74HC154鏄竴绋珮閫�CMOS閭忚集鍣ㄤ欢锛屽彲鐢ㄤ綔4-16璀⒓鍣�/寰╃敤鍣�銆傚畠鍏锋湁蹇�熼熆鎳夋檪闁撳拰浣庡姛鑰�锛岄仼鐢ㄤ簬宸ユキ(y猫)鎺у埗绯荤当(t菕ng)銆侀煶闋�/瑕栭牷瑷倷銆佹脯閲忓剙鍣ㄧ瓑鎳夌敤闋樺煙銆�
74HC154鏄竴鍊�4-16璀⒓鍣�/寰╃敤鍣紝鍙互灏�4鍊嬭几鍏ヤ俊铏熺法纰兼垚16鍊嬭几鍑轰俊铏熶箣涓�锛屼互瀵︾従澶氳矾寰╃敤绛夊姛鑳�銆� 鍏剁壒榛炲寘鎷細
楂橀�熼熆鎳夋檪闁擄細鍌宠几寤堕伈鐐�10 ns
浣庡姛鑰楋細Typ. DC闆绘祦鐐�8 mA @ VCC=5V
楂樺櫔鑱叉姂鍒舵瘮锛歍YP (Yn) = 22dB @ fIN = 0.3fCLK
74HC154鍏辨湁24鍊嬪紩鑵�锛屽叾寮曡叧瀹氱京濡備笅锛�
| 寮曡叧鏁� | 鍚嶇ū | 鎻忚堪 |
|---|---|---|
| 1 | GND | 鍦� |
| 2-5 | A0-A3 | 杓稿叆淇¤櫉绶� |
| 6 | ~E1 | 浣胯兘绔�1锛岀暥鐐轰綆闆诲钩(0)鏅傛縺娲诲櫒浠� |
| 7-10 | Y0-Y3 | 杓稿嚭淇¤櫉绶� |
| 11 | G2A | 绲勯伕鎿囪几鍏ョA锛屾帴鍦� |
| 12 | G2B | 绲勯伕鎿囪几鍏ョB锛屾帴VCC |
| 13 | VCC | 闆绘簮姝ｆサ |
| 14-17 | A4-A7 | 杓稿叆淇¤櫉绶� |
| 18 | ~E2 | 浣胯兘绔�2锛岀暥鐐轰綆闆诲钩(0)鏅傛縺娲诲櫒浠� |
| 19-22 | Y4-Y7 | 杓稿嚭淇¤櫉绶� |
| 23 | G1 | 绲勯伕鎿囪几鍏ョC锛屾帴鍦� |
| 24 | GND | 鍦� |
浠ヤ笅鏄�74HC154鐨勫姛鑳界湡鍊艰〃銆� 鍏朵腑锛孌琛ㄧず杓稿嚭琚縺娲荤殑鏁告摎绶�锛孉0-A7琛ㄧず杓稿叆淇¤櫉锛� ~E1鍜寏E2鏄皪鎳夌殑浣胯兘绔��
| A0-A7 | ~E1 | ~E2 | D |
|---|---|---|---|
| X X X X X X L L Y0 | |||
| X X X X X X L H Y1 |
缍韩闆诲瓙閫氾紝闆诲瓙鐭ヨ瓨锛屼竴鏌ョ櫨閫�锛�
宸叉敹閷勮姊�153979鍊�
