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<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="上下电时序 VCC33_IO 、VDD11_SYS 和 LDO18 供电无上下电顺序要求。VCC33_IO 上电上升沿时间需大于 150 us。 复位源 芯片系统有以下复位源，以下任何一种复位条件成立，会对芯片产生复位： 系统上电复位：在 VCC33_IO 和 VDD11_SYS 上电后产生复位，上电 10 ms 内系统自动放开此复位。 RTC 上电复位：在 RTC 上电后（供电来源 ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="topic"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-09-27"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="topic_psl_vh2_qbc"/><meta name="DC.language" content="zh-CN"/><title>上下电时序及复位</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/product/d13x-pullup-down-timing.dita"/><meta name="wh-out-relpath" content="topics/product/d13x-pullup-down-timing.html"/>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/product/d13x-pullup-down-timing.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">上下电时序及复位</h1><div class="date inPage">27 Sep 2024</div><div style="color: gray;"></div><div class="- topic/body body"><section class="- topic/section section" id="topic_psl_vh2_qbc__section_nqw_zzh_31c" data-ofbid="topic_psl_vh2_qbc__section_nqw_zzh_31c"><h2 class="- topic/title title sectiontitle">上下电时序</h2>
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<p class="- topic/p p" data-ofbid="d306196e27__20250121171812">VCC33_IO
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、VDD11_SYS 和
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LDO18
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供电无上下电顺序要求。VCC33_IO 上电上升沿时间需大于 150
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us。</p>
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<p class="- topic/p p" data-ofbid="d306196e59__20250121171812"></p>
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</section><section class="- topic/section section" id="topic_psl_vh2_qbc__section_oqw_zzh_31c" data-ofbid="topic_psl_vh2_qbc__section_oqw_zzh_31c"><h2 class="- topic/title title sectiontitle">复位源</h2>
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<div class="- topic/p p" data-ofbid="d306196e67__20250121171812">芯片系统有以下复位源，以下任何一种复位条件成立，会对芯片产生复位：<ul class="- topic/ul ul" id="topic_psl_vh2_qbc__ul_qqw_zzh_31c" data-ofbid="topic_psl_vh2_qbc__ul_qqw_zzh_31c"><li class="- topic/li li" data-ofbid="d306196e70__20250121171812">系统上电复位：在 VCC33_IO 和 VDD11_SYS 上电后产生复位，上电 10 ms 内系统自动放开此复位。</li><li class="- topic/li li" data-ofbid="d306196e72__20250121171812">RTC 上电复位：在 RTC 上电后（供电来源 VCC33_IO 和 VCOIN）自动完成复位。</li><li class="- topic/li li" data-ofbid="d306196e74__20250121171812">外部引脚复位：引脚 RESETN 输入低电平并持续 2 ms 以上产生复位。</li><li class="- topic/li li" data-ofbid="d306196e76__20250121171812">调试器复位：在接收到 JTAG IO 上的 RESET 命令后立即产生复位。</li><li class="- topic/li li" data-ofbid="d306196e78__20250121171812">看门狗复位：通过软件使能后，在 WDOG 超时复位条件满足下立即产生复位。</li><li class="- topic/li li" data-ofbid="d306196e80__20250121171812">过温复位：通过软件使能后，在 THS 温度超过设定值时立即产生复位。</li><li class="- topic/li li" data-ofbid="d306196e82__20250121171812">电压比较复位：通过软件使能后，在 RTC_IO
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电压比参考电压高（可配置，或比参考电压低）时立即产生复位</li></ul></div>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#topic_psl_vh2_qbc__section_nqw_zzh_31c" data-tocid="topic_psl_vh2_qbc__section_nqw_zzh_31c">上下电时序</a></div></li><li class="section-item"><div class="section-title"><a href="#topic_psl_vh2_qbc__section_oqw_zzh_31c" data-tocid="topic_psl_vh2_qbc__section_oqw_zzh_31c">复位源</a></div></li></ul></div>
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