IZ4442 Datasheet PDF - IK Semiconductor
| Part Number | IZ4442 | |
| Description | Intelligent 256 byte EEPROM with wirte protect function & security logic | |
| Manufacturers | IK Semiconductor | |
| Logo |  |
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There is a preview and IZ4442 download ( pdf file ) link at the bottom of this page. Total 20 Pages | ||
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m TECHNICAL DATA
U.coINTELLIGENT 256-BYTE EEPROM WITH WRITE PROTECT
et4FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)
SheFeatures
ta• 256 x 8-bit EEPROM organization
a• Byte-wise addressing
.D• Irreversible byte-wise write protection of lowest
w• 32 addresses (Byte 0...31)
w• 32 x 1-bit organization of protection memory
w • Two-wire link protocol
• End of processing indicated at data output
• Answer-to-Reset ace. to ISO standard 7816-3
m• Programming time 2.5 ms per byte for both erasing
• and writing
o• Minimum of 104 write/erase cycles1)
• Data retention for minimum of ten years1)
.c• Contact configuration and serial interface in accordance
• with ISO standard 7816 (synchronous transmission)
UAdditional Feature of IZE4442
t4Data can only be changed after entry of the correct 3-byte programmable security code (security
memory)
eType
Ordering Code
Package
eIZE4442 M2.2
on request
Wire-Bonded Module M2.2
IZE4442 C
on request
Chip
hIZE4442 M2.2
on request
Wire-Bonded Module M2.2
IZE4442 C
on request
Chip
S1) Values are temperature dependent, for further information please refer to your sales office.
taPin Configuration(top view)
a(Card Contacts)Pin Definitions and Functions
.DCard Contact
C1
C2
wC3
C4
wC5
wC6
Symbol
VCC
RST
CLK
N.C.
GND
N.C.
Function
Supply voltage
Reset
Clock input
Not connected
Ground
Not connected
C7 I/O Bi-directional data line
(open drain)
omC8
N.C.
Not connected
.cIZE4442 comes as a M2.2 wire-bonded module for embedding in plastic cards or as a die for
www.DataSheet4Ucustomer packaging.
1
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IZ4442
Processing Mode
In this mode the 1C processes internally. The 1C has to be clocked continuously until I/O, which was
switched to level L after the first falling edge of CLK, is set to high impedance level Z. Any start and
stop condition is discarded during this mode.
Note: The RST line is low during the modes mentioned above. If RST is set to high during the CLK
low level any operation is aborted and I/O is switched to high impedance Z (Break).
Figure 3 Operational Modes
Commands
Command Format
Each command consists of three bytes:
MSB Control LSB
MSB
Address
LSB
MSB Data
LSB
B7 B6 B5 B4 B3 B2 B1 B0 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IZ4442 electronic component. |
| Information | Total 20 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ IZ4442.PDF Datasheet ] | |
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| Part Number | Description | MFRS |
| IZ4442 | The function is Intelligent 256 byte EEPROM with wirte protect function & security logic. IK Semiconductor | |
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