主題：arm開發(fā)流程-資料下載頁
2024-10-17 20:22本頁面
【導(dǎo)讀】嵌入式處理器芯片才可能工作。這些提供嵌入式處理。很重要，所以也把這部分也歸入最小系統(tǒng)中。基礎(chǔ)，具有極其重要的地位，但卻往往被忽略。源系統(tǒng)處理得好，整個(gè)系統(tǒng)的故障往往減少了一大半。磁兼容和電磁干擾；主要考慮是否需要將數(shù)字電源和模擬電源分開。LPC2020系列微控制70mA。能夠提供的電流應(yīng)當(dāng)大于300mA。合乎技術(shù)參數(shù)的LDO芯片很多，Sipex半。一些產(chǎn)品可以與它直接替換，減少采購(gòu)風(fēng)險(xiǎn)。1A穩(wěn)定峰值電流；過流及溫度保護(hù)；多種封裝供選擇。系統(tǒng)不好設(shè)計(jì)，同時(shí)影響芯片的性能。級(jí)調(diào)整以適應(yīng)末級(jí)的輸入。通過之前的分析，前級(jí)的輸。這個(gè)電壓滿足SPX1117的要求；目前很多器件還是需要5V供電的，這個(gè)5V可以兼。它們的特別如下：。率較大時(shí)可以減小電源模塊的體積；信號(hào)才能工作，大多數(shù)微控制器具有晶體振蕩器。蕩源提供時(shí)鐘信號(hào)。
【正文】 3VDD3.3VDD1.8VDD1.8VDD3.3D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15P 2 .2 6 _ D 2 6P 2 .2 7 _ D 2 7A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7A6A5A4A3A2A1A0V D D 3 .3V D D 3 .3V D D 3 .3V D D 3 .3V D D 3 .3V D D 3 .3n B L S 1n B L S 0n W En O En C S 1n C S 0n C S 2n C S 3XTAL1XTAL2P 0 .1 4 _ D C D 1nRSTP 2 .2 2 / D 2 21V32V s s3P 0 .2 1 / P W M 5 / R D 3 / C A P 1 .34P 0 .2 2 / T D 3 / C A P 0 .0 / M A T 0 .05P 0 .2 3 / R D 26P 1 .1 9 / T R A C E P K T 37P 0 .2 4 / T D 28V s s9P 2 .2 3 / D 2 310P 2 .2 4 / D 2 411P 2 .2 5 / D 2 512P 2 .2 6 / D 2 6 / B O O T 013V 3 A14P 1 .1 8 / T R A C E P K T 215P 2 .2 7 / D 2 7 / B O O T 116P 2 .2 8 / D 2 8 / R D 617P 2 .2 9 / D 2 9 / T D 618P 2 .3 0 / D 3 0 / A I N 419P 2 .3 1 / D 3 1 / A I N 520P 0 .2 5 / R D 121T D 122P 0 .2 7 / A I N 0 / C A P 0 .1 / M A T 0 .123P 1 .1 7 / T R A C E P K T 124P 0 .2 8 / A I N 1 / C A P 0 .2 / M A T 0 .225V s s26P 3 .2 9 / B L S 2 / A I N 627P 3 .2 8 / B L S 3 / A I N 728P 3 .2 7 / W E29P 3 .2 6 / C S 130V331P 0 .2 9 / A I N 2 / C A P 0 .3 / M A T 0 .332P 0 .3 0 / A I N 3 / E I N T 3 / C A P 0 .033P 1 .1 6 / T R A C E P K T 034P 3 .2 5 / C S 2 / R D 635P 3 .2 4 / C S 3 / T D 636V1837Vss38V339P3.23/A23/XCLK40P3.22/A2241P0.0/TxD0/PWM142P1.31/TRST43P3.21/A2144P3.20/A2045P3.19/A1946P3.18/A1847P3.17/A1748P0.1/RxD0/PWM3/EINT049P0.2/SCL/CAP0.050P1.26/RTCK52P3.16/A1653Vss54P3.15/A1555P3.14/A1456V357P0.3/SDA/MAT0.0/EINT158P0.4/SCK0/CAP0.159P1.25/EXTIN060P0.5/MISO0/MAT0.161P3.13/A1362P3.12/A1263P3.11/A1164P3.10/A1065P3.9/A966Vss67P0.6/MOSI0/CAP0.268P0.7/SSEL0/PWM2/EINT269P1.24/TRACECLK70P3.8/A871P3.7/A772V351P 3 .6 / A 673P 3 .5 / A 574P 0 .8 / T x D 1 / P W M 475P 0 .9 / R x D 1 / P W M 6 / E I N T 376V377P 0 .1 0 / R T S 1 / C A P 1 .0 / R D 578V s s79P 3 .4 / A 480P 3 .3 / A 381P 1 .2 3 / P I P E S T A T 282P 0 .1 1 / C T S 1 / C A P 1 .1 / T D 583P 0 .1 2 / D S R 1 / M A T 1 .0 / R D 484P 0 .1 3 / D T R 1 / M A T 1 .1 / T D 485P 1 .2 2 / P I P E S T A T 186P 3 .2 / A 287P 3 .1 / A 188P 3 .0 / A 089P 1 .1 / O E90P 1 .0 / C S 091P 0 .1 4 / D C D 1 / E I N T 192V s s93V394P 1 .2 1 / P I P E S T A T 095P 3 .3 1 / B L S 096P 3 .3 0 / B L S 197P 2 .0 / D 098P 0 .1 5 / R i 1 / E I N T 299P 0 .1 6 / E I N T 0 / M A T 0 .2 / C A P 0 .2100P 0 .1 7 / C A P 1 .2 / S C K 1 / M A T 1 .2101P 1 .2 0 / T R A C E S Y N C102V s s103V3104P 2 .1 / D 1105P 2 .2 / D 2106V s s107P 2 .3 / D 3108P2.4/D4109V18110Vss111V3112P1.30/TMS113P2.5/D5114P2.6/D6115P2.7/D7116P2.8/D8117P2.9/D9118V3119P2.10/D10120P0.18/CAP1.3/MISO1/MAT1.3121P0.19/MAT1.2/MOSI1/MAT1.3122P0.20/MAT1.3/SSEL1/EINT3123P2.11/D11124P2.12/D12125P1.29/TCK126P2.13/D13127Vss128P2.14/D14129P2.15/D15130P2.16/D16131P2.17/D17132P2.18/D18133P2.19/D19134RESET135P2.20/D20136P2.21/D21137VssA_PLL138VssA139P1.28/TDI140XTAL2141XTAL1142V18A143P1.27/TDO144U1LPC2210A01A12A23A34A45CE6I / O 07I / O 18I / O 29I / O 310V c c11V s s12I / O 413I / O 514I / O 615I / O 716WE17A518A619A720A821A922A 1 023A 1 124A 1 225A 1 326A 1 427NC28I / O 829I / O 930I / O 1 031I / O 1 132V c c33V s s34I / O 1 235I / O 1 336I / O 1 437I / O 1 538B L E39B H E40OE41A 1 542A 1 643A 1 744IS 61 LV 25 61 6A LA 1 51A 1 42A 1 33A 1 24A 1 15A 1 06A97A88A 1 99NC10WE11NC12NC13NC14NC15A 1 816A 1 717A718A619A520A421A322A223A124A025CE26V s s27OE28DQ029DQ830DQ131DQ932DQ233D Q 1 034DQ335D Q 1 136V d d37DQ438D Q 1 239DQ540D Q 1 341DQ642D Q 1 443DQ744D Q 1 545V s s46NC47A 1 648SS T3 9V F1 60D0D1D2D3D4D5D6D7D8D9D 1 0D 1 1D 1 2D 1 3D 1 4D 1 5A1A2A3A4A5A6A7A8A9A 1 0A 1 1A 1 2A 1 3A 1 4A 1 5A 1 6A 1 7D0D1D2D3D4D5D6D7D8D9D 1 0D 1 1D 1 2D 1 3D 1 4D 1 5A1A2A3A4A5A6A7A8A9A 1 0A 1 1A 1 2A 1 3A 1 4A 1 5A 1 6A 1 7A 1
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