SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?1?of?10 8k-bit?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 *??permanent?write-protect?for?each?byte *??1024?x?1bit??memory?protection *??serial?three?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?specification (synchronous?propagation) *? 2byte? programmable? security? code? psc(programmable? security code),? ? and? the? data? can? be? changed? only? when? pass? the? psc authentication *??compatible?with?sle4428 applications *?used?for?various?ic?cards. ordering?information device package SC23M28a? p8-13 SC23M28b? mcts012106 SC23M28c? p8-12 SC23M28d? fpc-1 block?diagram
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?2?of?10 absolute?maximum?ratings characteristic symbol ratings unit power?supply?voltage v cc -0.3~6 v input?voltage v i -0.3~6 v storage?temperature t stg -40~125 c power?dissipation p tot 60 mw dc?electrical?characteristics ?(v cc =5v,?t amb ?=25 c) characteristics symbol condition min. typ. max. unit supply?voltage v cc 2.4 -- 5.5 v supply?current i cc -- 2 10 ma h?input?voltage(i/o,?clk,?rst) v ih 3.0 -- v cc v l?input??voltage(i/o,?clk,?rst) v il 0 -- 1.2 v h?input??current?(i/o,?clk,?rst) i h -- 3 5 m a l? output? current? (v l =0.4v,? open- drain) i ol 0.5 1.0 -- ma h? leakage? ? current? (v h =v cc , open-drain) i oh -- -- 1 m a input?capacitance ci -- -- 10 pf operating?frequency f -- 20 -- khz ac?electrical?characteristics (unless?otherwise?specified,?v cc =5.0v,?t amb =25 c,?and?testing?frequency?is?20khz) characteristics symbol condition min. typ. max. unit reset?time t re 9 -- -- m s clk?(high?level) t h 10 -- -- m s clk?(low?level) t l 10 -- -- m s write?time t w 5 -- -- ms erase?time t e 5 -- -- ms set?up?time(d/clk) t d1 4 -- -- m s set?up?time?(clk/rst) t d3 4 -- -- m s set?up?time?(rst/clk) t d4 4 -- -- m s hold?time(d/clk) t d5 4 -- -- m s delay?time(clk/d) t d2 6 -- -- m s rise?time(i/o,?clk,?rst) t r -- -- 1 m s fall?time(i/o,?clk,?rst) t f -- -- 1 m s
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?3?of?10 pin?configuration 1 2 3 4 8 7 6 5 v cc rst clk nc nc nc i/o gnd ( contact?of?the?card ) pin?descriptions pin?no. symbol i/o description 1 v cc -- power?supply?voltage?is?5v 2 rst i reset?signal 3 clk i clock?signal 4 nc -- no?connect 5 gnd -- ground 6 nc -- no?connect 7 i/o i/o data?bus(open-drain?output) 8 nc -- no?connect function?descriptions SC23M28? provides? 10248? 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 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.? the? chip? has? one? 8-bit? error? register? which? provides? 8? times? continuous? psc authentication,?after?8?times?the?chip?cannot?be?erased?and?written. 1. reset?and?reset?acknowledge the? chip? enters? the? power? on?reset? state? when? it? is? power? on,? and? this?state? will? end? by?the? reset? signal.? the reset? signal? begins? when? rst? changed? from? ?0?? to? ?1?,? and? end? when? clk? changed? from? ?0?? to?1?.? the? reset signal? can? stop? any? active? instruction.? read? operation? must? be? carried? out? first? after? power? on? reset,? then? the other?operations. the? reset? acknowledge? complies? to? iso7816-3? synchronous? propagation.? the? address? counter? is? set? to? ?0? automatically?and?will?send?the?first?data?to?the?i/o?port.?as?the?clock?signal,?the?address?data?can?be?read?serially. the?details?refer?to?the?figure?1.
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?4?of?10 figure?1?reset?and?reset?acknowledge v cc rst clk i/o 1 2 3 31 32 32 31 1 2 3 t d4 rst t d4 t d2 t h t l t d5 clk i/o 2. instruction?format the?chip?inputs?and?outputs?the?data?by?i/o?ports,?and?the?rst?signal?will?control?the?direction?of?the?data; rst=1,?i/o?is?instruction?input; rst=0,?i/o?is?data?output. instruction?table byte1 byte2 byte3 s0?s1???s2?s3?s4?s5 a8?a9 a0-a7 d0-d7 operation 1??0? 0??0??1??1 input?data with?bit-protect?erasure?or?write 1??1? 0??0??1??1 input?data without?bit-protect?erasure?or?write 0??0? 0??0??1??1 comparative?data write?protect?bit?with?data?comparison 0??0? 1??1??0??0 invalid with?bit-protect?read 0??1? 1??1??0??0 address bit 8,?9 address bit 0-7 invalid without?bit-protect?read 0??1? 0??0??1??1 253 bit?mask?code write?error?counter 1??0? 1??1??0??0 254 psc?code?1 authentication?psc?code?1 1??0? 1??1??0??0 1??1 255 psc?code?2 authentication?psc?code?2 figure?2??command?input?time?sequence
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?5?of?10 3. instruction?description 3.1? erase/write?operation 1)? erase?or?write?with?protect?bit the?write?protect?bit?is?active?as?long?as?you?write?the?data,?and?this?unit?is?only?readable. 2)? erase?or?write?without?protect?bit. write?the?data?but?not?set?the?protect?bit,?so?this?unit?can?still?be?erased?and?written. 3)? write?protect?bit?with?data?comparison when?the?command?is?executed,?it?will?compare?the?data?and?the?content?of?the?destination?address unit,?if?the?contents?are?the?same,?then?write??0??to?the?corresponding?address?unit;?if?the?contents?are different,?do?nothing. the?chip?can?execute?3?erase?and?write?operation: erase?and?write?(last?203?clock?cycles)?(figure3); only?write:?used?for?some?bits?of?1?byte?data?change?from??1??to??0?(last?103?clock?cycles)(figure4); only?erase:?data?is?ff?(last?103?clock?cycles)?(figure4). 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). figure3?erase?and?write?time?sequence figure4?only?erase??or?only?write?time?sequence
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?6?of?10 figure5?time?sequence?of?erase?or?write?error 3.2? read?operation 1)? read?with?protect?bit this?command?will?read?the?content?of?the?destination?address?unit?and?the?corresponding?protect?bit together,?9?bits?in?total?(figure6).?after?9?clock?cycles,?the?address?increases?by?1?automatically. 2)? read?without?protect?bit this?command?will?only?read?the?content?of?the?destination?address?unit ? figure6 ? .?after?8?clock cycles,?the?address?increases?by?1?automatically. when?rst?changes?from??0??to?1?,?read?operation?stops. figure6?read?operation?time?sequence 3.3? 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?; --input?the?first?byte?data?of?psc?code,?and?the?address?is?1022?; --input?the?second?byte?data?of?psc?code,?and?the?address?is??1023?; --if?pass?the?authentication,?ec?can?be?erased.
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?7?of?10 figure7?time?sequence?of?write?error?counter?and?psc?code?authentication if? the?initial? value? of? the? error? counter? is? ?00?,? the? error? counter? cannot? be? written,? and? also? cannot? go?through the?password?authentication.?after?the?psc?authentication,?i/o?port?will?change?from??1??to??0??at?the?raising?edge of?the?second?clock?no?matter?pass?the?authentication?or?not.?when?rst?changes?from??0?to?1?,?i/o?port?returns to??1?.?the?flow?chart?is?as?follows: figure8?psc?authentication?flow?chart
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?8?of?10 package?outline mcts012106 unit:?mm p8-13 unit:?mm
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?9?of?10 package?outline p8-12 unit:?mm 0. 46 0. 53 12 . 60 0. 10 fpc-1 unit:?mm
SC23M28 hangzhou?silan?microelectronics?co.,ltd ?rev:1.0???????2006.07.21 http:?www.silan.com.cn????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?10?of?10 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?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.
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