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

PLD
闁辫畝锛�25038鏅�(sh铆)闁擄細2010-12-17 09:29:48

銆�銆�PLD鍗硃rogrammable logic device锛岃鐐�鍙法绋嬮倧杓櫒浠�锛屾槸涓�鍊�(g猫)鍙互鐢�(ch菐n)鐢熶换鎰忛倧杓几鍑虹殑閫氱敤鍨嬫暩(sh霉)瀛�閭忚集闆昏矾鍣ㄤ欢銆侾LD鏈夊緢楂樼殑闆嗘垚搴�锛岃冻浠ユ豢瓒宠ō(sh猫)瑷�(j矛)涓�鑸殑鏁�(sh霉)瀛楃郴绲�(t菕ng)鐨勯渶瑕侊紝鑸囬杸銆佹垨闁�銆侀潪闁�鏄疨LD鏈�鍩烘湰鐨勬(g貌u)鎴愩��

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銆�銆�鏃╂湡鐨勫彲绶ㄧ▼閭忚集鍣ㄤ欢鍙湁鍙法绋嬪彧璁�瀛樿帛鍣�(PROM)銆佺传澶栫窔鍙寜闄ゅ彧璁�瀛樿帛鍣�(EPROM)鍜岄浕鍙摝闄ゅ彧璁�瀛樿帛鍣�(EEPROM)涓夌ó銆傜敱浜庣祼(ji茅)妲�(g貌u)鐨勯檺鍒�锛屽畠鍊戝彧鑳藉畬鎴愮啊(ji菐n)鍠殑鏁�(sh霉)瀛楅倧杓姛鑳�銆�

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銆�銆�PAL鍣ㄤ欢鏄従(xi脿n)鍫�(ch菐ng)鍙法绋嬬殑锛屽畠鐨勫(sh铆)鐝�(xi脿n)宸ヨ棟鏈夊弽鐔旂挡鎶�琛�(sh霉)銆丒PROM鎶�琛�(sh霉)鍜孍EPROM鎶�琛�(sh霉)銆傞倓鏈変竴椤炵祼(ji茅)妲�(g貌u)鏇寸偤闈堟椿鐨勯倧杓櫒浠舵槸鍙法绋嬮倧杓櫍鍒�(PLA)锛屽畠涔熺敱涓�鍊�(g猫)鈥滆垏鈥濆钩闈㈠拰涓�鍊�(g猫)鈥滄垨鈥濆钩闈㈡(g貌u)鎴�锛屼絾鏄�欏叐鍊�(g猫)骞抽潰鐨勯�ｆ帴闂�(gu膩n)绯绘槸鍙法绋嬬殑銆�

銆�銆�PLA鍣ㄤ欢鏃㈡湁鐝�(xi脿n)鍫�(ch菐ng)鍙法绋嬬殑锛屼篃鏈夋帺鑶滃彲绶ㄧ▼鐨�銆傚湪PAL鐨勫熀绀�(ch菙)涓婏紝鍙堢櫦(f膩)灞曚簡涓�绋�氱敤闄ｅ垪閭忚集GAL锛屽GAL16V8,GAL22V10 绛�銆傚畠閲囩敤浜咵EPROM宸ヨ棟锛屽(sh铆)鐝�(xi脿n)浜嗛浕鍙寜闄ゃ�侀浕鍙敼瀵�锛屽叾杓稿嚭绲�(ji茅)妲�(g貌u)鏄彲绶ㄧ▼鐨勯倧杓畯鍠厓锛屽洜鑰屽畠鐨勮ō(sh猫)瑷�(j矛)鍏锋湁寰堝挤(qi谩ng)鐨勯潏娲绘��锛岃嚦浠婁粛鏈夎ū澶氫汉浣跨敤銆傞�欎簺鏃╂湡鐨凱LD鍣ㄤ欢鐨勪竴鍊�(g猫)鍏卞悓鐗归粸(di菐n)鏄彲浠ュ(sh铆)鐝�(xi脿n)閫熷害鐗规�ц純濂界殑閭忚集鍔熻兘锛屼絾鍏堕亷浜庣啊(ji菐n)鍠殑绲�(ji茅)妲�(g貌u)涔熶娇瀹冨�戝彧鑳藉(sh铆)鐝�(xi脿n)瑕�(gu墨)妯¤純灏忕殑闆昏矾銆�

銆�銆�鐐轰簡褰岃(b菙)閫欎竴缂洪櫡锛�20涓栫磤(j矛)80骞翠唬涓湡Altera鍜孹ilinx鍒嗗垾鎺ㄥ嚭浜嗛浼间簬PAL绲�(ji茅)妲�(g貌u)鐨勬摯(ku貌)灞曞瀷 CPLD鍜岃垏妯�(bi膩o)婧�(zh菙n)闁�闄ｅ垪椤炰技鐨凢PGA锛屽畠鍊戦兘鍏锋湁楂旂郴绲�(ji茅)妲�(g貌u)鍜岄倧杓柈鍏冮潏娲�銆侀泦鎴愬害楂樹互鍙婇仼鐢ㄨ寖鍦嶅绛夌壒榛�(di菐n)銆傞�欏叐绋櫒浠跺吋瀹逛簡PLD鍜岄�氱敤闁�闄ｅ垪鐨勫劒(y艒u)榛�(di菐n)锛屽彲瀵�(sh铆)鐝�(xi脿n)杓冨ぇ瑕�(gu墨)妯＄殑闆昏矾锛岀法绋嬩篃寰堥潏娲汇��

銆�銆�鑸囬杸闄ｅ垪绛夊叾瀹傾SIC鐩告瘮锛屽畠鍊戝張鍏锋湁瑷�(sh猫)瑷�(j矛)闁嬬櫦(f膩)鍛ㄦ湡鐭�銆佽ō(sh猫)瑷�(j矛)鍒堕�犳垚鏈綆銆侀枊鐧�(f膩)宸ュ叿鍏堥��(j矛n)銆佹(bi膩o)婧�(zh菙n)鐢�(ch菐n)鍝佺劇闇�娓�(c猫)瑭�銆佽唱(zh矛)閲忕┅(w臎n)瀹氫互鍙婂彲瀵�(sh铆)鏅�(sh铆)鍦ㄧ窔妾㈤(y脿n)绛夊劒(y艒u)榛�(di菐n)锛屽洜姝よ寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鐢�(ch菐n)鍝佺殑鍘熷瀷瑷�(sh猫)瑷�(j矛)鍜岀敘(ch菐n)鍝佺敓鐢�(ch菐n)(涓�鑸湪10,000浠朵互涓�)涔嬩腑銆傚咕涔庢墍鏈夋噳(y墨ng)鐢ㄩ杸闄ｅ垪銆丳LD鍜屼腑灏忚(gu墨)妯￠�氱敤鏁�(sh霉)瀛楅泦鎴愰浕璺殑鍫�(ch菐ng)鍚堝潎鍙噳(y墨ng)鐢‵PGA鍜孋PLD鍣ㄤ欢銆�

妲�(g貌u)鎴�

銆�銆�PLD鏄敱鈥滆垏闁�闄ｅ垪鈥濆拰鈥滄垨闁�闄ｅ垪鈥濆姞涓婅几鍏ヨ几鍑洪浕璺(g貌u)鎴�锛屼换浣曠祫鍚堝嚱鏁�(sh霉)閮藉彲浠ヨ〃绀虹偤鑸�-鎴栬〃閬�(d谩)寮忥細

銆�銆�鐢ㄥ叐绱�(j铆)鑸�-鎴栭浕璺(sh铆)鐝�(xi脿n)

PLD鐨勭祼(ji茅)妲�(g貌u)

鍒嗛

PLD鐨勫垎椤�

绶ㄧ▼鍏冧欢

銆�銆�PLD瑕佸(sh铆)鐝�(xi脿n)绶ㄧ▼鎳�(y墨ng)鐢紝鍏剁法绋嬩俊鎭繀闋堝瓨鍎�(ch菙)鍦ㄨ姱鐗囧収(n猫i)閮ㄧ殑绶ㄧ▼鍏冧欢涓�锛屾垨鑰呰PLD锛堝寘鎷叏閮⊿PLD銆丆PLD銆丗PGA锛夊繀闋堜娇鐢ㄦ煇浜涚壒瀹氱殑闆诲瓙闁嬮棞(gu膩n)鑳藉瀛樺劜(ch菙)閭忚集閰嶇疆鏁�(sh霉)鎿�(j霉)鐨勫瓨鍎�(ch菙)鍣ㄤ締浣滅偤瀹冪殑绶ㄧ▼鍏冧欢

銆�銆�鐝�(xi脿n)浠LD浣跨敤鐨勫収(n猫i)閮ㄧ法绋嬪厓浠朵富瑕佹湁濡備笅涓夌ó椤炲瀷

銆�銆�1 涓�娆℃�х法绋嬬殑鐔旂挡鎴栧弽鐔旂挡闁嬮棞(gu膩n)

銆�銆�2 鍩轰簬娴煹鎶�琛�(sh霉)鐨勫瓨鍎�(ch菙)鍣�銆傚寘鎷传澶栫窔闆绘摝闄ゅ拰闆绘摝闄ょ殑EPROM銆丒?PROM鑸囬杻瀛�

銆�銆�3 鍏佽ū鐒￠檺娆＄法绋嬩娇鐢ㄧ殑闈滄厠(t脿i)瀛樺劜(ch菙)鍣⊿RAM

銆�銆�鐔旂挡(Fuse)鎴栧弽鐔旂挡(Antifuse)闁嬮棞(gu膩n)鐐轰竴娆℃�х法绋嬩娇 鐢ㄧ殑闈炴槗澶辨�у厓浠�,绶ㄧ▼鍚庡嵆浣跨郴绲�(t菕ng)鏂烽浕,瀹冨�戜腑瀛� 鍎�(ch菙)鐨勭法绋嬩俊鎭笉鏈�(hu矛)涓熷け.浣嗗畠鍊戝彧鑳藉涓�娆�,鏁呯ū涔� 鐐篛TP(One Time Programming)绶ㄧ▼鍏冧欢.

銆�銆�鍩轰簬娴煹鎶�琛�(sh霉)鐨凟2PROM鍜屽揩闁冨瓨鍎�(ch菙)鍣ㄤ篃鏄潪鏄撳け鎬х殑 绶ㄧ▼鍏冧欢,浣嗗畠鍊�?c猫)璇昐澶氭鍙嶅京(f霉)绶ㄧ▼瀵叆,骞跺彲鐐哄櫒 浠惰ō(sh猫)缃繚瀵嗕綅,浠ラ槻姝㈠皪(du矛)PLD鐨勯潪娉曞京(f霉)鍒�.

銆�銆�闈滄厠(t脿i)瀛樺劜(ch菙)鍣⊿RAM灞簬鏄撳け鎬х殑绶ㄧ▼鍏冧欢,鎺夐浕鍚庡畠瀛� 鍎�(ch菙)鐨勯厤缃暩(sh霉)鎿�(j霉)灏囩珛鍗虫秷澶�,浣嗗畠鑳藉湪宸ヤ綔閬庣▼涓揩閫� 绶ㄧ▼.

銆�銆�娴煹鍨嬬法绋嬪厓浠跺拰SRAM閮藉彲浠ュ娆�,鍙嶅京(f霉)閫�(j矛n)琛岀法绋嬫噳(y墨ng) 鐢�.灏ゅ叾鏄疭RAM,鍏剁法绋嬫噳(y墨ng)鐢ㄧ殑娆℃暩(sh霉)骞句箮鐒￠檺.

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�(sh铆)锛屼竴鏌ョ櫨閫�锛�

宸叉敹閷勮姊�156832鍊�(g猫)