C8051F320-TB Silicon Laboratories Inc, C8051F320-TB Datasheet - Page 68

• Manufacturer Part Number: C8051F320-TB
• Description: BOARD PROTOTYPING W/C8051F320
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F320-TB

• Contents: Board
• Processor To Be Evaluated: C8051F320/F321
• Interface Type: USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F320
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

C8051F320/1
Important Note: When USB is selected as a reset source, a system reset will be generated when the
VBUS signal matches the polarity selected by the VBPOL bit. See Section “10. Reset Sources” on page 99
for details on selecting USB as a reset source.
68
Table 8.1. Voltage Regulator Electrical Specifications
–40 to +85 °C unless otherwise specified.
Input Voltage Range
Output Voltage (V
Output Current
VBUS Detection Input Low Voltage
VBUS Detection Input High Voltage
Bias Current
Dropout Voltage (V
Notes:
1. Input range specified for regulation. When an external regulator is used, REGIN should be tied to
2. Output current is total regulator output, including any current required by the C8051F320/1.
3. The minimum input voltage is 2.70 V or VDD + V
From VBUS
Power Net
Parameter
2
To 3V
DD
DO
Figure 8.2. REG0 Configuration: USB Bus-Powered
1
)
2
)
3
REGIN
VBUS
VDD
Output Current = 1 to 100 mA
Normal Mode (REGMOD = 0)
Low Power Mode (REGMOD = 1)
C8051F320/1
Conditions
Rev. 1.4
DO
5V In
(max load), whichever is greater.
Voltage Regulator (REG0)
VBUS Sense
3V Out
Min
2.7
3.0
3.0
—
—
—
—
Typ
3.3
65
35
—
—
—
—
1
Power Net
Device
Max
5.25
100
111
3.6
1.0
61
—
—
V
DD
mV/mA
Units
.
mA
µA
V
V
V
V