C8051F342 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

From VBUS

To 3 V

Power Net

VBUS

REGIN

VDD

VBUS Sense

5 V In

Voltage Regulator (REG0)

3 V Out

Device

Power Net

Figure 8.1. REG0 Configuration: USB Bus-Powered

From VBUS

From 5 V

Power Net

To 3 V

Power Net

VBUS

REGIN

VDD

VBUS Sense

5 V In

Voltage Regulator (REG0)

3 V Out

Device

Power Net

Figure 8.2. REG0 Configuration: USB Self-Powered

70

Rev. 1.3

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