鏅傞枔锛�2025/5/10 18:11:38
闁辫畝锛�19
SN74LS138DR 鏄竴绋綆鍔熻�楃殑鏂藉瘑鐗硅Ц鐧�(f膩)鍣ㄧ郴鍒椾笁绶�-鍏窔璀⒓鍣�/瑙ｇ⒓鍣ㄣ�傚畠閫氬父鐢ㄤ簬灏囦笁鍊嬩簩閫插埗杓稿叆淇¤櫉杞夋彌鐐哄叓鍊嬭几鍑轰俊铏熶腑鐨勪竴鍊�锛屽緸鑰屽鐝惧皪鍦板潃鎴栨暩鎿氱窔鐨勯伕鎿囧拰鎺у埗銆傝┎鍣ㄤ欢灞簬 74 绯诲垪閭忚集鑺墖锛岄噰鐢ㄧ殑鏄� LS (Low-power Schottky) 宸ヨ棟鍒堕��锛屽叿鏈変綆鍔熻�椼�侀珮闁嬮棞閫熷害鐨勭壒榛炪��
銆�銆�鍏朵富瑕佸姛鑳芥槸閫氶亷鎺ユ敹涓夊�嬭几鍏ヤ俊铏� A銆丅 鍜� C锛屼互鍙婁笁鍊嬩娇鑳界 G1銆丟2A 鍜� G2B 鐨勭祫鍚堜締閬告搰鍏朵腑涓�鍊嬭几鍑烘縺娲伙紙浣庨浕骞虫湁鏁堬級銆傛湭琚伕涓殑鍏朵粬杓稿嚭鍓囦繚鎸侀珮闆诲钩銆�
闆绘簮闆诲锛�4.75V 鑷� 5.25V
銆�銆�宸ヤ綔婧害鑼冨湇锛�0掳C 鑷� 70掳C
銆�銆�杓稿嚭闆绘祦锛氭渶澶� -20mA锛堜綆闆诲钩锛�
銆�銆�杓稿叆闆绘祦锛氭渶澶� 卤1mA
銆�銆�鍌虫挱寤堕伈鏅傞枔锛氭渶澶� 26ns
銆�銆�灏佽椤炲瀷锛欴IP 鎴� SOIC
SN74LS138DR 鍏锋湁浠ヤ笅鐗归粸锛�
銆�銆�1. 鎻愪緵浜嗕笁绶氬埌鍏窔鐨勮纰煎姛鑳�锛岄仼鍚堢敤浣滃瓨鍎插櫒閬稿潃鎴栦竴鑸殑鏁告摎璺敱鎳夌敤銆�
銆�銆�2. 闆嗘垚鐨勪娇鑳界鎻愪緵浜嗛澶栫殑闈堟椿鎬�锛岃兘澶犳柟渚垮湴鑸囨洿寰╅洔鐨勭郴绲�(t菕ng)闆嗘垚銆�
銆�銆�3. 浣跨敤 LS 鎶�琛撴寤�锛岀⒑淇濊純浣庣殑鍔熻�楀拰杓冮珮鐨勯亱琛岄�熷害銆�
銆�銆�4. 鎵�鏈夎几鍑哄潎鐐轰綆闆诲钩鏈夋晥锛岀啊鍖栦簡鑸囧叾浠栭倧杓浕璺殑閫ｆ帴瑷▓銆�
銆�銆�5. 瀹屽叏绗﹀悎 JEDEC 妯欐簴锛屼繚璀変簡鑸囧叾浠栧悓绯诲垪鑺墖鐨勫吋瀹规��銆�
SN74LS138DR 寤ｆ硾鎳夌敤浜庡悇绋暩瀛楃郴绲�(t菕ng)涓�锛屼富瑕佺敤浜庨渶瑕侀�茶鍦板潃璀⒓銆佹暩鎿氶伕鎿囨垨淇¤櫉鍒嗛厤鐨勫牬鍚堛�傚吀鍨嬬殑鎳夌敤鍖呮嫭锛�
銆�銆�1. 瀛樺劜鍣ㄧ郴绲�(t菕ng)鐨勫湴鍧�璀⒓锛屼緥濡傚湪寰檿鐞嗗櫒绯荤当(t菕ng)涓伕鎿囦笉鍚岀殑瀛樺劜鑺墖銆�
銆�銆�2. 澶氳矾寰╃敤鍜岃В寰╃敤鎳夌敤銆�
銆�銆�3. 鎺у埗閭忚集闆昏矾涓殑淇¤櫉鍒囨彌鍜岃矾寰戠鐞�銆�
銆�銆�4. 鍚勭ó宸ユキ(y猫)鎺у埗绯荤当(t菕ng)涓殑澶栧湇瑷倷鎺ュ彛绠＄悊銆�
銆�銆�5. 鏁告摎绺界窔鎿村睍鏅傜敤浜庡璺暩鎿氱殑閬告搰銆�
SN74S138N, SN74HC138D, CD4514BE
