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**please note that this range can be widened by the use of an external MOSFET; for more details please refer to [mailto:support-axel@dave.eu technical support]
*3: power supply voltage range is 3.25 - 3.465V (that us 3.3 +5%/-1.5%).
Voltage references for single-ended I/O signals the same for all configurations. They are detailed in the following table.
{|class="wikitable" style="text-align: center;"
|-
!Signal groups
!Voltage reference
!SODIMM pin number
!Nominal voltage
!
|-
| x||3V3_IO||155||3.3
|-
| SNVS_TAMPER[9:0]||VDD_SNVS_IN||143||3.0
|}
'''What is interfaced to 3.3V signals at carrier board level may be referenced to a different voltage than 3.3V_IO. However, the difference between this voltage and 3.3V_IO must not exceed 300mV.'''
In case
*one of the following ordering codes is used: <code>DA p l r n c '''0''' t s</code>, <code>DA p l r n c '''1''' t s</code> or <code>DA p l r n c '''3''' t s</code>
*the same voltage rail is used to power AXEULite SOM and 3.3V carrier board circuitry
this constraint is automatically satisfied.
Since powering is strictly related to reset signals, reading of [[Reset_scheme_(AXELULite)|this page]] is highly recommended.
