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LRI2K Datasheet(PDF) 10 Page - STMicroelectronics

No. de pieza LRI2K
Descripción Electrónicos  13.56 MHz, 2048-bit EEPROM tag IC with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant
PDF  89 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRI2K Datasheet(HTML) 10 Page - STMicroelectronics

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Description
LRI2K
10/89
1
Description
The LRI2K is a contactless memory powered by the received carrier electromagnetic wave.
It is a 2048-bit electrically erasable programmable memory (EEPROM). The memory is
organized as 64 blocks of 32 bits. The LRI2K is accessed via the 13.56 MHz carrier
electromagnetic wave on which incoming data are demodulated from the received signal
amplitude modulation (ASK: amplitude shift keying). The received ASK wave is 10% or
100% modulated with a data rate of 1.6 Kbit/s using the 1/256 pulse coding mode or a data
rate of 26 Kbit/s using the 1/4 pulse coding mode.
Outgoing data are generated by the LRI2K load variation using Manchester coding with one
or two subcarrier frequencies at 423 kHz and 484 kHz. Data are transferred from the LRI2K
at 6.6 Kbit/s in low data rate mode and 26 Kbit/s fast data rate mode. The LRI2K supports
53 Kbit/s in high data rate mode with one subcarrier frequency at 423 kHz.
The LRI2K follows the ISO 15693 recommendation for radio-frequency power and signal
interface.
Figure 1.
Pad connections
Figure 2.
MLP connections
1.
n/c means not connected internally.
Table 1.
Signal names
Signal name
Function
AC1
Antenna coil
AC0
Antenna coil
AI12065
AC1
LRI2K
AC0
Power
Supply
Regulator
Manchester
Load
Modulator
ASK
Demodulator
2048 bit
EEPROM
memory
1
AI11612
2
3
4
8
7
6
5
AC0
AC1
n/c
n/c
n/c
n/c
n/c
n/c



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