Datasheet

Check Signal Name Recommended Pin
Connection
Description
VDDIN Decoupling/filtering
capacitors
(100 nF and 4.7
μF)
(1)(2)
Powers the voltage regulator, AFE, DAC, and Analog comparator
power supply
Supply ripple must not exceed 20 mVrms for 10 kHz to 20 MHz
range.
WARNING
VDDIN and VDDIO must have the same level and
must be higher than VDDCORE.
WARNING
Powerup and powerdown sequences given in the
“Power Considerations” chapter must be respected.
VDDIO Decoupling/filtering
capacitors
(100 nF)
(1)(2)
Powers the Peripheral I/O lines (Input/Output Buffers), backup
part, 1 Kbyte of Backup SRAM, 32 kHz crystal oscillator,
oscillator pads
Decoupling/filtering capacitors must be added to improve startup
stability and reduce source voltage drop.
Supply ripple must not exceed 30 mVrms for 10 kHz to 10 MHz
range.
WARNING
VDDIN and VDDIO must have the same level and
must be higher than VDDCORE.
WARNING
Powerup and powerdown sequences given in the
“Power Considerations” chapter must be respected.
VDDUTMII Decoupling capacitor
(100 nF)
(1)(2)
Powers the USB transceiver interface. Must be connected to
VDDIO.
For USB operations, VDDUTMII and VDDIO voltage ranges
must be from 3.0V to 3.6V
.
Must always be connected even when the USB is not used.
Decoupling/filtering capacitors must be added to improve startup
stability and reduce source voltage drop.
Supply ripple must not exceed 20 mVrms for 10 kHz to 10 MHz
range.
VDDPLLUSB Decoupling/filtering RLC
circuit
(1)
Powers the UTMI PLL and the 3 to 20 MHz oscillator.
The VDDPLLUSB power supply pin draws small current, but it is
noise sensitive. Care must be taken in VDDPLLUSB power
supply routing, decoupling and also on bypass capacitors.
Supply ripple must not exceed 10 mVrms for 10 kHz to 10 MHz
range.
VDDOUT Decoupling capacitor
(100 nF + 1 μF)
(1)(2)
Voltage Regulator Output
SAM E70/S70/V70/V71 Family
Schematic Checklist
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1911