SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 8
SAM3A4C
Manufacturer Part Number
SAM3A4C
Description
Manufacturer
Atmel Corporation
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3. Signal Description
Table 3-1.
8
Signal Name
VDDIO
VDDUTMI
VDDOUT
VDDIN
GNDUTMI
VDDBU
GNDBU
VDDPLL
GNDPLL
VDDANA
GNDANA
VDDCORE
GND
XIN
XOUT
XIN32
XOUT32
VBG
PCK0 - PCK2
SHDN
FWUP
SAM3X/A
Signal Description List
Function
Peripherals I/O Lines Power Supply
USB UTMI+ Interface Power Supply
Voltage Regulator Output
Voltage Regulator, ADC and DAC Power
Supply
USB UTMI+ Interface Ground
Backup I/O Lines Power Supply
Backup Ground
PLL A, UPLL and Oscillator Power Supply
PLL A, UPLL and Oscillator Ground
ADC and DAC Analog Power Supply
ADC and DAC Analog Ground
Core Chip Power Supply
Ground
Main Oscillator Input
Main Oscillator Output
Slow Clock Oscillator Input
Slow Clock Oscillator Output
Bias Voltage Reference
Programmable Clock Output
Shut-Down Control
Force Wake-up Input
Table 3-1
gives details on the signal names classified by peripheral.
Clocks, Oscillators and PLLs
Shutdown, Wakeup Logic
Power Supplies
Ground
Ground
Ground
Ground
Ground
Analog
Output
Output
Output
Output
Power
Power
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Active
Level
Reference
VDDPLL
Voltage
VDDBU
VDDBU
VDDBU
Comments
1.62V to 3.6V
3.0V to 3.6V
1.62V to 3.6V
1.62 V to 1.95V
2.0V to 3.6V
1.62V to 1.95V
0: The device is in
backup mode
1: The device is
running (not in
backup mode)
Needs external Pull-
up
11057A–ATARM–17-Feb-12
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