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SH79F166AP044PR Datasheet(PDF) 97 Page - List of Unclassifed Manufacturers

Part # SH79F166AP044PR
Description  Enhanced 8051 microcontroller with 10-bit ADC
PDF  113 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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SH79F166AP044PR Datasheet(HTML) 97 Page - List of Unclassifed Manufacturers

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SH79F166A
97
8.11 预热计数器
8.11.1 特性
 内建电源预热计数器消除电源的上电的不稳定状态
 内建振荡器预热计数器消除振荡器起振时的不稳定状态
SH79F166A内建有电源上电预热计数器,主要是用来消除上电电压建立时的不稳定态,同时完成内部一些初始化序列,如
读取内部客户代码选项等。
SH79F166A内建振荡器预热计数器,它能消除振荡器在下列情况下起振时的不稳定状态:上电复位,引脚复位,从低功耗
模式中唤醒,看门狗复位和LVR复位。
上电后,SH79F166A会先经过电源上电预热计数过程,等待溢出后再进行振荡器的预热计数过程过程,溢出后开始运行程
式。
电源上电预热计数时间
上电复位/
引脚复位/低电压复位
看门狗复位
(不包含掉电模式)
看门狗复位
(唤醒掉电模式)
掉电模式下中断唤醒
电源上电
预热计数时间
振荡器上电
预热计数时间
电源上电
预热计数时间
振荡器上电
预热计数时间
电源上电
预热计数时间
振荡器上电
预热计数时间
电源上电
预热计数时间
振荡器上电
预热计数时间
11ms
有
≈1ms
无
≈1ms
有
≈800us
有
振荡器上电预热计数时间
代码选项:
OP_WMT
振荡器类型
00
01
10
11
陶振/晶振
2
17 X Tosc
2
14 X Tosc
2
11 X Tosc
2
8 X Tosc
32kHz晶振
2
13 X Tosc
内部RC
2
7 X Tosc



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