Schematics Design Checklist - Digi ConnectCore 6UL Hardware Design Manuallines

Schematics design checklist

The microprocessor used on this module, like all CMOS devices, can be driven into a latch-
up condition if any I/O pin is driven outside of its associated power rail. Care must be taken
to:
Never drive an I/O pin beyond its positive rail or below ground.
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Never drive an I/O pin from an external power source during the power-on or reset
n
sequences.
Never hot-swap the module or interrupt its ground connection to external circuitry.
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Latch-up is a condition that can cause excessive current draw and result in excessive
heating of the microprocessor or its power supplies. This excessive heating can
permanently damage the microprocessor and/or its supporting components.
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Item
Power supply
1. Input power
of the SOM
ConnectCore 6UL Hardware Design Guidelines
Description
Make sure the input power supply of the module follows one of the two
available configurations:
VSYS
With front- Connected to
end LDO Mosfet drain
Without Input power line:
front-end 3.7V - 4.5V
LDO
Note For detailed information about the input power circuitry, see the
ConnectCore 6UL System-on-Module Hardware Reference
LDOG VPWR
Connected to Input power line:
Mosfet gate 4.6V - 5.5V
Floating Grounded
Manual.
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