SC23M28 Silan Microelectronics, SC23M28 Datasheet
SC23M28
Related parts for SC23M28
SC23M28 Summary of contents
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... MEMORY CARD IC DESCRIPTION SC23M28 is a smart card module utilizing CMOS EEPROM technology. 1024 bytes main memory with write-protect function and programmable security code. And the periphery interface is compatible with ISO7816 agreement (synchronous propagation). FEATURES * 1024 X 8 bit EEPROM * Byte addressing ...
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... =5.0V, T =25 C, and testing frequency is 20kHz) CC amb Condition Symbol SC23M28 Ratings Unit -0.3~6 V -0.3~6 V -40~125 60 mW Min. Typ. Max. Unit 2 0.5 1 ...
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... NC FUNCTION DESCRIPTIONS SC23M28 provides 1024×8 bits EEPROM memory units with write-protect for each bit. Except PSC (Programmable Security Code) memory unit, all units are readable. The unit can be erased and written before the www.DataSheet4U.com write-protect is active, or else the unit is only readable. The bit with write-protection can be programmed only once, and cannot be erased ...
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... Invalid Invalid 253 Bit mask code 1 1 254 PSC code 1 255 PSC code 2 Figure 2 Command input time sequence SC23M28 Operation With bit-protect erasure or write Without bit-protect erasure or write Write protect bit with data comparison With bit-protect read Without bit-protect read ...
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... If error occurs when erase or write data, I/O port will change from high level to low level at the raising edge of the third clock cycle. (Figure5). www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Figure3 Erase and write time sequence Figure4 Only Erase or only Write time sequence SC23M28 REV:1.0 2006.07.21 Page ...
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... Password authentication The SC23M28 is only readable without PSC authentication. The content of PSC cannot be read, if you try to read PSC, you will get “ 00” . The authentication steps are as follows: --Write one to not written error counter (EC) bit and the EC address is“ 1021” ; ...
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... When RST changes from “ 0” to“ 1” , I/O port returns to “ 1” . The flow chart is as follows: www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Figure8 PSC authentication flow chart SC23M28 REV:1.0 2006.07.21 Page ...
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... PACKAGE OUTLINE MCTS012106 P8-13 www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC23M28 UNIT: mm UNIT: mm REV:1.0 2006.07.21 Page ...
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... PACKAGE OUTLINE P8-12 FPC-1 www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 12.60±0.10 SC23M28 UNIT: mm 0.46 0.53 UNIT: mm REV:1.0 2006.07.21 Page ...
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... Persons at a work bench should be earthed via a wrist strap. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed for dispatch in antistatic/conductive containers. www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC23M28 REV:1.0 2006.07.21 Page ...