鏅傞枔锛�2025/4/25 18:25:27
闁辫畝锛�34
74HC238DB鏄竴娆鹃珮鎬ц兘鐨�3-8绶氳纰煎櫒鑺墖锛屽爆浜�74HC绯诲垪CMOS閭忚集鍣ㄤ欢銆傝┎鑺墖鑳藉鍦ㄤ綆闆诲鍜岄珮闁嬮棞(gu膩n)閫熷害涓嬪伐浣�锛屽叿鏈夎純浣庣殑闈滄厠(t脿i)闆绘祦鍜岃純楂樼殑鍣伈瀹归檺锛岄潪甯搁仼鍚堢敤浜庢暩(sh霉)瀛楅浕璺ō瑷堜腑鐨勫湴鍧�瑙ｇ⒓銆佹暩(sh霉)鎿�(j霉)鍒嗛厤浠ュ強鍏朵粬澶氳矾閬告搰鎳夌敤銆�
銆�銆�74HC238DB閫氶亷涓夊�嬭几鍏ョ锛圓銆丅銆丆锛夌敘(ch菐n)鐢熷叓鍊嬭几鍑猴紙Y0鑷砓7锛�锛屽苟鍏峰倷鍏╁�嬩娇鑳界锛圙1銆丟2A/G2B锛�銆傜暥浣胯兘绔檿浜庢纰虹媭鎱�(t脿i)鏅傦紝杓稿叆淇¤櫉琚纰兼垚灏嶆噳鐨勫柈鍊嬫湁鏁堣几鍑�銆�
渚涢浕闆诲锛�2V~6V
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C~+85掳C
銆�銆�鍌虫挱寤堕伈鏅傞枔锛氭渶澶�12ns锛堝湪Vcc=4.5V~5.5V涓嬶級
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪��1渭A锛堝湪Vcc=4.5V~5.5V涓嬶級
銆�銆�杓稿嚭椹�(q奴)鍕曡兘鍔涳細卤10mA
銆�銆�杓稿叆闆诲钩鍏煎TTL妯欐簴
74HC238DB閲囩敤浜嗗厛閫茬殑CMOS鎶�琛�(sh霉)鍒堕�狅紝鍏锋湁浠ヤ笅涓昏鐗规�э細
銆�銆�1. 宸ヤ綔闆诲鑼冨湇瀵紝鑳藉閬╂噳涓嶅悓鐨勯浕婧愮郴绲�(t菕ng)銆�
銆�銆�2. 浣庡姛鑰楄ō瑷�锛岄潨鎱�(t脿i)闆绘祦妤靛皬锛岄仼鍚堜究鏀滃紡瑷倷銆�
銆�銆�3. 楂橀�熸�ц兘锛屽偝鎾欢閬叉檪闁撶煭锛屾豢瓒崇従(xi脿n)浠ｉ珮閫熸暩(sh霉)瀛楅浕璺渶姹�銆�
銆�銆�4. 杓稿叆寮曡叧鑸嘥TL闆诲钩鍏煎锛屼究浜庤垏鍏朵粬閭忚集鍣ㄤ欢浜掕伅(li谩n)銆�
銆�銆�5. 楂樺櫔鑱插闄愮⒑淇濅簡鍙潬鎬у拰绌�(w臎n)瀹氭��銆�
銆�銆�6. 灏忓瀷灏佽锛岀瘈(ji茅)鐪丳CB绌洪枔锛屾敮鎸佽〃闈㈣布瑁濆伐钘濓紙SMD锛�銆�
74HC238DB寤ｆ硾鎳夌敤浜庡悇椤炴暩(sh霉)瀛楃郴绲�(t菕ng)涓紝鍖呮嫭浣嗕笉闄愪簬锛�
銆�銆�1. 鍦板潃瑙ｇ⒓鍣�锛屽湪寰檿鐞嗗櫒绯荤当(t菕ng)涓皣鍦板潃绺界窔淇¤櫉杞�(zhu菐n)鎻涚偤鐗瑰畾鐨勭墖閬镐俊铏�銆�
銆�銆�2. 鏁�(sh霉)鎿�(j霉)鍒嗛厤鍣紝鐢ㄤ簬灏囧柈涓�鏁�(sh霉)鎿�(j霉)婧愬垎閰嶅埌澶氬�嬬洰妯�銆�
銆�銆�3. 澶氳矾寰╃敤鎺у埗锛屽鐝�(xi脿n)灏嶅鍊嬪瑷殑閬告搰鑸囩鐞嗐��
銆�銆�4. 鍚勭ó娑堣不椤為浕瀛愮敘(ch菐n)鍝�銆佸伐妤�(y猫)鎺у埗瑷倷浠ュ強閫氫俊绯荤当(t菕ng)涓殑閭忚集闆昏矾瑷▓銆�
銆�銆�鍏堕珮鏁堟�ц兘鍜岄潏娲绘�т娇寰楀畠鎴愮偤鐪惧宸ョ▼甯湪瑷▓寰╅洔鏁�(sh霉)瀛楅浕璺檪鐨勭悊鎯抽伕鎿�銆�
74HCT238, SN74HC238, MC14553B
