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IZ2822 데이터시트 PDF




Integral에서 제조한 전자 부품 IZ2822은 전자 산업 및 응용 분야에서
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부품번호 IZ2822 기능
기능 RFID circuit with read/write functions
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IZ2822 데이터시트, 핀배열, 회로
IZ2822
RFID circuit with read/write functions
(Functionally compatible to MF0 IC U1X.Philips)
General description
The IZ2822 RFID circuit with read/write functions is purposed for usage in contactless
plastic cards.
Application areas: transference supervisory control system, antitheft systems, access control sys-
tems in buildings, restricted areas, burglar alarm, registration & identification systems in transporta-
tion & technological processes.
External coil is connected to create contactless identifier mark. Build-in radio channel receive sig-
nal induced in antenna. This signal is used by power supply unit to generate supply voltage & by
control unit to separate clocking signal.
Main features
512 bit (16 pages x 4 bytes) EEPROM ;
100,000 memory program/erase cycles;
Temperature range from minus 40 to plus 85 °С;
ESD protection up to 2000 V;
Latch current not less than 100 mA for 25 °С temperature;
Contactless data & power supply transfer;
Operating field frequency 13,56 MHz;
Data transfer rate – 106 kbit/s;
Build-in resonance capacitry 42,5 pF СR 57,5 pF;
Anticollision function support, permit to process few identifier marks in receiving zone at
the same time;
Data exchange meet international standards ISO 14443-2, ISO 14443-3, type A;
Internal DC voltage limitation to prevent identifier mark fail in power electromagnetic
field.;
Internal circuit clocking by means of separation of clock pulses from external electro-
magnetic field;
data storage without power supply (non-volantive memory);
sector organization of memory with possibility of writing protection of each sector
Tab.1 Contact pad description
Contact pad
number
Symbol
01 COIL1
Function
Coil connetion I/O
02
COIL2
Coil connetion I/O
03 UCC Power supply
04
DATA
Data output (testing)
05
GND
Common
Note – Contact pads UCC, GND, DATA are purposed only fo testing during IC
manufacturing and are not used by customer
1 Ver.00/11.07.2008
IZ2822-TSe.doc




IZ2822 pdf, 반도체, 판매, 대치품
IZ2822
Instruction set
State diagram
POR
Typical transmission time
IDLE
HALT
REQA,
WUPA
READY 1
WUPA
Anticollision
SELECT
of Cascade level 1
READ
from address 0
READY 2
READ
from address 0 SELECT
of Cascade level 2
HALT
Anticollision
5 ms, without collision
+ 1 ms on each collision
ACTIVE
READ (16 bytes) - 2 ms
WRITE (4 bytes) - 4,6 ms
СOMPATIBILITY WRITE (4 bytes) - 6,2 ms
WRITE
(4 bytes)
READ
(16 bytes)
Fig. 3– Chip instruction set
Idle state
After Power On Reset (POR) the card (chip) jumps into the Idle state. With a card request
(REQA) or a all card requst (WUPA) commands sent from the reader card (chip) it leaves
this state. Any other data or commands received in this state is interpreted as an error and
the card continues waiting in the Idle state.
After a correctly executed HALT command, card jumps into the Halt state, which can be left
via a WUPA command.
Ready state 1 (READY1)
4 Ver.00/11.07.2008
IZ2822-TSe.doc

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IZ2822 전자부품, 판매, 대치품
IZ2822
b) If the first bit after start of the data frame is "0" sequence Z should be used for
representation of it a bit;
- Start of transfer - sequence Z;
- The end of transfer - logic "0" follows with sequence Y;
- There is no information - at least, two sequences Y.
Start
End of
bit 0 1 1 0 0 1 0 0 transmission
Z Z XX Y Z XY Z YY
Fig. 5-Representation of coding of bits for data transmission transfer from the reader to a
card (Miller modified coding)
Data transmission from a card to the reader
A bit of the data transfer rate during initialization and anticollisions is
f = 13,56 MHz / 128 106 kbit/s.
One bit data transfer duration is
t = 128/13,56 MHz 9,44 мкс.
Data transmission is perfomed by modulation of carrier frequency, due to inductive connec-
tion between the aerial of the reader and the aerial of a card. Frequency of modulation (subcarrier
frequency) fs should be equal fs = 13,56 MHz / 16 847 kHz.
Hence, duration of one bit of the data is equivalent to 8 periods of subcarrier frequency.
Subcarrier frequency fs is modulated with use of amplitude modulation for coding the
transmitted data.
Bits are coded by the Manchester code with the following definitions:
- Sequence D - carrier frequency is modulated by subcarrier frequency for first half (50 %)
duration of a bit;
- Sequence E - carrier frequency is modulated by subcarrier frequency for for second half
(50 %) duration of a bit;
- Sequence F - carrier frequency is not modulated by subcarrier frequency for duration of
one bit.
The transmitted data are coded by the following sequences:
- Logic "1" it is coded by sequence D;
- Logic "0" it is coded by sequence E;
- Start of transfer is coded by sequence D;
- The end of transfer is coded by sequence F;
- Absence of the information is coded by subcarrier frequency absence
Start bit
End of
1 0 0 1 1 0transmission
DEEDD
EF
Fig. 6 Coding of a bit for data transmission from a card to the reader
Requirements to the command response time of a card
7
Ver.00/11.07.2008
IZ2822-TSe.doc

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부품번호상세설명 및 기능제조사
IZ2822

RFID circuit with read/write functions

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