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銆�銆�鏍规摎(j霉)鍏�(n猫i)瀛樻涓婄殑寮曡叧澶氬皯锛屾垜鍊戝彲浠ユ妸鍏�(n猫i)瀛樻鍒嗙偤30绶�銆�72绶�銆�168绶氱瓑骞剧ó銆�30绶氳垏72绶氱殑鍏�(n猫i)瀛樻鍙堢ū鐐哄柈鍒楀瓨鍎插櫒妯″SIMM锛�168绶氱殑鍏�(n猫i)瀛樻鍙堢ū鐐洪洐鍒楀瓨鍎插櫒妯″DIMM銆傜洰鍓�30绶氬収(n猫i)瀛樻宸茬稉(j墨ng)娌掓湁浜�锛涘墠鍏╁勾鐨勬祦琛屽搧绋槸72绶氱殑鍏�(n猫i)瀛樻锛屽叾瀹归噺涓�鑸湁4鍏�銆�8鍏嗐��16鍏嗗拰32鍏嗙瓑骞剧ó锛涚洰鍓嶅競鍫寸殑涓绘祦鍝佺ó鏄�168绶氬収(n猫i)瀛樻锛�168绶氬収(n猫i)瀛樻鐨勫閲忎竴鑸湁16鍏嗐��32鍏�銆�64鍏�銆�128鍏嗙瓑骞剧ó锛屼竴鑸殑闆昏叇鎻掍竴姊濆氨OK浜嗭紝涓嶉亷锛屽彧鏈夊熀浜嶸X銆乀X銆丅X鑺墖绲勭殑涓绘澘鎵嶆敮鎸�168绶氱殑鍏�(n猫i)瀛樻銆�
銆�銆�璧峰垵锛岄浕鑵︽墍浣跨敤鐨勫収(n猫i)瀛樻槸涓�濉婂鐨処C锛屾垜鍊戝繀闋堟妸瀹冨�戠剨鎺ュ埌涓绘鏉夸笂鎵嶈兘姝ｅ父浣跨敤锛屼竴鏃︽煇涓�濉婂収(n猫i)瀛業C澹炰簡锛屽繀闋堢剨涓嬩締鎵嶈兘鏇存彌锛岄�欏鍦ㄦ槸澶不鍕佷簡銆傚悗渚嗭紝闆昏叇瑷▓浜哄摗鐧�(f膩)鏄庝簡妯″鍖栫殑姊濊鍏�(n猫i)瀛�锛屾瘡涓�姊濅笂闆嗘垚浜嗗濉婂収(n猫i)瀛業C锛岀浉鎳夊湴锛屽湪涓绘澘涓婅ō瑷堜簡鍏�(n猫i)瀛樻彃妲�锛岄�欐ǎ锛屽収(n猫i)瀛樻灏卞彲闅ㄦ剰鎷嗗嵏浜�锛屽緸姝�锛屽収(n猫i)瀛樼殑缍慨鍜屾摯鍏呴兘璁婂緱闈炲父鏂逛究銆�
銆�銆�鏍规摎(j霉)鍏�(n猫i)瀛樻涓婄殑寮曡叧澶氬皯锛屾垜鍊戝彲浠ユ妸鍏�(n猫i)瀛樻鍒嗙偤30绶氥��72绶�銆�168绶氱瓑骞剧ó銆�30绶氳垏72绶氱殑鍏�(n猫i)瀛樻鍙堢ū鐐哄柈鍒楀瓨鍎插櫒妯″SIMM锛�168绶氱殑鍏�(n猫i)瀛樻鍙堢ū鐐洪洐鍒楀瓨鍎插櫒妯″DIMM銆傜洰鍓�30绶氬収(n猫i)瀛樻宸茬稉(j墨ng)娌掓湁浜�锛涘墠鍏╁勾鐨勬祦琛屽搧绋槸72绶氱殑鍏�(n猫i)瀛樻锛屽叾瀹归噺涓�鑸湁4鍏�銆�8鍏�銆�16鍏嗗拰32鍏嗙瓑骞剧ó锛涚洰鍓嶅競鍫寸殑涓绘祦鍝佺ó鏄�168绶氬収(n猫i)瀛樻锛�168绶氬収(n猫i)瀛樻鐨勫閲忎竴鑸湁16鍏�銆�32鍏嗐��64鍏�銆�128鍏嗙瓑骞剧ó锛屼竴鑸殑闆昏叇鎻掍竴姊濆氨OK浜�锛屼笉閬�锛屽彧鏈夊熀浜嶸X銆乀X銆丅X鑺墖绲勭殑涓绘澘鎵嶆敮鎸�168绶氱殑鍏�(n猫i)瀛樻銆�
銆�銆�鍏�(n猫i)瀛樻鍒嗙偤DRAM鍜孯OM鍏╃ó锛屽墠鑰呭張鍙嫊鎱�(t脿i)闅ㄦ瀛樺劜鍣�锛屽畠鐨勪竴鍊嬩富瑕佺壒寰佹槸鏂烽浕鍚庢暩(sh霉)鎿�(j霉)鏈冧笩澶憋紝鎴戝�戝钩鏅傝鐨勫収(n猫i)瀛樺氨鏄寚閫欎竴绋�锛涘悗鑰呭張鍙彧璁�瀛樺劜鍣�锛屾垜鍊戝钩鏅傞枊姗熼鍏堝暉鍕曠殑鏄瓨浜庝富鏉夸笂ROM涓殑BIOS绋嬪簭锛岀劧鍚庡啀鐢卞畠鍘昏(di脿o)鐢ㄧ‖鐩や腑鐨刉indows98鎴朩indows95绯荤当(t菕ng)锛孯OM鐨勪竴鍊嬩富瑕佺壒寰佹槸鏂烽浕鍚庢暩(sh霉)鎿�(j霉)涓嶆渻涓熷け銆�
銆�銆�1.閫熷害
銆�銆�灏嶅収(n猫i)瀛樹締瑾�锛岄�熷害灏辨槸鐢熷懡銆傚収(n猫i)瀛樼殑閫熷害鐢ㄦ瘡瀛樺彇涓�娆℃暩(sh霉)鎿�(j霉)鎵�闇�瑕佺殑鏅傞枔渚嗚 閲忥紙鍠綅鐐簄s锛屽嵆绱嶇锛夈�傞�欏�嬫檪闁撹秺鐭�锛岄�熷害灏辫秺蹇紝涔熷氨妯欏織钁楀収(n猫i)瀛樼殑鎬ц兘瓒婇珮銆傛櫘閫欵DO鍏�(n猫i)瀛橀�熷害绱勭偤60ns宸﹀彸锛岀洰鍓嶆渶甯歌鐨凷DRAM閫熷害鍓囧湪5锝�15ns涔嬮枔銆�
銆�銆�2.bit銆佹暩(sh霉)鎿�(j霉)瀵害鍜屽付瀵�
銆�銆�鍏�(n猫i)瀛樼殑鏁�(sh霉)鎿�(j霉)瀵害鏄寚鍏�(n猫i)瀛樺柈浣嶆檪闁撳収(n猫i)鍌宠几?sh霉)鑷�?sh霉)鎿�(j霉)閲�锛屼互bit鐐哄柈浣�銆俠it涔熷彨鈥滀綅鈥�锛屾槸瑷堢畻姗熶腑鐨勬渶灏忓閲忓柈浣�锛屽畠鍙湁0鍜�1鍏╃ó鐙�鎱�(t脿i)銆�8鍊嬮�ｇ簩(x霉)鐨勬瘮鐗瑰彨鍋氫竴鍊嬪瓧绡�(ji茅)锛坆yte锛夈�傝�屾垜鍊戞墍瑾殑鍏�(n猫i)瀛樺付瀵�氬父鎸囩殑鏄収(n猫i)瀛樼殑鏁�(sh霉)鎿�(j霉)鍌宠几閫熺巼銆�
銆�銆�3.闂滀簬鍏�(n猫i)瀛樼殑鈥滅窔鈥�
銆�銆�鎴戝�戝钩鏅傛墍瑾殑鍏�(n猫i)瀛樺灏戔�滅窔鈥濓紝灏辨槸鎸囧収(n猫i)瀛樻鑸囦富鏉挎彃鎺ユ檪鏈夊灏戝�嬫帴瑙搁粸锛岄�欎簺鎺ヨЦ榛炲氨鏄墍璎傜殑鈥滈噾鎵嬫寚鈥�锛屾湁30绶�銆�72绶氬拰168绶氱殑鍒嗗垾銆�30绶氱殑鍏�(n猫i)瀛樻鐐烘瘡姊�8bit鐨勮(gu墨)鏍�锛�72绶氱殑鍏�(n猫i)瀛樻鏄瘡姊�32bit鐨勮(gu墨)鏍硷紝168绶氱殑鍏�(n猫i)瀛樻鏄瘡姊�64bit鐨勮(gu墨)鏍�銆傚浠婄殑闆昏叇鍥犵偤浣跨敤64bit鏁�(sh霉)鎿�(j霉)瀛樺彇鏂瑰紡锛岃嫢浣跨敤168绶氱殑鍏�(n猫i)瀛樻涓�姊濆氨鍙互婊胯冻瑕佹眰锛屾墍浠ョ洰鍓嶇殑涓绘澘涓婇兘閰嶆湁锛堢敋鑷虫槸鍙厤鏈夛級168绶氬収(n猫i)瀛樻鎻掓Ы銆�168绶氬収(n猫i)瀛樻鐨勫閲忔湁16MB銆�32MB銆�64MB銆�128MB鐢氳嚦256MB绛夈�傚浠�30绶氬収(n猫i)瀛樻宸查洠瑕撹工褰�锛�72绶氬収(n猫i)瀛樻涔熸几婕歌娣樻卑锛岃��168绶氬収(n猫i)瀛樻宸茬稉(j墨ng)鎴愮偤鏅備笅鐨勪富娴�銆�
銆�銆�4.瀹归噺
銆�銆�姣忓�嬫檪鏈熷収(n猫i)瀛樻鐨勫閲忛兘鍒嗙偤澶氱ó瑕�(gu墨)鏍硷紝姣斿鏃╂湡鐨�30绶氬収(n猫i)瀛樻灏辨湁256KB銆�1MB銆�4MB銆�8MB绛夊閲�锛屽悗渚�72绶氱殑EDO鍏�(n猫i)瀛樺張鏈�4MB銆�8MB銆�16MB绛夊閲�锛岀溂涓嬫垜鍊戜娇鐢ㄧ殑168绶歋DRAM鍏�(n猫i)瀛樹互32MB銆�64MB銆�128MB閫欏咕绋閲忔渶鐐哄父瑕�銆�
銆�銆�5.鍏�(n猫i)瀛樼殑闆诲
銆�銆�鐝�(xi脿n)鍦ㄥ父鐢ㄧ殑SDRAM涓�鑸娇鐢�3.3V闆诲锛岃�屾棭鍏堢殑FPM鍏�(n猫i)瀛樺拰EDO鍏�(n猫i)瀛樺潎浣跨敤5V闆诲锛堥棞浜嶧PM鍏�(n猫i)瀛樺拰EDO鍏�(n猫i)瀛樿珛鍙冭鍚庢枃锛夈��
銆�銆�6.SPD锛圫erial Presence Detect锛�
銆�銆�SPD鏄�1鍊�8閲濈殑EEPROM锛圗lectrically Erasable Programmable ROM锛岄浕鍙摝瀵彲绶ㄧ▼鍙畝瀛樺劜鍣級鑺墖銆傞噷闈繚瀛樿憲璜稿鍏�(n猫i)瀛樼殑閫熷害銆佸閲忋�佽姱鐗囧強鍏�(n猫i)瀛樻ā绲勫粻鍟嗙瓑淇℃伅銆傛瘡娆￠枊姗熸檪锛孊IOS閮芥渻鑷嫊璁�鍙朣PD涓墍瑷橀寗鐨勪俊鎭紝闅ㄥ悗灏辫兘姝ｇ⒑璀樺垾鍑哄収(n猫i)瀛�锛屼娇涔嬩互鐙�鎱�(t脿i)宸ヤ綔锛岀⒑淇濈郴绲�(t菕ng)鐨勭┅(w臎n)瀹�銆�
銆�銆�7.TCK锛圕lock Cycle Time锛�
鍗冲収(n猫i)瀛樻檪閻樺懆鏈�锛岀敱澶栭牷鎵�姹哄畾?锛熺強鍞靛懗顭墄鐐篢CK=1/F锛孎(xi脿n)鐐哄伐浣滄檪鐨勫闋�銆備緥濡傜郴绲�(t菕ng)鍦�100MHz澶栭牷宸ヤ綔鏅俆CK=10ns锛屽伐浣滃湪142.857MHz澶栭牷鏅俆CK=7ns銆�
銆�銆�8.CAS绛夊緟鏅傞枔锛圕AS Latency锛�
銆�銆�CAS绛夊緟鏅傞枔锛圕L锛夋寚鐨勬槸CAS淇¤櫉闇�瑕佺稉(j墨ng)閬庡灏戝�嬫檪閻樺懆鏈熶箣鍚庢墠鑳借畝瀵暩(sh霉)鎿�(j霉)銆傜洰鍓嶇鍚圥C100瑕�(gu墨)鑼冪殑SDRAM鐨凜AS绛夊緟鏅傞枔鍊兼湁2鍜�3鍏╃ó锛屾婧栧�肩偤2锛屼絾鐐轰簡绌�(w臎n)瀹氫篃鍙檷鐐�3銆傞牷鐜囩浉鍚岀殑姊濅欢涓嬶紝CAS绛夊緟鏅傞枔鐐�2鐨勫収(n猫i)瀛樿純瑭插�肩偤3鐨勫収(n猫i)瀛橀�熷害鏇村揩銆傚湪SDRAM鐨勫埗閫犻亷绋嬩腑锛岄�欎簺鍙冩暩(sh霉)琚鍏DRAM鐨凟EPROM锛堝氨鏄疭PD锛変腑锛屽湪闁嬫鏅備富鏉跨殑BIOS鏈冭嚜鍕曟鏌ヨ┎鍙冩暩(sh霉)銆�
銆�?銆�?锛夊湪涓嶅悓鐨勪富鏉夸笂鎻愪緵浜�30绶�銆�72绶氭垨168绶氱殑鍏�(n猫i)瀛樻彃妲�锛屽皪鎳夌殑鎳夎┎浣跨敤鍚堥仼鐨勫収(n猫i)瀛�銆傚ぇ澶氭暩(sh霉)586锛堜互涓婄殑锛変富鏉夸笂鍚屾檪鎻愪緵浜�72绶氬拰168绶氬収(n猫i)瀛樻彃妲斤紝浣嗛櫎灏戞暩(sh霉)涓绘澘澶�锛屼竴鑸笉鑳藉悓鏅備娇鐢ㄥ叐绋収(n猫i)瀛橈紝鍥犵偤浜岃�呯殑闆诲涓嶅悓銆�
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