Power Sources; Xplained Pro Headers And Connectors; Xplained Pro Standard Extension Header - Microchip Technology ATmega4809 Xplained Pro Manual

identifies the extension with its name and some extra data. When an Xplained Pro extension is connected to an
Xplained Pro Evaluation Kit, the information is read and sent to the Microchip Studio/MPLAB
shows the data fields stored in the ID chip with example content.
Table 3-2. Xplained Pro ID Chip Content
Data Field
Manufacturer
Product name
Product revision
Product serial number
Minimum voltage [mV]
Maximum voltage [mV]
Maximum current [mA]
3.3

Power Sources

The ATmega4809 Xplained Pro kit can be powered by several power sources, as listed in the following table.
Table 3-3. Power Sources for ATmega4809 Xplained Pro
Power Source
External power
Embedded debugger USB
The kit automatically detects the available power sources and chooses which to use according to the following
priority:
1. External power
2. Embedded debugger USB
Info: External power is required when 500 mA from a USB connector is not enough to power the board
with possible extension boards.
3.4

Xplained Pro Headers and Connectors

3.4.1

Xplained Pro Standard Extension Header

All Xplained Pro kits have many dual-row, 20-pin, 100 mil extension headers. The Xplained Pro MCU boards have
male headers, while the Xplained Pro extensions have their female counterparts. The following table provides the pin
description of all the connected pins.
©
2020 Microchip Technology Inc.
Data Type
ASCII string
ASCII string
ASCII string
ASCII string
uint16_t
uint16_t
uint16_t
Voltage Requirements
5V ±2% (±100 mV) for USB
host operation. 4.3V to
5.5V if a USB host
operation is not required.
4.4V to 5.25V (according to
USB specification)
User Guide
ATmega4809 Xplained Pro
Microchip'\0'
Segment LCD1 Xplained Pro'\0'
02'\0'
1774020200000010'\0'
3000
3600
30
Current Requirements
The recommended value
for the maximum current is
2A
500 mA (according to USB
specification)
Xplained Pro
®
X. The following table
Example Content
Connector Marking
PWR
DEBUG USB
DS50002716C-page 8