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STM32F405RG 参数 Datasheet PDF下载

STM32F405RG图片预览
型号: STM32F405RG
PDF下载: 下载PDF文件 查看货源
内容描述: ARM的Cortex- M4 32B MCUFPU , 210DMIPS ,高达1MB闪存/ 1924KB RAM , USB OTG HS / FS [ARM Cortex-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS]
分类和应用: 闪存
文件页数/大小: 185 页 / 5432 K
品牌: STMICROELECTRONICS [ ST ]
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STM32F405xx, STM32F407xx  
Description  
Figure 8. PDR_ON and NRST control with internal reset OFF  
V
DD  
PDR = 1.7 V or 1.8 V (1)  
time  
Reset by other source than  
power supply supervisor  
NRST  
PDR_ON  
PDR_ON  
time  
MS19009V6  
1. PDR = 1.7 V for reduce temperature range; PDR = 1.8 V for all temperature range.  
2.2.16  
Voltage regulator  
The regulator has four operating modes:  
Regulator ON  
Main regulator mode (MR)  
Low power regulator (LPR)  
Power-down  
Regulator OFF  
Regulator ON  
On packages embedding the BYPASS_REG pin, the regulator is enabled by holding  
BYPASS_REG low. On all other packages, the regulator is always enabled.  
There are three power modes configured by software when regulator is ON:  
MR is used in the nominal regulation mode (With different voltage scaling in Run)  
In Main regulator mode (MR mode), different voltage scaling are provided to reach the  
best compromise between maximum frequency and dynamic power consumption.  
Refer to Table 14: General operating conditions.  
LPR is used in the Stop modes  
The LP regulator mode is configured by software when entering Stop mode.  
Power-down is used in Standby mode.  
The Power-down mode is activated only when entering in Standby mode. The regulator  
output is in high impedance and the kernel circuitry is powered down, inducing zero  
consumption. The contents of the registers and SRAM are lost)  
DocID022152 Rev 4  
25/185  
 
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