

0.3

V

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

t

OF

(Note 13)

ns

I

f

SCL

f

MSTR

t

I2C_TIMEOUT

t

HD:STA

t

LOW

t

HIGH

t

SU:STA

t

HD:DAT

t

SU:DAT

t

SU:STO

t

BUF

C

B

(Note 20)

(Notes 13, 21)

f

C

= 13.56MHz

(Note 21)

-10

+10

400

53

µA

kHz

ms

µs

25

0.6

1.3

0.6

50

(Notes 13, 22, 23)

(Notes 24)

100

0.6

1.3

(Notes 12, 13)

0.9

µs

ns

µs

400

pF

www.maximintegrated.com

Maxim Integrated

│

4

ABRIDGED DATA SHEET

MAX66242

DeepCover Secure Authenticator with ISO 15693,

I

2

C, SHA-256, and 4Kb User EEPROM

Typical Operating Characteristics

1.8V MODE V

OUT

vs. LOAD CURRENT

1.800

1.700

1.600

V

OUT

(V)

1.500

1.400

1.300

1.200

1.100

toc01

5A/m

1A/m

2A/m

3A/m

0

1000

2000

I

LOAD

(μA)

3000

4000

5000

6000

3.500

3.300

3.100

V

OUT

(V)

2.900

2.700

2.500

2.300

2.100

3.3V MODE V

OUT

vs. LOAD CURRENT

toc02

1A/m

3A/m

5A/m

2A/m

0

1000

2000

I

LOAD

(μA)

3000

4000

5000

www.maximintegrated.com

Maxim Integrated

│

6

参数名称	属性值
产品种类 Product Category	Maxim
制造商 Manufacturer	Maxim(美信半导体)

	MAX66242ETB-	MAX66242ESA-A-	MAX66242ESA-	MAX66242ETB-T	MAX66242ESA-A+T
描述	Maxim 4kbit SHA-256 Secure EEPROM, I2C IF	Maxim DeepCover Secure Authenticator with ISO 15693, I2C, SHA-256, and 4Kb User EEPROM	Maxim 4kbit SHA-256 Secure EEPROM, I2C IF	Maxim 4kbit SHA-256 Secure EEPROM I2C, IF Tu0026R	Maxim DeepCover Secure Authenticator with ISO 15693, I2C, SHA-256, and 4Kb User EEPROM
产品种类 Product Category	Maxim	Maxim	Maxim	Maxim	Maxim
制造商 Manufacturer	Maxim(美信半导体)	Maxim(美信半导体)	Maxim(美信半导体)	Maxim(美信半导体)	Maxim(美信半导体)

MAX66242ETB-

MAX66242ETB-在线购买

MAX66242ETB-概述

MAX66242ETB-规格参数

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