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EM4056 Datasheet(PDF) 2 Page - EM Microelectronic - MARIN SA

Part # EM4056
Description  2KBIT Read/Write with ANTICOLLISION Contactless Identification Device
PDF  14 Pages
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Manufacturer  EMMICRO [EM Microelectronic - MARIN SA]
Direct Link  http://www.emmicroelectronic.com
Logo EMMICRO - EM Microelectronic - MARIN SA

EM4056 Datasheet(HTML) 2 Page - EM Microelectronic - MARIN SA

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EM4056
Copyright
© 2005, EM Microelectronic-Marin SA
2
www.emmicroelectronic.com
Block Diagram
Analog
Circuit
Safety
(incl. PIN Code)
Adder
Anticollision
Logic Circuit
Modulator
Demodulator
Serial Input
Serial Output
CLK
Antenna
(Coil)
EEPROM
Power Supply
Addressing
Laser ROM
3x16 bit
Memory
Write/Read
Protection (OTP)
125 x 16 bit
EEPROM
Fig. 2
System Principle
Reader
125kHz EM coupling
Demodulator
Oscillator
Decoder
Command Mode
Reader Coil
Transponder Coil
Answer Mode
Transponder Coil
Reader Coil
Reader
Coil
Reader
Modulator
Serial
Interface
RS232
EM4056
Fig. 3



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