C8051F321-GMR Datasheet, PDF (69/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
C8051F320/1
From VBUS
From 5V
Power Net
To 3V
Power Net
VBUS
REGIN
VDD
VBUS Sense
5V In
Voltage Regulator (REG0)
3V Out
Device
Power Net
Figure 8.3. REG0 Configuration: USB Self-Powered
C8051F320/1
From VBUS
VBUS
REGIN
VBUS Sense
5V In
Voltage Regulator (REG0)
From 3V
Power Net
VDD
3V Out
Device
Power Net
Figure 8.4. REG0 Configuration: USB Self-Powered, Regulator Disabled
Rev. 1.4
69