SN74ALS245A 鏅傞枔锛�2025/5/6 16:25:27 闁辫畝锛�29

SN74ALS245A 鏄竴绋珮閫� CMOS 鍏綅闆欏悜绺界窔鏀剁櫦(f膩)鍣紝閲囩敤鍏堥€茬殑 Schottky TTL 鎶€琛�(sh霉)鍒堕€�銆傝┎鍣ㄤ欢鑳藉鍦ㄥ叐鍊嬫柟鍚戜笂鍚屾檪鍌宠几鏁�(sh霉)鎿�(j霉)锛屽叿鏈変綆鍔熻€楀拰楂橀枊闂�(gu膩n)閫熷害鐨勭壒榛�銆傚畠寤ｆ硾鐢ㄤ簬瑷堢畻姗熴€侀€氫俊瑷�(sh猫)鍌欏拰鍏朵粬闇€瑕佹暩(sh霉)鎿�(j霉)绺界窔鎿村睍鐨勭郴绲�(t菕ng)涓€�
銆€銆€瑭茶姱鐗囧寘鍚叓绲勭崹绔嬬殑鏁�(sh霉)鎿�(j霉)閫氶亾锛屾瘡鍊嬮€氶亾閮藉彲浠ラ€氶亷鏂瑰悜鎺у埗寮曡叧锛圖IR锛変締姹哄畾鏁�(sh霉)鎿�(j霉)娴佸悜銆傛澶栵紝閭勬湁涓€鍊嬭几鍑轰娇鑳藉紩鑵筹紙OE锛�锛岀敤浜庡暉鐢ㄦ垨绂佺敤鏁�(sh霉)鎿�(j霉)鍌宠几銆�

鍙冩暩(sh霉)

閭忚集椤炲瀷锛氶洐鍚戠附绶氭敹鐧�(f膩)鍣�
銆€銆€閫氶亾鏁�(sh霉)閲忥細8
銆€銆€闆绘簮闆诲(VCC)锛�4.5V 鑷� 5.5V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-55掳C 鑷� +125掳C
銆€銆€灏佽褰㈠紡锛欴IP-20, PDIP-20, SOIC-20
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氭渶澶� 13ns (鍏稿瀷鍊�)
銆€銆€杓稿叆闆绘祦(IIL)锛�-0.4mA
銆€銆€杓稿嚭闆绘祦(IOH)锛�-8mA
銆€銆€闈滄厠(t脿i)闆绘祦(ICC)锛氭渶澶� 50mA

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SN74ALS245A 鐨勪富瑕佺壒鎬у寘鎷細
銆€銆€1. 闆欏悜鏁�(sh霉)鎿�(j霉)鍌宠几鍔熻兘锛屽厑瑷遍潏娲荤殑淇¤櫉娴佸嫊銆�
銆€銆€2. 鏂瑰悜鎺у埗寮曡叧鏀寔閬告搰鏁�(sh霉)鎿�(j霉)寰� A 鍒� B 鎴栧緸 B 鍒� A 鐨勫偝杓�銆�
銆€銆€3. 杓稿嚭浣胯兘鍔熻兘鍙互鍦ㄤ笉闇€瑕佸偝杓告檪灏囨墍鏈夎几鍑虹疆浜庨珮闃绘厠(t脿i)銆�
銆€銆€4. 鍏ㄩ儴閫氶亾鍧囧叿鏈変笁鎱�(t脿i)杓稿嚭鍔熻兘锛岄仼鍚堝京(f霉)闆滅殑澶氳矾寰�(f霉)鐢ㄧ郴绲�(t菕ng)銆�
銆€銆€5. 楂橀€熼亱琛屾€ц兘锛屾豢瓒崇従(xi脿n)浠ｉ浕瀛愮郴绲�(t菕ng)鐨勫鏅傞渶姹傘€�
銆€銆€6. 宸ヤ綔闆诲鑼冨湇杓冨锛岄仼鐢ㄤ簬澶氱ó闆绘簮鐠�(hu谩n)澧�銆�
銆€銆€7. 寮峰ぇ鐨勬姉骞叉摼鑳藉姏锛岀⒑淇濆湪鎯″姡鐠�(hu谩n)澧冧笅鐨勭┅(w臎n)瀹氶亱琛�銆�

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SN74ALS245A 涓昏鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆€銆€1. 瑷堢畻姗熺郴绲�(t菕ng)涓殑鏁�(sh霉)鎿�(j霉)绺界窔鎿村睍銆�
銆€銆€2. 澶氳檿鐞嗗櫒鏋舵(g貌u)涓殑閫氫俊鎺ュ彛銆�
銆€銆€3. 瀛樺劜鍣ㄨ垏澶栧湇瑷�(sh猫)鍌欎箣闁撶殑鏁�(sh霉)鎿�(j霉)浜ゆ彌銆�
銆€銆€4. 鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)涓殑淇¤櫉绶╂矕銆�
銆€銆€5. 閫氫俊瑷�(sh猫)鍌欎腑鐨勬暩(sh霉)鎿�(j霉)娴佹帶鍒�銆�
銆€銆€6. 宸ユキ(y猫)鑷嫊鍖栨帶鍒剁郴绲�(t菕ng)涓殑淇¤櫉铏曠悊銆�
銆€銆€7. 缍�(w菐ng)绲�(lu貌)璺敱鍣ㄥ拰浜ゆ彌姗熶腑鐨勬暩(sh霉)鎿�(j霉)璺敱鍔熻兘銆�