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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺

DDRSDRAM
闁辫畝锛�2478鏅�(sh铆)闁擄細2022-02-09 15:25:47

DDR(Double Data Rate) SDRAM灏辨槸闆欏�嶆暩(sh霉)鎿�(j霉)鍌宠几鐜囩殑SDRAM銆侱DR鍏�(n猫i)瀛�鏄洿鍏堥��(j矛n)鐨凷DRAM銆係DRAM鍙湪鏅�(sh铆)閻樺懆鏈熺殑涓婂崌娌垮偝杓告寚浠ゃ�佸湴鍧�鍜屾暩(sh霉)鎿�(j霉)銆傝�孌DR鍏�(n猫i)瀛樼殑鏁�(sh霉)鎿�(j霉)绶�鏈夌壒娈婄殑闆昏矾锛屽彲浠ヨ畵瀹冨湪鏅�(sh铆)閻樼殑涓娿�佷笅娌块兘鍌宠几鏁�(sh霉)鎿�(j霉)銆�


DDR SDRAM鐨勭啊浠�

DDR鍏�(n猫i)瀛樻槸鏇寸殑SDRAM銆係DRAM鍙湪鏅�(sh铆)閻樺懆鏈熺殑涓婂崌娌垮偝杓告寚浠�銆佸湴鍧�鍜屾暩(sh霉)鎿�(j霉)銆傝�孌DR鍏�(n猫i)瀛樼殑鏁�(sh霉)鎿�(j霉)绶氭湁鐗规畩鐨勯浕璺紝鍙互璁撳畠鍦ㄦ檪(sh铆)閻樼殑涓�銆佷笅娌块兘鍌宠几鏁�(sh霉)鎿�(j霉)銆傛墍浠DR鍦ㄦ瘡鍊�(g猫)鏅�(sh铆)閻樺懆鏈熷彲浠ュ偝杓稿叐鍊�(g猫)鏁�(sh霉)鎿�(j霉)锛岃�孲DRAM鍙兘鍌宠几涓�鍊�(g猫)鏁�(sh霉)鎿�(j霉)銆傝垑渚嬩締瑾�锛孌DR266鑳芥彁渚�266 MHz脳2脳4 B锛�2.1 GB/s鐨勫収(n猫i)瀛樺付瀵�傚彟澶�锛岀敱浜庡畠鏄熀浜嶴DRAM鐨勮ō(sh猫)瑷�(j矛)鍒堕�犳妧琛�(sh霉)锛屽洜姝ゅ粻鎴�銆佹祦姘寸窔绛夎ō(sh猫)鍌欑殑鏇存柊鎴愭湰鍙檷鍒颁綆銆傞�欏氨浣垮緱DDR SDRAM鐨勫児(ji脿)鏍兼瘮鏅�氱殑SDRAM璨翠笉浜嗗灏�(10锛�)銆傚洜姝わ紝DDR SDRAM鍦ㄧ暥(d膩ng)鍓嶅緱鍒颁簡闈炲父寤ｆ硾鐨勬噳(y墨ng)鐢�銆�

DDR SDRAM鑸嘢DRAM鐨勫崁(q奴)鍒�

DDR SDRAM鑸嘢DRAM鐨勪笉鍚屼富瑕侀珨鐝�(xi脿n)鍦ㄤ互涓嬪咕鍊�(g猫)鏂归潰锛�

(1) 鍒濆鍖栥�係DRAM鍦ㄩ枊濮嬩娇鐢ㄥ墠瑕侀��(j矛n)琛屽垵濮嬪寲锛岄�欓爡(xi脿ng)宸ヤ綔涓昏鏄皪妯″紡瀵勫瓨鍣ㄩ��(j矛n)琛岃ō(sh猫)缃紝鍗矼RS銆侱DR SDRAM鑸嘢DRAM涓�妯ｏ紝鍦ㄩ枊姗�(j墨)鏅�(sh铆)涔熻閫�(j矛n)琛孧RS锛屼笉閬庣敱浜庢搷浣滃姛鑳界殑澧炲锛孌DR SDRAM鍦∕RS涔嬪墠閭勫鍔犱簡涓�鍊�(g猫)鎿�(ku貌)灞曟ā寮忓瘎瀛樺櫒瑷�(sh猫)缃�(EMRS)閬庣▼銆傞�欏��(g猫)鎿�(ku貌)灞曟ā寮忓瘎瀛樺櫒灏岲LL鐨勬湁鏁堣垏绂佹銆佽几鍑洪﹨(q奴)鍕�(d貌ng)寮�(qi谩ng)搴︾瓑鍔熻兘瀵�(sh铆)鏂芥帶鍒�銆�

(2) 鏅�(sh铆)閻�銆傚墠闈粙绱筍DRAM鏅�(sh铆)宸茬稉(j墨ng)鐪嬪埌锛孲DRAM鐨勮畝/瀵噰鐢ㄥ柈涓�鏅�(sh铆)閻�銆傚湪DDR SDRAM宸ヤ綔涓鐢ㄥ樊鍒嗘檪(sh铆)閻�锛屼篃灏辨槸鍏╁��(g猫)鏅�(sh铆)閻�锛屼竴鍊�(g猫)鏄疌LK锛屽彟涓�鍊�(g猫)鏄垏涔嬪弽鐩哥殑CK#銆�

CK#骞朵笉鑳借鐞嗚В鐐哄��(g猫)瑙哥櫦(f膩)鏅�(sh铆)閻�(鍙互鍦ㄨ瑳杩癉DR鍘熺悊鏅�(sh铆)绨″柈鍦伴�欎箞姣斿柣)锛屽畠鑳借捣鍒拌Ц鐧�(f膩)鏅�(sh铆)閻樻牎婧�(zh菙n)鐨勪綔鐢ㄣ�傜敱浜庢暩(sh霉)鎿�(j霉)鏄湪CLK鐨勪笂涓嬫部瑙哥櫦(f膩)鐨�锛岄�犳垚鍌宠几鍛ㄦ湡绺煭浜嗕竴鍗�锛屽洜姝ゅ繀闋堣淇濊瓑鍌宠几鍛ㄦ湡鐨勭┅(w臎n)瀹氫互纰轰繚鏁�(sh霉)鎿�(j霉)鐨勬纰哄偝杓�锛岄�欏氨瑕佹眰灏岰LK鐨勪笂涓嬫部闁撹窛瑕佹湁鐨勬帶鍒�銆備絾鍥�?y脿n)闂囧洘?銆侀浕闃绘�ц兘鐨勬敼璁婄瓑鍘熷洜锛孋LK涓婁笅娌块枔璺濆彲鑳界櫦(f膩)鐢熻畩鍖�锛屾鏅�(sh铆)鑸囧叾鍙嶇浉鐨凜K#灏辫捣鍒扮尘姝ｇ殑浣滅敤(CLK涓婂崌蹇笅闄嶆參锛孋K#鍓囨槸涓婂崌鎱笅闄嶅揩)銆傝�岀敱浜庝笂涓嬫部瑙哥櫦(f膩)鐨勫師鍥�锛屼篃浣緾L锛�1.5鎴�2.5鎴愮偤鍙兘锛屽苟瀹规槗瀵�(sh铆)鐝�(xi脿n)銆�

(3) 鏁�(sh霉)鎿�(j霉)閬稿彇(DQS)鑴堟矕銆侱QS鏄疍DR SDRAM涓殑閲嶈淇¤櫉锛屽叾鍔熻兘涓昏鐢ㄤ締鍦ㄤ竴鍊�(g猫)鏅�(sh铆)閻樺懆鏈熷収(n猫i)婧�(zh菙n)纰哄湴鍗�(q奴)鍒嗗嚭姣忓��(g猫)鍌宠几鍛ㄦ湡锛屽苟浣挎暩(sh霉)鎿�(j霉)寰椾互婧�(zh菙n)纰烘帴鏀�銆傛瘡涓�濉奃DR SDRAM鑺墖閮芥湁涓�鍊�(g猫)闆欏悜鐨凞QS淇¤櫉绶�銆傚湪瀵叆鏅�(sh铆)锛屽畠鐢ㄤ締鍌抽�佺敱鍖楁⿱鐧�(f膩)渚嗙殑DQS淇¤櫉锛涘湪璁�鍙栨檪(sh铆)锛屽墖鐢辫姱鐗囩敓鎴怐QS鍚戝寳姗嬬櫦(f膩)閫�?锛熸ⅱ鍝塮锛孌QS灏辨槸鏁�(sh霉)鎿�(j霉)鐨勫悓姝ヤ俊铏熴��

(4) 瀵叆寤舵檪(sh铆)銆傚湪瀵叆鏅�(sh铆)锛岃垏SDRAM鐨�0寤舵檪(sh铆)涓嶄竴妯�锛孌DRSDRAM鐨勫鍏ュ欢閬插凡缍�(j墨ng)涓嶆槸0浜�銆傚湪鐧�(f膩)鍑哄鍏ュ懡浠ゅ悗锛孌QS鑸囧鍏ユ暩(sh霉)鎿�(j霉)瑕佺瓑涓�娈垫檪(sh铆)闁撴墠鏈�(hu矛)閫侀仈(d谩)銆傞�欏��(g猫)鍛ㄦ湡琚ū鐐篋QS鐩稿皪浜庡鍏ュ懡浠ょ殑寤堕伈鏅�(sh铆)闁�銆�

鐐轰粈涔堟渻(hu矛)鏈夐�欐ǎ鐨勫欢閬插憿锛熷師鍥犱篃鍦ㄤ簬鍚屾锛岀暍绔熷湪涓�鍊�(g猫)鏅�(sh铆)閻樺懆鏈熷収(n猫i)閫�(j矛n)琛屽叐娆″偝閫侀渶瑕佸緢楂樼殑鎺у埗绮惧害锛屽畠蹇呴爤瑕佺瓑鎺ユ敹鏂瑰仛濂藉厖鍒嗙殑婧�(zh菙n)鍌欐墠琛屻�倀DQSS鏄疍DR鍏�(n猫i)瀛樺鍏ユ搷浣滅殑涓�鍊�(g猫)閲嶈鍙冩暩(sh霉)锛屽お鐭殑瑭辨亹鎬曟帴鏀舵湁瑾�锛屽お闀峰墖鏈�(hu矛)閫犳垚绺界窔绌洪枒銆倀DQSS鐭笉鑳藉皬浜�0.75鍊�(g猫)鏅�(sh铆)閻樺懆鏈�锛岄暦涓嶈兘1.25鍊�(g猫)鏅�(sh铆)閻樺懆鏈熴��

(5) 绐佺櫦(f膩)闀峰害鑸囧鍏ユ帺纰�銆傚湪DDR SDRAM涓�锛岀獊鐧�(f膩)闀峰害鍙湁2銆�4銆�8涓夌ó閬告搰锛屾矑鏈変簡SDRAM鐨勯毃姗�(j墨)瀛樺彇鐨勬搷浣�(绐佺櫦(f膩)闀峰害鐐�1)鍜屽叏闋佸紡绐佺櫦(f膩)鏂瑰紡銆傚悓鏅�(sh铆)锛岀獊鐧�(f膩)闀峰害鐨勫畾缇╀篃鑸嘢DRAM鐨勪笉涓�妯ｄ簡锛屽畠涓嶅啀鎸囨墍閫ｇ簩(x霉)灏嬪潃鐨勫瓨鍎插柈鍏冩暩(sh霉)閲�锛岃�屾槸鎸囬�ｇ簩(x霉)鐨勫偝杓稿懆鏈熸暩(sh霉)銆�

灏嶄簬绐佺櫦(f膩)瀵叆锛屽鏋滃叾涓湁涓嶆兂瀛樺叆鐨勬暩(sh霉)鎿�(j霉)锛屼粛鍙互閬�(y霉n)鐢―M淇¤櫉閫�(j矛n)琛屽睆钄�銆侱M淇¤櫉鍜屾暩(sh霉)鎿�(j霉)淇¤櫉鍚屾檪(sh铆)鐧�(f膩)鍑�锛屾帴鏀舵柟鍦―QS鐨勪笂鍗囨部鑸囦笅闄嶆部渚嗗垽鏂稤M鐨勭媭鎱�(t脿i)锛屽鏋淒M鐐洪珮闆诲钩锛岄偅涔堜箣鍓嶅緸DQS鑴堟矕涓儴閬稿彇鐨勬暩(sh霉)鎿�(j霉)灏辫灞忚斀浜�銆�

锛�6锛夊欢閬查帠瀹氬洖璺�(DLL)銆侱DR SDRAM灏嶆檪(sh铆)閻樼殑鎬ф湁钁楀緢楂樼殑瑕佹眰锛岃�孌DR SDRAM鏈夊叐鍊�(g猫)鏅�(sh铆)閻橈紝涓�鍊�(g猫)鏄閮ㄧ殑绺界窔鏅�(sh铆)閻�锛屼竴鍊�(g猫)鏄収(n猫i)閮ㄧ殑宸ヤ綔鏅�(sh铆)閻�銆傚湪鐞嗚珫涓婏紝DDRSDRAM鐨勯�欏叐鍊�(g猫)鏅�(sh铆)閻樻噳(y墨ng)瑭叉槸鍚屾鐨�锛屼絾鐢变簬绋ó鍘熷洜锛屽婧害銆侀浕澹撴尝鍕�(d貌ng)鑰岀敘(ch菐n)鐢熷欢閬蹭娇鍏╄�呭緢闆ｅ悓姝�锛屾洿浣曟硜鏅�(sh铆)閻橀牷鐜囨湰韬篃鏈変笉绌�(w臎n)瀹氱殑鎯呮硜銆傞�欏氨闇�瑕佹牴鎿�(j霉)澶栭儴鏅�(sh铆)閻樺嫊(d貌ng)鎱�(t脿i)淇鍏�(n猫i)閮ㄦ檪(sh铆)閻樼殑寤堕伈渚嗗(sh铆)鐝�(xi脿n)鍏�(n猫i)閮ㄦ檪(sh铆)閻樿垏澶栭儴鏅�(sh铆)閻樼殑鍚屾锛岀偤姝ゅ皥闁�瑷�(sh猫)缃簡DLL銆傚埄鐢ㄩ�欑ó闆昏矾锛屽彲浣垮収(n猫i)閮ㄦ檪(sh铆)閻樿垏澶栭儴鏅�(sh铆)閻樹繚鎸佸悓姝ャ��

DDR SDRAM鐨勮鏄�

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妯�(bi膩o)婧�(zh菙n)鐨凞DR鍏�(n猫i)瀛樻鏄�184寮曡叧绶� DIMM(闆欓潰寮曡叧鍏�(n猫i)瀛樻)銆傚畠寰堝儚妯�(bi膩o)婧�(zh菙n)鐨�168寮曡叧绶� SDRAM DIMM锛屽彧鏄敤浜嗕竴鍊�(g猫)鍑规Ы鑰屼笉鏄疭D涓婄殑鍏╁��(g猫)鍑规Ы銆傜祫浠剁殑闀峰害涔熸槸5.25鑻卞銆�

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DQ0-DQ15:闆欏悜鏁�(sh霉)鎿�(j霉)

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