关于407工作电压的问题

2019-07-20 19:58发布

用直流电压源供电,GPIO口复用推挽输出,当电压降到2V2时,GPIO口就不输出了,板子自动reset。请问大家407的最低工作电压是多少
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9条回答
augustedward
1楼-- · 2019-07-20 20:32
 精彩回答 2  元偷偷看……
maxwell449
2楼-- · 2019-07-20 23:34
 精彩回答 2  元偷偷看……
augustedward
3楼-- · 2019-07-21 02:01
1.8 V to 3.6 V application supply and I/Os
augustedward
4楼-- · 2019-07-21 02:07
During power on, the Brownout reset (BOR) keeps the device under reset until the supply voltage reaches the specified VBOR threshold. VBOR is configured through device option bytes. By default, BOR is off. 4 programmable VBOR thresholds can be selected. ● BOR off (VBOR0): reset threshold level for 1.8 to 2.10 V voltage range ● BOR Level 1 (VBOR1): reset threshold level for 2.10 to 2.40 V voltage range ● BOR Level 2 (VBOR2): reset threshold level for 2.40 to 2.70 V voltage range ● BOR Level 3 (VBOR3): reset threshold level for 2.70 to 3.60 V voltage range When the supply voltage (VDD) drops below the selected VBOR threshold, a device reset is generated.
maxwell449
5楼-- · 2019-07-21 04:45
augustedward 发表于 2016-9-20 16:05
During power on, the Brownout reset (BOR) keeps the device under reset until the supply voltage reac ...

大哥,这个VBOR0从1.8到2.10V的时候是在连续reset吗?
augustedward
6楼-- · 2019-07-21 05:08
 精彩回答 2  元偷偷看……

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