ISO/IEC 14443 Type B-Compliant

Secure Memory

2

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ABRIDGED DATA SHEET

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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.

Note 1: System requirement.

which the MAX66040’s internal power-on reset signal is deasserted and the device is ready to receive a command frame.

Not characterized or production tested; guaranteed by simulation only.

Maximum Incident Magnetic Field Strength ..........141.5dBµA/m

Operating Temperature Range ...........................-25°C to +50°C

Relative Humidity ..............................................(Water Resistant)

Storage Temperature Range ...............................-25°C to +50°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SHA-1 ENGINE

SHA-1 Computation Time

Refer to the full data sheet.

ms

EEPROM

Programming Time

9

10

ms

Endurance

At +25°C

200,000

cycles

Data Retention

40

years

RF INTERFACE

Carrier Frequency

(Note 1)

13.553

13.560

13.567

MHz

At +25°C, MAX66040E

110.0

137.5

Operating Magnetic Field Strength

(Note 1)

H

At +25°C, MAX66040K

123.5

137.5

dBμA/m

Power-Up Time

(Note 2)

1.0

ms