4.
Hardware User Guide
4.1
Power Distribution
ATtiny3217 Xplained Pro has two power sources; EDBG USB and external 5.0V. The kit will automatically select the
power source. The kit has two on-board 3.3V voltage regulators; one for the EDBG and XAM, and one for the
ATtiny3217 and other peripherals.
Figure 4-1. Power Supply Block Diagram
VCC_P5V0
EDBG and XAM
ATtiny3217
Regulator 3.3V
Power source
Power switch
Power converter
Power consumer
VCC_P3V3
Peripherals
Power
Measurement
Select
External 5V
input
EDBG USB
Auto MUX
Regulator 3.3V
Jumper
VCC_MCU
VCC_TARGET
4.2
Connectors
The following sections describe the implementation of the relevant connectors and headers on the ATtiny3217
Xplained Pro and their connection to the ATtiny3217. The tables of connections in the sections also describe which
signals are shared between the headers and on-board functionality. The figure below shows all available connectors
and jumpers on ATtiny3217 Xplained Pro.
ATtiny3217 Xplained Pro
Hardware User Guide
©
2020 Microchip Technology Inc.
User Guide
DS50002765B-page 12
