Multi-Tech MultiConnect mDot MTDOT Series, Developer'S Manual

Page: 21 / 69

SPECIFICATIONS AND PIN INFORMATION
MultiConnect
®
mDot
TM
MTDOT Developer Guide for Japan 21
Electrical and Timing Characteristics
Note:
All measurements taken at VDD = 3.3 V and 25 degrees Celsius ambient temperature unless
otherwise specified.
Refer to the ST Micro STM32F411RE datasheet for more detailed processor IO characteristics.
The STM32F411RE and other onboard ICs are powered by an internal 3.0V voltage regulator.
Signal Description Conditions Min Typical Max Units
VCC Operating Voltage 3.3 -- 5 V
Vin Low IO input low level -- -- 0.9 V
Vin High IO input high level 2.1 -- -- V
Vout Low IO output low level Pin current = 8mA -- -- 0.4 V
Vout High IO output high level 3.3V < VDD < 5V 2.4 -- -- V
Vout Low IO output low level Pin current = 20mA -- -- 1.3 V
Vout High IO output high level 3.3V < VDD < 5V 1.7 -- -- V
ICC Idle mode (no TX, no
RX), processor active -- 32 -- mA
TX, TXP=2 -- 34 -- mA
TX, TXP=11 -- 73 -- mA
TX, TXP=20 -- 130 -- mA
Maximum supply
current. Transmitting
at TXP=20, all
peripherals active, no
load on IO pins. VDD
= 3.3V. 25 degC
ambient
temperature. -- -- 250 mA
Sleep mode -- 40 -- uA
Deep sleep mode -- 40 -- uA
RX -- 43 -- mA
T
NRESET
NRESET minimum
pulse duration -- 1 -- -- ms
V
NRESET
Low NRESET input low
level -- -- -- 0.9 V
V
NRESET
High NRESET input high
level Note: The mDot has
an internal pull-up
resistor. 2.1 -- -- V