《單片機(jī)應(yīng)用技術(shù)基礎(chǔ)》課件-04 51單片機(jī)的外形與引腳_第1頁(yè)
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51單片機(jī)的外形封裝雙列直插的DIP40貼片PLCC44貼片QFP4440只引腳雙列封裝（直插DIP）雙列直插式，是一種傳統(tǒng)的封裝形式，管腳間距大，占用電路板面積大，便于自制電路板，方便維修。適用學(xué)校，培訓(xùn)機(jī)構(gòu)，但是封裝體積大，電路板制作成本高，商品里應(yīng)用較少。40只引腳雙列封裝（直插DIP）44引腳方形封裝方式(貼片PLCC)PLCC為方形貼片形式的，可以直接應(yīng)用在電路板上，不必鉆孔，研發(fā)實(shí)驗(yàn)教學(xué)是可以利用插座，縮短開(kāi)發(fā)生產(chǎn)周期。44引腳方形封裝方式(貼片PLCC)>>>>44引腳方形封裝方式(貼片PQFP)所占面積更小，成本低，常用于管腳比較多的單片機(jī)芯片。44引腳方形封裝方式(貼片PQFP)>>>>8051單片機(jī)的信號(hào)引腳及功能GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCEAALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51GNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516171819204038393736353433323130292827262524232221AT89S51EAEAGNDRSTXTAL1XTAL2P1.1P1.2P1.3P1.4P1.5P1.6P1.7P1.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7P3.0VCCALEPSENP0.1P0.2P0.3P0.4P0.5P0.6P0.7P0.0P2.6P2.5P2.4P2.3P2.2P2.1P2.0P2.7A0A1A2A3A4A5A6A7A15A14A13A12A11A9A8A10/D0/D1/D2/D3/D4/D5/D6/D7電源訪問(wèn)外部程序存儲(chǔ)器控制信號(hào)線地址鎖存允許信號(hào)線訪問(wèn)外部程序存儲(chǔ)器讀選通信號(hào)線地RXD/TXD/INT0/INT1/T0/T1/WR/RD/時(shí)鐘信號(hào)線1時(shí)鐘信號(hào)線2復(fù)位信號(hào)線12345678910111213141516

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