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模擬電梯系統(tǒng)試題(留存版)

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【正文】 , LED2, LED4, LED5, LED7, LED8, LED10, LED11, LED13, LED14, LED16, LED17, LED19, LED20, LED22, LED23, LED25, LED27, LED28, LED29, LED30, LED31, LED32, LED3312LED※(貼片)LED08059LED3, LED6, LED9, LED12, LED15, LED18, LED21, LED24,LED26132位接線端子CON21P114三極管※(貼片)90145Q3, Q4, Q5, Q9, Q1015三極管※(貼片)85504Q6, Q7, Q8, Q11160805電阻※(貼片)10k9R3, R4, R5, R7, R8, R9, R10, R11,R14,R34,R35170805電阻※(貼片)510R40R6, R12, R13,R15, R16, R17,R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, R32, R33,R36, R37, R38, R39, R40, R41, R42, R43, R44,R47, R48, R49,R56, R57, R58, R59, R60, R61, R62,180805電阻※(貼片)1k9R18,R46,R50,R51,R52,R53,R54,R55,R63190805電阻※(貼片)200R1R4520串口臥插串口母座1RS121自鎖開關(guān)6*61S122紅外接收(插件) 紅外接收1T_123集成塊(插件)STC89C521U124集成塊(插件)L293D1U225集成塊※(貼片)74AC5731REF!26集成塊※(貼片)MAX2321U427集成塊(插件)L7805CV1U528晶振(插件)16M1Y129U1座芯片座1DIP16座30U2座芯片座1DIP40座31散熱片 1 注:在表格中“名稱”旁邊有※符號的元器件,表示該元器件為貼片元器件四、主要元件功能介紹L293電機(jī)驅(qū)動(dòng)芯片功能: 五、D鎖存器74HC573功能: 74HC573特點(diǎn): 數(shù)碼管DS1顯示當(dāng)前電梯狀態(tài),有停止,上行,下行三種狀態(tài),分別如下圖所示:數(shù)碼管DS2顯示當(dāng)前樓
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