SLE 55R04 C Infineon Technologies, SLE 55R04 C Datasheet - Page 6

• Manufacturer Part Number: SLE 55R04 C
• Manufacturer: Infineon Technologies

Specifications of SLE 55R04 C

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

1.1
SLE 55R04 consists of a EEPROM memory unit, an analog interface for contactless energy and
data transmission, a control and a crypto unit.
Figure 4 Block diagram of SLE 55R04
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Short Product Information
Analog Contactless Interface consists of:
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Operational mode
The access to the memory depends on the actual mode of SLE 55R04; the memory is
accessed according to plain or protected mode when the PICC is selected.
Crypto Unit
Generates random numbers, checks and calculates message authentication code (MAC).
Memory Unit
770 bytes organised in 77 pages with 8 + 2 bytes each.
Control Unit
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Rectifier
Voltage Regulator
Power on Reset
Modulator / Demodulator
Clock Extractor
Decoding and execution of the commands
Bit oriented anticollision method with 4 or 7 byte long serial numbers (complying to
ISO/IEC 14443-3 − cascade level 1 and 2 are supported). It allows the recognition of
several cards in the field which may be selected and operated in sequence.
Access to key-protected sectors is only permitted after authentication with an appropriate
key. Only one sector is opened within a session. One sector is optionally configurable
without key protection and authentication.
Memory access to the pages according to the individual access conditions programmed
for every page and every key
LA
LB
Circuit Description
Power Circuit
Rectifier
Clock Extractor
Power on Reset
Voltage Regulator
Contactless
Interface
Analog
Data
Power
Clock
6 / 8
IO
Operational
Mode
Command
Anticollision
Control Unit
Crypto Unit
Authentication
Memory Unit
SLE 55R04
Memory
Access
2001-01-31