SC23M42A SILAN [Silan Microelectronics Joint-stock], SC23M42A Datasheet

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SC23M42A

Manufacturer Part Number
SC23M42A
Description
256BYTE MEMORY CARD IC
Manufacturer
SILAN [Silan Microelectronics Joint-stock]
Datasheet
256-BYTE MEMORY CARD IC
DESCRIPTION
technology. 256 bytes main memory, 32-bit protection memory, 3
bytes user password, and 3-bit password wrong counter (Value:
00000D2D1D0). And the periphery interface is compatible with
ISO7816 agreement (synchronous propagation).
FEATURES
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
SC23M42 is a smart card module utilizing CMOS EEPROM
* 256 X 8 bit EEPROM
* Byte addressing
* Write-protect area (former 32 bytes) can execute the write-protect
* 32 X 1bit protect memory
* Serial two buses interface
* More than 100,000 times write endurance cycles
* Data retention of more than 10 years
* Contact definition and serial interface comply to ISO7816
* 3 Bytes user password, 3 bits(bit0-bit2) error counter
* Before the password is checked, all the data can be read; if the
* Password error counter, and the initial value is 3. Checking the
* Comply to SLE4442
separately, and after the write-protect, the content cannot be
changed.
password once, subtracts 1, if the value of the counter is 0, the
memory card will be locked automatically, and the data can only
be read, the password cannot be checked again; When the value
of the counter is not 0, if the password checking is correct for one
time, the value comes back to initial value.
specification (synchronous propagation)
password is correct, you can write or amend the data and the
password.
ORDERING INFORMATION
APPLICATIONS
SC23M42A
SC23M42B
* used for various IC memory cards.
Device
REV:1.0
P6-05
MCTS012402
Package
SC23M42
Page 1 of 11
2006.07.21

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SC23M42A Summary of contents

Page 1

... Comply to SLE4442 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC23M42 ORDERING INFORMATION Device Package SC23M42A P6-05 SC23M42B MCTS012402 APPLICATIONS * used for various IC memory cards. REV:1.0 2006.07.21 Page ...

Page 2

BLOCK DIAGRAM High voltage generator Reference current generator Power on reset detector VCC ABSOLUTE MAXIMUM RATINGS Characteristics Power Supply Voltage Input Voltage Storage Temperature Power Dissipation DC ELECTRICAL CHARACTERISTICS Characteristics Power Supply Voltage Operating Current H Input Voltage(I/O, CLK, RST) ...

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AC ELECTRICAL CHARACTERISTICS (Unless otherwise specified, V =5.0V Characteristics Reset Time CLK (High Level) CLK (Low Level) Write Time Erase Time Set-up Time(D/CLK) Set-up Time (CLK/RST) Set-up Time (RST/CLK) Hold Time (D/CLK) Delay Time (CLK/D) Rise Time (I/O, ...

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FUNCTION DESCRIPTIONS SC23M42 provides 256×8 bits EEPROM memory units and 32×1 protect units, and there is writing-protect for the former 32-bit bytes. Except PSC (Programmable Security Code) memory unit, all units are readable. The unit can be erased and written ...

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Instruction format Instruction table Byte1control Byte2 Address B7B6B5B4 B3B2B1B0 Address bit Address bit invalid 0 ...

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Write main memory Binary Hex This command writes the main memory in bytes. According to the new and old data, carry out one of the operations below in process mode: Erase and write ...

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Write protect memory Binary Hex Compare the command input data and the original data of this unit, if they are the same, then corresponding write-protect bit is active, and the unit is only ...

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Compare authentication data Binary Hex Validate the appointed byte of PSC each time. 4. Password authentication The SC23M42 is only readable without PSC authentication. The content of PSC cannot be read, if you ...

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HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Figure8 PSC authentication flow chart SC23M42 REV:1.0 2006.07.21 Page ...

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PACKAGE OUTLINE P6-05 MCTS012402 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC23M42 UNIT: mm UNIT: mm REV:1.0 2006.07.21 Page ...

Page 11

HANDLING MOS DEVICES: Electrostatic charges can exist in many things. All of our MOS devices are internally protected against electrostatic discharge but they can be damaged if the following precautions are not taken: Persons at a work bench should be ...

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