PCA9545A 鏅�(sh铆)闁擄細2025/5/6 13:43:22 闁辫畝锛�22

PCA9545A 鏄竴娆剧敱 NXP锛堟仼鏅烘郸锛夋帹鍑虹殑 I2C-bus 鍥涢€氶亾 I2C 闁嬮棞(gu膩n)锛屽叿鏈変綆灏�(d菐o)閫氶浕闃荤壒鎬с€傝┎鑺墖鍏佽ū涓绘(j墨)鑸囧鍊�(g猫)寰炶ō(sh猫)鍌欓€�(j矛n)琛岄€氫俊锛屽苟涓斿彲浠ユ湁鏁堢鐞嗙附绶氫笂鐨勫湴鍧€娌栫獊鍟忛銆侾CA9545A 鎻愪緵浜嗗洓鍊�(g猫)鐛�(d煤)绔嬬殑 I2C 閫氶亾锛屾瘡鍊�(g猫)閫氶亾閮藉彲浠ュ柈鐛�(d煤)鍟熺敤鎴栫鐢�銆傞€氶亷閬告搰涓嶅悓鐨勫瓙鍦板潃锛岀敤鎴跺彲浠ユ帶鍒舵瘡鍊�(g猫)閫氶亾鐨勭媭鎱�(t脿i)銆�
銆€銆€PCA9545A 鐨勮ō(sh猫)瑷�(j矛)浣垮緱澶氬€�(g猫) I2C 瑷�(sh猫)鍌欏彲浠ラ€氶亷鍠€�(g猫)涓绘帶鍒跺櫒瑷晱锛屽悓鏅�(sh铆)閬垮厤淇¤櫉(h脿o)骞叉摼鍜屽湴鍧€娌栫獊銆傚叾鍏稿瀷鎳�(y墨ng)鐢ㄥ牬鏅寘鎷渶瑕佹摯(ku貌)灞� I2C 绺界窔瑷�(sh猫)鍌欐暩(sh霉)閲忕殑绯荤当(t菕ng)涓�锛屼緥濡傚祵鍏ュ紡宸ユキ(y猫)鎺у埗绯荤当(t菕ng)銆佹秷璨�(f猫i)椤為浕瀛愮敘(ch菐n)鍝佸拰姹借粖闆诲瓙绛夈€�

鍙冩暩(sh霉)

鍨嬭櫉(h脿o)锛歅CA9545A
銆€銆€鍒堕€犲晢锛歂XP
銆€銆€VDD 宸ヤ綔闆诲鑼冨湇锛�1.65V 鑷� 5.5V
銆€銆€I/O 闆诲鑼冨湇锛�1.65V 鑷� 5.5V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆€銆€灏佽椤炲瀷锛歍SSOP
銆€銆€鏁�(sh霉)鎿�(j霉)閫熺巼锛氭敮鎸佹(bi膩o)婧�(zh菙n)妯″紡 (100 kHz)銆佸揩閫熸ā寮� (400 kHz) 鍜屽揩閫熸ā寮�+ (1 MHz)
銆€銆€閫氶亾鏁�(sh霉)锛�
銆€銆€灏�(d菐o)閫氶浕闃伙細鏈€澶� 15 惟
銆€銆€I2C 鍦板潃閬告搰锛氶€氶亷 A0-A2 寮曡叧閰嶇疆

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1. 鏀寔楂橀仈(d谩) 1 MHz 鐨� I2C 蹇€熸ā寮�+
銆€銆€2. 姣忓€�(g猫)閫氶亾鍙柈鐛�(d煤)闁嬪暉鎴栭棞(gu膩n)闁�锛屼究浜庡嫊(d貌ng)鎱�(t脿i)鎺у埗
銆€銆€3. 鍏锋湁杓冧綆鐨勫皫(d菐o)閫氶浕闃伙紝纰轰繚淇¤櫉(h脿o)璩�(zh矛)閲�
銆€銆€4. 鍏�(n猫i)缃煭璺繚璀�(h霉)鍔熻兘锛屾彁鍗囩郴绲�(t菕ng)鍙潬鎬�
銆€銆€5. 鏀寔瀵伐浣滈浕澹撹寖鍦嶏紝閬╃敤浜庡绋浕婧愮挵(hu谩n)澧�
銆€銆€6. 楂樻韩宸ヤ綔鑳藉姏锛岄仼鍚堝伐妤�(y猫)鍜屾苯杌婄礆(j铆)鎳�(y墨ng)鐢�
銆€銆€7. 灏忓瀷 TSSOP 灏佽锛岀瘈(ji茅)鐪� PCB 绌洪枔
銆€銆€8. 鍙€氶亷纭欢寮曡叧瑷�(sh猫)缃閬�(d谩) 8 鍊�(g猫)鐛�(d煤)绔� I2C 鍦板潃
銆€銆€9. 鑳藉闃叉鍥犲鍊�(g猫) I2C 瑷�(sh猫)鍌欏紩璧风殑鍦板潃娌栫獊鍟忛
銆€銆€10. 鎻愪緵澧炲挤(qi谩ng)鐨勬姉闆荤骞叉摼鑳藉姏锛岀⒑淇濈┅(w臎n)瀹氶亱(y霉n)琛�

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PCA9545A 涓昏鎳�(y墨ng)鐢ㄤ簬闇€瑕佹摯(ku貌)灞� I2C 绺界窔鐨勫牬鏅腑锛屼緥濡傦細
銆€銆€1. 宓屽叆寮忔帶鍒剁郴绲�(t菕ng)涓殑澶氬偝鎰熷櫒鎺ュ彛绠＄悊
銆€銆€2. 宸ユキ(y猫)鑷嫊(d貌ng)鍖栬ō(sh猫)鍌欎腑鐨勬ā濉婂寲瑷�(sh猫)瑷�(j矛)
銆€銆€3. 娑堣不(f猫i)椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勫椤ず灞忔垨澶氭寜閸电煩闄ｆ帶鍒�
銆€銆€4. 姹借粖闆诲瓙绯荤当(t菕ng)涓殑澶氭ā濉婇€氫俊绠＄悊
銆€銆€5. 鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)涓殑澶氳矾鍌虫劅鍣ㄦ帴鍏�
銆€銆€6. 閱�(y墨)鐧傝ō(sh猫)鍌欎腑鐨勫閫氶亾淇¤櫉(h脿o)铏曠悊
銆€銆€7. 鐗╄伅(li谩n)缍�(w菐ng)缍�(w菐ng)闂�(gu膩n)瑷�(sh猫)鍌欎腑鐨勫鍦嶈ō(sh猫)鍌欓€ｆ帴绠＄悊
銆€銆€8. 绉戝(xu茅)鍎€鍣ㄤ腑鐨勫京(f霉)闆滅附绶氭灦妲�(g貌u)瀵�(sh铆)鐝�(xi脿n)