4浣嶄簩閫�(j矛n)鍒惰▓鏁�(sh霉)锛氬彲浠ュ皪杓稿叆鐨勬檪閻樹俊铏熼��(j矛n)琛岄仦澧炶▓鏁�(sh霉)锛屾渶澶у彲瑷堟暩(sh霉)鍒�15锛堝嵆2^4 - 1锛�锛岀劧鍚庢孩鍑哄洖鍒�0銆�
銆�銆�鍚屾�ラ��(y霉)缃�锛圥arallel Load锛夛細鍙�浠ラ�氶亷瑷�(sh猫)缃�闋�(y霉)缃�寮曡叧锛圠OAD锛変締骞惰�屽姞杓変换鎰忓洓浣嶄簩閫�(j矛n)鍒舵暩(sh霉)鍊�銆�
銆�銆�鐣版�ユ竻闆讹紙Asynchronous Clear锛夛細閫氶亷娓呴浂寮曡叧锛圕LEAR锛夊彲浠ョ珛鍗冲京(f霉)浣嶈▓鏁�(sh霉)鍣ㄥ埌0锛屼笉鍙楁檪閻樹俊铏熺殑褰遍熆銆�
銆�銆�閫�(j矛n)浣嶈几鍑猴紙Carry Out锛夛細鐣�(d膩ng)瑷堟暩(sh霉)閬�(d谩)鍒版渶澶у�煎悗鏈冪敘(ch菐n)鐢熶竴鍊嬮��(j矛n)浣嶄俊铏�锛屽彲鐢ㄤ簬绱氳伅(li谩n)澶氬�嬭▓鏁�(sh霉)鍣ㄤ互瀵︾従(xi脿n)鏇村ぇ浣嶆暩(sh霉)鐨勮▓鏁�(sh霉)銆�
銆�銆�鍏�(n猫i)閮ㄨ秴鍓嶉��(j矛n)浣嶏紙Look-Ahead Carry锛夛細閫欑ó瑷�(sh猫)瑷堝厑瑷遍珮閫熻▓鏁�(sh霉)锛屽苟涓斿湪澶氱墖74161绱氳伅(li谩n)鏅傝兘鏈夋晥娓涘皯寤堕伈銆�

Vcc (Pin 16) 鍜� GND (Pin 8)锛氬垎鍒ョ偤闆绘簮姝ｆサ鍜屽湴绶�銆�
銆�銆�A, B, C, D (Pins 3, 4, 5, 6)锛氶爯(y霉)缃�鏁�(sh霉)鎿�(j霉)杓稿叆绔�锛屽湪LOAD淇¤櫉鐐轰綆闆诲钩鏅傦紝閫欎簺寮曡叧鐨勬暩(sh霉)鎿�(j霉)鏈冭��鍔犺級鍒拌▓鏁�(sh霉)鍣ㄤ腑銆�
銆�銆�QA, QB, QC, QD (Pins 12, 11, 10, 9)锛氱暥(d膩ng)鍓嶈▓鏁�(sh霉)鍊肩殑杓稿嚭绔�锛屽垎鍒ヤ唬琛ㄤ簡浜岄��(j矛n)鍒舵暩(sh霉)鐨勭��0浣嶈嚦绗�3浣嶃��
銆�銆�CLK (Pin 2)锛氭檪閻樿几鍏ョ��锛屾瘡鍒颁締涓�鍊嬩笂鍗囨部锛岃▓鏁�(sh霉)鍣ㄦ渻鏍规摎(j霉)鐣�(d膩ng)鍓嶇媭鎱�(t脿i)閫�(j矛n)琛屽姞1鎿嶄綔銆�
銆�銆�ENP, ENT (Pins 7, 10)锛氫娇鑳借几鍏ョ��锛屽繀闋堥兘鐐洪珮闆诲钩鎵嶈兘浣胯▓鏁�(sh霉)鍣ㄦ�ｅ父宸ヤ綔銆�
銆�銆�Ripple Carry Output (RCO) (Pin 15)锛氶��(j矛n)浣嶈几鍑�锛岀暥(d膩ng)瑷堟暩(sh霉)鍣ㄦ豢鏅傛縺娲�锛屽彲鐢ㄤ簬閫ｆ帴涓嬩竴鍊嬭▓鏁�(sh霉)鍣ㄧ殑鏅傞悩杓稿叆銆�
銆�銆�CLEAR (Pin 1)锛氱暟姝ユ竻闆惰几鍏�锛屼綆闆诲钩鏈夋晥銆�
銆�銆�LOAD (Pin 9)锛氶爯(y霉)缃�鎺у埗杓稿��锛屼綆闆诲钩鏈夋晥锛屽厑瑷卞苟琛屽姞杓夋柊鐨勮▓鏁�(sh霉)鍊�銆�

瑷堟暩(sh霉)鍣�锛氫綔鐐哄熀鏈�鐨勮▓鏁�(sh霉)鍠�鍏冿紝鍙�鐢ㄤ簬鍚勭ó闇�瑕佽▓鏁�(sh霉)鐨勬噳(y墨ng)鐢ㄥ牬鏅�銆�
銆�銆�鍒嗛牷鍣�锛氶�氶亷閬╃暥(d膩ng)瑷�(sh猫)缃�鍙�浠ュ皣楂橀牷淇¤櫉鍒嗘垚杓冧綆闋荤巼鐨勪俊铏�銆�
銆�銆�瀹氭檪鍣�锛氱��(ji茅)鍚堝叾浠栭倧杓�鍏冧欢鍙�浠ユ��(g貌u)寤哄畾鏅傛垨寤舵檪闆昏矾銆�
銆�銆�搴忓垪鐧�(f膩)鐢熷櫒锛氱敤浜庣敓鎴愮壒瀹氱殑浜岄��(j矛n)鍒跺簭鍒�锛岄仼鐢ㄤ簬閫氫俊绯荤当(t菕ng)涓�鐨勭法纰兼垨瑙ｇ⒓閬庣▼銆�