Arduino ABX00061, Reference Manual, Page: 8 / 25

Arduino® Nicla Voice
8 / 25 Arduino® Nicla Voice Modified: 05/01/2023
1.4 Assembly Overview
Example: Example of a typical solution for remote environmental sensing including an Arduino® Nicla Voice,
Arduino® Portenta H7 and battery. Notice the orientation of the battery's cable in the board's connector.
Note: The NTC pin on the battery connector is optional. This is a feature that allows safer use and thermal shutoff
of the PMIC.
2 Ratings
Symbol Description Min Typ Max Unit
V
IN
Input voltage from VIN pad 3.5 5.0 5.5 V
V
USB
Input voltage from USB connector 4.8 5.0 5.5 V
V
DDIO_EXT
Level Translator Voltage 1.8 3.3 3.3 V
V
IH
Input high-level voltage
0.7V
DDIO_EXT
1
V
DDIO_EXT
V
V
IL
Input low-level voltage 0
0.3V
DDIO_EXT
2
V
T
OP
Operating Temperature 0 25 70 °C
Note : V
DDIO_EXT
is software programmable. While the ADC inputs can accept up to 3.3 V, the maximum value is at
the ANNA-B112 operating voltage.
All I/O pins operate at V
DDIO_EXT
apart from the following:
ADC1 and ADC2 - 1.8 V
JTAG_SAMD11 - 3.3 V
JTAG_ANNA - 1.8 V
JTAG_BMI - 1.8 V