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IZ1991 PDF даташит

Спецификация IZ1991 изготовлена ​​​​«Integral» и имеет функцию, называемую «CIRCUIT OF MULTIFUNCTIONAL ELECTRONIC KEY».

Детали детали

Номер произв IZ1991
Описание CIRCUIT OF MULTIFUNCTIONAL ELECTRONIC KEY
Производители Integral
логотип Integral логотип 

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IZ1991 Даташит, Описание, Даташиты
IZ1991
CIRCUIT OF MULTIFUNCTIONAL ELECTRONIC KEY
WITH DATA PROTECTION
(functional equvivalent DS1991 «Maxim-Dallas Semiconductor»)
IZ1991 – circuit of multifunctional electronic key with data protection is perposed for
autonomos identification in systems of access control, registration and identification of object.
Circuit performs following functions:
One-time data writing in to ROM;
Data storage and reading out of ROM;
CRC-code (Cyclic Redundancy Check) generation ;
Data transfer via 1-wire interface;
Data and password storage for three independent keys.
Main features:
1152-bit secure memory with read/write possibility;
Secure memory can be decoded only on matching 64-bit password
Memory is partitioned into 3 blocks of 384 bits each
64-bit password and ID fields for each memory block
512-bit scratchpad ensures data transfer integrity
Supply voltage (battery supply), UDD, from 2,7 to 3,3 V
Operating temperature range from - 40 to +85°С
Table 1 - Contact pad description
Contact
pad num-
ber
Symbol
Function
01
TEST1
Test pad
02
TEST2
Test pad
03
GND
Common pin
04
DATA
Data I/O
05 UDD Supply voltage
06
TEST3
Test pad
07
TEST4
Test pad
08
TEST5
Test pad
09
TEST6
Test pad
10
TEST7
Test pad
11
TEST8
Test pad
12
TEST9
Test pad
13 TEST10 Test pad
Note – Contact pads TEST1 – TEST10 are purposed for testing and not used
by customer
Ver.01/01.10.2009
1









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IZ1991 Даташит, Описание, Даташиты
IZ1991
DATA
1-Wire
interface
unit
Scratchpad
memory
512 bit
ОЗУ
Subkey memory
1152 bit
(3 subkeys
384 bit each)
ROM
64х1 bit
Control unit
...
TEST1 . . . TEST10
Fig. 1 – Block diagramm
GND
UDD
Ver.01/01.10.2009
2









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IZ1991 Даташит, Описание, Даташиты
IZ1991
Table 2 – Absolute maximum ratings
Symbol
Parameter
UCC Supply voltage (on external pullup resistor)
UIL Low level input voltage
UIH High level input voltage
Та Ambient temperature
Note - All voltages are indicated relative to GND
Norm
Min Max
-0,5 7,0
-0,3 -
- UCC+0,3
-60 125
Unit
V
V
V
oC
Table 3 – Recommended operation conditions
Symbol
Parameter
UCC
Supply voltage (on external pullup resis-
tor)
UDD Supply voltage (from battery cell)
UIL Low level input voltage
UIH High level input voltage
Та Operating ambient temperature
Note - All voltages are indicated relative to GND
Norm
Min Max
2,8 6,0
2,7 3,3
0 0,8
2,2 UCC
-40 85
Unit
V
V
V
V
oC
Immunity to ESD potential 1000 V. Limiting value of the potential of static electricity 2000 V.
Ver.01/01.10.2009
3










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Номер в каталогеОписаниеПроизводители
IZ1990CMOS ICIK Semiconductor
IK Semiconductor
IZ1990CMOS IC FOR ELECTRONIC KEYIntegral
Integral
IZ1991CIRCUIT OF MULTIFUNCTIONAL ELECTRONIC KEYIntegral
Integral

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