鏅傞枔锛�2025/3/20 17:21:20
闁辫畝锛�112
PCF8574鏄竴娆鹃�氱敤鐨処2C绺界窔8浣嶇鍙ｆ摯灞曞櫒锛屽父鐢ㄤ簬澧炲姞寰帶鍒跺櫒鎴栧祵鍏ュ紡绯荤当(t菕ng)鐨凣PIO璩囨簮銆傝┎鑺墖鑳藉閫氶亷I2C鎺ュ彛閫ｆ帴鍒颁富鎺у埗鍣�锛屽苟鎻愪緵椤嶅鐨勮几鍏�/杓稿嚭绔彛浠ユ帶鍒跺閮ㄨō鍌欍��
銆�銆�PCF8574鐨勪富瑕佸姛鑳芥槸鐐虹郴绲�(t菕ng)瑷▓鑰呮彁渚涗竴绋啊鍠笖浣庢垚鏈殑鏂瑰紡渚嗘摯灞旼PIO绔彛鏁�(sh霉)閲�锛岃�岀劇闇�澧炲姞鏇村寰╅洔搴︺�傚畠鏀寔妯欐簴妯″紡锛�100 kHz锛夊拰蹇�熸ā寮忥紙400 kHz锛夌殑I2C閫氫俊鍗�(xi茅)璀�銆�
宸ヤ綔闆诲锛�2.5V鑷�6.0V
銆�銆�杓稿叆/杓稿嚭绔彛鏁�(sh霉)锛�
銆�銆�I2C鍦板潃鑼冨湇锛�0x20鑷�0x27
銆�銆�鏈�澶х鍙ｉ﹨鍕曡兘鍔涳細25mA锛堟瘡鍊嬪紩鑵筹級
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C鑷�+85掳C
銆�銆�灏佽椤炲瀷锛歋O-16, TSSOP-16
1. 鎻愪緵8鍊嬪彲閰嶇疆鐨勯洐鍚戠鍙�锛屾棦鍙互鐢ㄤ綔杓稿叆涔熷彲浠ョ敤浣滆几鍑�銆�
銆�銆�2. 鏀寔I2C鍏煎鐨勪簩绶氬埗涓茶鎺ュ彛锛屼究浜庤垏涓绘帶鑺墖閫ｆ帴銆�
銆�銆�3. 鍏ч儴涓婃媺闆婚樆浣胯几鍏ョ鍙ｅ湪鏈�ｆ帴鏅傚憟鐝�(xi脿n)楂橀浕骞崇媭鎱�(t脿i)銆�
銆�銆�4. 鍙�氶亷纭欢寮曡叧瑷疆澶氶仈8鍊嬩笉鍚岀殑I2C寰炲湴鍧�锛屽厑瑷卞鍊嬪櫒浠跺叡瀛樹簬鍚屼竴I2C绺界窔涓�銆�
銆�銆�5. 绔彛鍏峰倷杓冮珮鐨勯﹨鍕曡兘鍔涳紝閬╁悎鐩存帴椹呭嫊LED鎴栧叾浠栦綆鍔熻�楄ō鍌�銆�
銆�銆�6. 鑺墖鏀寔澶氱ó宸ヤ綔闆诲鑼冨湇锛岄仼鎳変笉鍚屾噳鐢ㄥ牬鏅渶姹�銆�
1. 宓屽叆寮忕郴绲�(t菕ng)涓寜閸垫巸鎻�銆丩ED椹呭嫊绛夊姛鑳芥ā濉�銆�
銆�銆�2. 宸ユキ(y猫)鎺у埗闋樺煙涓殑鍌虫劅鍣ㄤ俊铏熼噰闆嗗強瑷倷鐙�鎱�(t脿i)鐩�(ji膩n)鎺с��
銆�銆�3. 娑堣不闆诲瓙鐢㈠搧鐨勭敤鎴剁晫闈㈢鐞�锛屽闁嬮棞妾㈡脯鍜屾寚绀虹噲鎺у埗銆�
銆�銆�4. 瀹剁敤闆诲櫒瑷▓涓殑澶氳矾淇¤櫉杓稿叆/杓稿嚭绠＄悊銆�
銆�銆�5. 姗熷櫒浜烘妧琛撲腑浣滅偤杓斿姪绔彛鎿村睍鍣ㄤ締鎺у埗鍩�(zh铆)琛屾妲嬫垨鍌虫劅鍣ㄩ櫍鍒�銆�
PCA9554, MCP23008
