Electrical

Pin Definitions

   
Pin # Pin Function
1 USB DM USB Data -
2 USB DP USB Data +
3 Vin Power Supply
4 RxD UART Receive (host to 3DM-CV7)
5 TxD UART Transmit (3DM-CV7 to host)
6 GPIO3 Logic Level GPIO
7 GPIO1 Logic Level GPIO
8 GND Signal & Power Ground
9 GPIO2 Logic Level GPIO
10 GPIO4 Logic Level GPIO

 

See User GPIO for details on how to use the GPIO pins and supported features.

 

Absolute Maximum Ratings

Exposure to stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to the Absolute Maximum Ratings for extended periods may affect device reliability and lifetime. Absolute Maximum Ratings are stress ratings only and do not imply functional operation of the device under any conditions beyond those listed in Recommended Operating Conditions.

Parameter(1) Conditions Min Max Units
Power Supply Voltage (Vin)(2)   -12 +12 V
GPIO, RxD Voltage (3) Referenced to ground -0.7 +7 V
TxD Current   -10 +10 mA
Voltage on USB pins When device is operating 0 +5 V
Voltage on Chassis   -12 12 V

Notes:

  1. Reverse polarity and overvoltage protected. Operation is not guaranteed over this range.
  2. Input voltage in this range may be applied even when the device is powered off.

 

Recommended Operating Conditions

Stresses beyond the limits in Recommended Operating Conditions will likely result in the improper functioning of the device. The voltages in Recommended Operating Conditions represent voltages as measured at the pins; they do not account for voltage drops in the cable.

Specification(1) Min Typ Max Units
Power Supply Voltage (Vin) +3.2   +5.2 V
GPIO, RxD Input Voltage 0 0 to Vin 5.5 V

 

Power Requirements

Specification Typ Max Units
Power Consumption 0.230 0.280 W

 

Electrical Characteristics

Parameter(1) Conditions Min Typ Max Units
Power Consumption -40°C   205   mW
25°C   230  
85°C   280  
GPIO, TxD Output Low Voltage No Load   0.01 0.4 V
GPIO, TxD Output High Voltage 2.6 2.99  
GPIO, TxD Output Low Voltage 300 uA load   0.3 0.7 V
GPIO, TxD Output High Voltage 2.3 2.7  
GPIO Output Impedance     1k   Ω
GPIO, RxD Input Low Threshold   1.1     V
GPIO, RxD Input High Threshold       2.1
GPIO Input Pullup/Pulldown Resistance   30 40 50 kΩ
Over Voltage Threshold   5.45   6.15 V