MAX66120 MAXIM [Maxim Integrated Products], MAX66120 Datasheet - Page 3

• Manufacturer Part Number: MAX66120
• Description: ISO 15693-Compliant 1Kb Memory Fob Powered Entirely Through the RF Field
• Manufacturer: MAXIM [Maxim Integrated Products]

Figure 1. Block Diagram
Figure 2. ISO 15693 Commands Overview
Figure 3. 64-Bit UID
As a wireless device, the MAX66120 is not connected
to any power source. It gets the energy for operation
from the surrounding RF field, which must have a mini-
mum strength as specified in the Electrical
Characteristics table.
MSb
64
MEMORY AND CONTROL
FUNCTION COMMANDS
FUNCTION COMMANDS
COMMAND TYPE:
E0h
NETWORK
57 56
_______________________________________________________________________________________
ISO 15693-Compliant 1Kb Memory Fob
2Bh
AVAILABLE COMMANDS:
INVENTORY
STAY QUIET
SELECT
RESET TO READY
GET SYSTEM INFORMATION
WRITE SINGLE BLOCK
LOCK BLOCK
READ SINGLE BLOCK
READ MULTIPLE BLOCKS
CUSTOM READ BLOCK
WRITE AFI
LOCK AFI
WRITE DSFID
LOCK DSFID
FRONT-
END
RF
MODULATION
49 48
Parasite Power
DATA
f
c
REGULATOR
VOLTAGE
FORMATTING
MAX66120
DETECTION
0h
ISO 15693
FRAME
ERROR
INTERNAL SUPPLY
AND
45 44
DATA FIELD AFFECTED:
UID, AFI, DSFID, ADMINISTRATIVE DATA
UID
UID
UID
UID, AFI, DSFID, CONSTANTS
UID, DATA OF SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER
UID, APPLICABLE PROTECTION CONTROL REGISTER
UID, SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER
UID, SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER
MFGCODE, UID, SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER,
UID, AFI BYTE
UID, AFI LOCK BYTE
UID, DSFID BYTE
UID, DSFID LOCK BYTE
INTEGRITY BYTES
FEATURE CODE (02h)
Each MAX66120 contains a factory-programmed and
locked identification number that is 64 bits long
(Figure 3). The lower 36 bits are the serial number of
the chip. The next 8 bits store the device feature
code, which is 02h. Bits 45 to 48 are 0h. The code in
MEMORY AND
FUNCTION
CONTROL
REGISTER
BLOCK
Unique Identification Number (UID)
UID
37 36
EEPROM
USER
36-BIT IC SERIAL NUMBER
LSb
1
3