Technical specifications Regulatory approvals
Digi XBee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide
104
Symbol Parameter Condition Min Typical Max Units
VI Voltage on 5 V
tolerant pins
XBee pin 6 -0.3 Min
(5.25,VDD_
IO+2)
1
V
Other input pins -0.3 VDD_IO +
0.3
V
VIL Input low voltage 0.3*VDD_IO V
VIH Input high
voltage
0.7*VDD_
IO
V
VOL Voltage output
low
Sinking 3 mA VDD_IO = 3.3 V 0.2*VDD_IO V
VOH Voltage output
high
Sourcing 3 mA VDD_IO = 3.3
V
0.8*VDD_
IO
V
I_IN Input leakage
current
High Z state I/O connected
to Ground or VDD_IO
0.1 100 nA
RPU Internal pull-up
resistor
Enabled 40 kΩ
RPD Internal pull-
down resistor
Enabled 40 kΩ
Regulatory approvals
The following table provides the regulatory and carrier approvals for the device.
Specification Value
Model XB3C1
United States
FCC ID: MCQ-XB3C1
Contains FCC ID: RI7XE866A1NA
Innovation, Science and Economic Development Canada (ISED)
IC: 1846A-XB3C1
Contains IC: 5131A-XE866A1NA
Europe (CE) N/A
RoHS Lead-free and RoHS compliant
Australia N/A
AT&T end-device certified Yes
PTCRB end-device certified No
1
Pin 6 is also 5 V tolerant even when the XBee Smart Modem is not powered. We recommend only driving this
pin with 3.3 V for compatibility with other XBee products. The VBUS line is not used to enable/disable USB on
this product.