Rainbow Electronics MAX66000 - Manual (Page 2)

MAX66000
ISO/IEC 14443 Type B-Compliant
64-Bit UID
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Detailed Description
The MAX66000 combines a 64-bit UID and a
13.56MHz RF interface (ISO/IEC 14443 Type B, Parts
2-4) in a single chip. The UID can be read through the
ISO/IEC 14443-4 block transmission protocol, where
requests and responses are exchanged through I-
blocks once a device is in the ACTIVE state. The read-
er must support a frame size of at least 19 bytes. The
data rate can be as high as 847.5kbps. The MAX66000
supports AFI and CID. ISO 14443 functions not sup-
ported are chaining, frame-waiting time extension, and
power indication. Applications of the MAX66000
include driver identification (fleet application), access
control, and asset tracking.
Overview
Figure 1 shows the relationships between the major
control and memory sections of the MAX66000.
Figure 2 shows the hierarchical structure of the ISO/IEC
14443 Type B-compliant access protocol. The master
must first apply network function commands to put the
MAX66000 into the ACTIVE state to read the UID or
system information. The protocol required for these net-
work function commands is described in the
Network
Function Commands section. Once the MAX66000 is in
the ACTIVE state, the master can use the memory func-
tion commands. Upon completion of such a command,
the MAX66000 returns to the ACTIVE state and the
master can issue another memory function command or
deselect the device, which returns it to the HALT state.
The protocol for these commands is described in the
Memory Commands section. All data is read and writ-
ten least significant bit (LSb) first, starting with the least
significant byte (LSB).
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(T A = -25°C to +50°C.) (Note 1)
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.
Note 2: Measured from the time at which the incident field is present with strength greater than or equal to H
(MIN) to the time at
which the MAX66000’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
RF INTERFACE
Carrier Frequency f C (Note 1) 13.553 13.560 13.567 MHz
At +25°C, MAX66000E 111.0 137.5 Operating Magnetic Field Strength
(Note 1)
H
At +25°C, MAX66000K 123.5 137.5
dBμA/m
Power-Up Time t POR (Note 2) 1.0 ms
RF
FRONT-
END
VOLTAGE
REGULATOR
INTERNALSUPPLY
UID, AFI,
APPLICATION
DATA FIELD
ISO 14443
FRAME
FORMATTING
AND
ERROR
DETECTION
f c
DATA
MODULATION
Figure 1. Block Diagram