Digi Connect ME Hardware Reference Manual

Module specifications DC characteristics
Digi Connect ME, Wi-ME, ME 9210, Wi-ME 9210 Hardware Reference Manual
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during the supply’s voltage ramp-up in a way that insures the voltage ramp-up is
continuous and monotonic. The input voltage rise time of the +3.3v power supply must
be between 700 uS and 140ms. A rise time outside of these limits may cause the device
to malfunction and give a 3-1-3 diagnostic error.
Inputs
Symbol Description Min Typ Max Unit
V
IH
Input High Voltage 2 — V
CC
+0.3 V
V
IL
Input Low Voltage V
SS
-0.3 — .8 V
Outputs
Symbol Description Min Typ Max Unit
V
OH
Output High Volt age 2.4 — 3.45 V
V
OL
Output Low Voltage 0 — 0.4 V
Note The embedded modules provide an on board supervisor circuit with a 2.93V (nominal) reset
threshold. When V
CC
falls to the threshold voltage, a reset pulse is issued, holding the output in active
state. When power rises above 2.88V, the reset remains for approximately 250 ms to allow the system
clock and other circuits to stabilize.
Digi Connect ME Digi Connect Wi-ME
Storage
Temperature
-40° F to 257° F
(-40° C to 125° C)
Relative
Humidity
5% to 90%, not to exceed 95% non-condensing (4° C to 45° C), constant absolute
humidity above 45° C
Altitude 12,000 feet
(3657.60 meters)
Grounding recommendation
It is recommended that you connect the tabs on the chassis of the Digi Connect ME / Wi-ME, and the
ground pins directly to the logic ground plane. It is also recommended that you connect the Digi
Connect ME / Wi-ME to the metal chassis of your enclosure. The idea is to provide the shortest path or
a path away from circuitry for ESD to travel to ground.

Digi Connect ME Specifications

General

Brand	Digi
Model	Connect ME
Category	Network Hardware
Language	English