鍨嬭櫉锛歍CA9554
銆�銆�鍒堕�犲晢锛氬痉宸炲剙鍣�锛圱I锛�
銆�銆�灏佽�濓細TSSOP-16, SOIC-16
銆�銆�宸ヤ綔闆诲�擄��1.65V 鑷� 5.5V
銆�銆�I2C 绺界窔閫熷害锛氭��(bi膩o)婧�(zh菙n)妯″紡锛�100kHz锛�锛屽揩閫熸ā寮忥紙400kHz锛�
銆�銆�杓稿叆/杓稿嚭绔�鍙ｆ��(sh霉)閲忥細8鍊�
銆�銆�宸ヤ綔婧�搴﹁寖鍦嶏��-40掳C 鑷� +125掳C
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪�� 80渭A
銆�銆�椹�(q奴)鍕曡兘鍔涳細姣忓紩鑵虫渶澶ц几鍑�20mA
銆�銆�鍦板潃閬告搰锛氶�氶亷ADDR寮曡叧瑷�(sh猫)缃�锛屾渶澶氬彲閫ｆ帴8鍊嬭ō(sh猫)鍌欏埌鍚屼竴I2C绺界窔涓�

TCA9554鏄�涓�娆鹃潪甯稿�︾敤鐨凣PIO鎿村睍鍣�锛岃兘澶犵偤宓屽叆寮忕郴绲�(t菕ng)鎻愪緵椤嶅�栫殑鏁�(sh霉)瀛楄几鍏�/杓稿嚭鍔熻兘銆�
銆�銆�1. 鏀�鎸佹��(bi膩o)婧�(zh菙n)鍜屽揩閫熸ā寮廔2C閫氫俊鍗�(xi茅)璀�锛屽吋瀹瑰ぇ澶氭暩(sh霉)涓绘祦寰�鎺у埗鍣ㄥ拰铏曠悊鍣�銆�
銆�銆�2. 鎻愪緵8鍊嬪彲閰嶇疆鐨勮几鍏�/杓稿嚭绔�鍙�锛屽彲浠ラ潏娲诲湴瑷�(sh猫)缃�鐐鸿几鍏ユ垨杓稿嚭妯″��銆�
銆�銆�3. 鎿佹湁寤ｆ硾鐨勯浕澹撴搷浣滆寖鍦嶏紙1.65V鑷�5.5V锛�锛岄仼鐢ㄤ簬澶氱ó鎳�(y墨ng)鐢ㄥ牬鏅�銆�
銆�銆�4. 鍏�(n猫i)缃�涓婇浕寰�(f霉)浣嶅姛鑳斤紝鍦ㄤ笂闆绘檪榛樿獚(r猫n)鎵�鏈夌��鍙ｈō(sh猫)缃�鐐洪珮闃绘��(t脿i)杓稿叆銆�
銆�銆�5. 鏀�鎸佺‖浠跺湴鍧�閬告搰锛岄�氶亷涓夊�嬪湴鍧�寮曡叧鍙�浠ヨ��(sh猫)瀹氬�氶��8鍊嬩笉鍚岀殑寰炶ō(sh猫)鍌欏湴鍧�锛屾柟渚垮湪鍚屼竴鍊婭2C绺界窔涓婃摯灞曟洿澶氱殑GPIO绔�鍙�銆�
銆�銆�6. 瓒呬綆鍔熻�楄ō(sh猫)瑷堬紝鍏稿瀷闈滄厠(t脿i)闆绘祦鍍呯偤80渭A锛岄仼鍚堝皪鍔熻�楁晱鎰熺殑渚挎敎寮忚ō(sh猫)鍌�銆�
銆�銆�7. 宸ユキ(y猫)绱氬伐浣滄韩搴﹁寖鍦嶏紙-40掳C鑷�+125掳C锛�锛岀⒑淇濆湪妤电��鐠�(hu谩n)澧冧笅鐨勭┅(w臎n)瀹氶亱琛屻��

TCA9554鍥犲叾寮峰ぇ鐨勫姛鑳藉拰鏄撶敤鎬э紝琚�寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó闆诲瓙瑷�(sh猫)鍌欎腑銆�
銆�銆�1. 宓屽叆寮忕郴绲�(t菕ng)锛�
銆�銆� - 鍦ㄨ硣婧愭湁闄愮殑寰�鎺у埗鍣ㄤ腑鎿村睍GPIO绔�鍙�锛岀敤浜庢帶鍒禠ED銆佹寜閸垫垨鍏朵粬澶栬ō(sh猫)銆�
銆�銆�2. 宸ユキ(y猫)鑷�鍕曞寲锛�
銆�銆� - 浣滅偤宸ユキ(y猫)鎺у埗鍣ㄧ殑澶栧湇鎿村睍妯″��锛岀敤浜庨噰闆嗛枊闂�(gu膩n)鐙�鎱�(t脿i)鎴栨帶鍒剁辜闆诲櫒銆�
銆�銆�3. 娑堣不椤為浕瀛愮敘(ch菐n)鍝侊細
銆�銆� - 鐢ㄤ簬瀹剁敤闆诲櫒銆佹櫤鑳介煶绠辩瓑闇�瑕侀�嶅�朓/O绔�鍙ｇ殑鐢�(ch菐n)鍝併��
銆�銆�4. 鐗╄伅(li谩n)缍�(w菐ng)锛圛oT锛夎ō(sh猫)鍌欙細
銆�銆� - 鍦ㄥ偝鎰熷櫒绡�(ji茅)榛炰腑鎿村睍绔�鍙�锛岀敤浜庨�ｆ帴澶氬�嬪偝鎰熷櫒鎴栧煼(zh铆)琛屽櫒銆�
銆�銆�5. 閫氫俊瑷�(sh猫)鍌欙細
銆�銆� - 鍦ㄨ矾鐢卞櫒銆佺恫(w菐ng)闂�(gu膩n)绛夎ō(sh猫)鍌欎腑鎿村睍?f脿n)椤烞(t脿i)鎸囩ず鐕堟垨鎸夐垥杓稿叆銆�
銆�銆�6. 姹借粖闆诲瓙锛�
銆�銆� - 鐢ㄤ簬杌婂収(n猫i)鎺у埗闈㈡澘銆佸剙琛ㄧ洡绛夊牬鍚�锛屾摯灞曢枊闂�(gu膩n)鍜屾寚绀虹噲鐨勬帶鍒剁��鍙�銆�

PCA9554, MCP23008, PCA9535