Atmel Automotive GmbH SAMHA1G16A Manuale Utente

External power

5V ±2% (±100mV) for

USB host operation.

4.3V to 5.5V if USB host

operation is not

required.

Recommended

minimum is 1A to be

able to provide enough

current for connected

USB devices and the

board itself.

Recommended

maximum is 2A due to

the input protection

maximum current

specification.

PWR

Embedded debugger

USB

4.4V to 5.25V (according

to USB spec.)

500mA (according to

USB spec.)

DEBUG USB

External HV input

6V to 28V

Voltage regulator in SBC

is specified for up to

85mA. This input also

supplies the LIN Bus

and all the other

features of the SBC. It's

recommended to use at

least 500mA.

VS and GND on

Connector HV

The kit will automatically detect which power sources are available and choose which one to use

according to the following priority:

1. External power.
2. Embedded Debugger USB.
3. External HV input

Note:  The selection for the supply of the Target MCU has a separate connector. The above priority

selects which supply is used to power the EDBG and the VCC_P3V3_CON.

Info:  External power is required when 500mA from a USB connector is not enough to power

the board with possible extension boards.

Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100mil extension header. Xplained Pro MCU

boards have male headers, while Xplained Pro extensions have their female counterparts. Note that all

pins are not always connected. All connected pins follow the defined pin-out description in the table

below.

Atmel SAMHA1G16A Xplained Pro [USER GUIDE]

Atmel-00001-SAMHA1G16A-Xplained-Pro_User Guide-11/2014

8