參數(shù)資料
型號: EM4469V0WW7
廠商: Electronic Theatre Controls, Inc.
英文描述: 512 bit Read/Write Contactless Identification Device
中文描述: 512位讀/寫非接觸式識別裝置
文件頁數(shù): 1/11頁
文件大?。?/td> 305K
代理商: EM4469V0WW7
EM4469
Copyright
2003, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
512 bit Read/Write Contactless Identification Device
Description
EM4469 is a CMOS integrated circuit intended for use in
electronic Read/Write RF transponders.
The IC is powered by picking the energy from a
continuous 125 kHz magnetic field via an external coil,
which together with the integrated capacitor form a
resonant circuit. The IC read out data from its internal
EEPROM and sends it out by switching on and off a
resistive load in parallel to the coil. Commands and
EEPROM data updates can be executed by 100% AM
modulation of the 125 kHz magnetic field.
There are several data rate and data encoding options
available. Options are stored in EEPROM Configuration
word. Read and write access to EEPROM can be
protected by 32 bit password. All EEPROM words can be
write protected by setting lock bits which transform them
in read-only.
It contains factory programmed and locked 32 bit UID
number, chip type and customer code.
Features
§
512 bit EEPROM organised in 16 words of 32 bits
§
32 bit Password read and write protection
§
32 bit unique identification number (UID)
§
10 bit Customer code
§
Lock feature convert EEPROM words in read only
§
Multi-purpose encoding (Manchester, Biphase, Miller,
PSK, FSK)
§
Multi-purpose data rate from 1 up to 32 Kbaud
§
Power-check for EEPROM write operation
§
100 to 150 kHz frequency range
§
On-chip rectifier and voltage limiter
§
No external supply buffer capacitor needed
§
-40 to +85
°
C temperature range
§
Very low Power consumption
§
EM4469: trimmed resonant capacitor integrated on
chip (330pF, 250pF or 75pF mask option)
Applications
§
Access Control
§
Animal Identification
§
Material Logistics
Typical Operating Configuration
Fig. 1
EM MICROELECTRONIC
- MARIN SA
C1
EM4469
L
C2
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