Datasheet

Hologram Nova Global IoT Cellular USB Modem
Data Sheet and Hardware Reference
Issue 04 (2018-09-07) Page: 6
Technical Specifications
Absolute Maximum Ratings (Power Inputs)
Stressing the device above one or more of the ratings listed in the Absolute Maximum
Rating section may cause permanent damage. These are stress ratings only. Operating
the device at these or at any conditions other than those specified in the Operating
Conditions should be avoided. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
Symbol
Description
Min.
Max.
Unit
VCC, USB 5V
Input DC voltage at VCC pins
-0.30
5.50
V
USB D+/D- line
Input DC voltage at USB_D+/D- pins
-1.00
5.35
V
UBLOX_RTS
UBLOX_CTS
UBLOX_TXD
UBLOX_RXD
Input DC voltage at u-blox digital interface
pins
-0.30
3.60
V
UBLOX_RESET_N
Input DC voltage at u-blox RESET_N pin
-0.15
2.10
V
GPIO2
GPIO3
GPIO4
Input DC voltage at u-blox GPIO pins
-0.30
3.60
V
For power draw characteristics under certain cellular conditions, please view respective
u-blox datasheets.
Operating Conditions
The Hologram Nova is designed to operate within temperatures between -45°C to 85°C.
It is not designed to withstand material contact with moisture or any other conductors,
aside from intended use of the USB. The Hologram Nova may be installed into
appropriate enclosures that can protect the device from heat, cold, moisture, and
humidity for Industrial use.
If handling the Nova circuit board directly, please do so in an ESD-safe environment and
wear ESD protection.