Data Sheet

Thundercomm TurboX C40x SOM Datasheet
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3.3. Output power
The SOM provides power supply for external device.
Table 3-4. Output power
Function
Default
voltage(V)
Programmable
range(V)
Rated
current(mA)
Default ON Expected use
VREG_L6_1P8 +1.8 - 100 Y 1.8V IO pull up voltage;
VREG_L11_SDC2 +2.95 +1.8--+3.3 100 Y
Power output for SD card data
pull up
VREG_L7_1P8 +1.8 +1.7--+1.89 100 N 1.8V LDO power output,100mA
VREG_L13_3P3 +3.3 +1.8--+3.3 100 N 3.3V LDO power output,100mA
3.4. Digital-logic characteristics
The digital I/O's performance depends on its pad type, usage, and power supply voltage.
The SOM IO voltage level is the same with P3 except the SD card and analog input/output.
The I2C, USB, MIPI and UART comply with the standards, and additional specifications are not required.
All other digital I/Os require performance specifications and are organized within this section.
3.4.1. Digital GPIO characteristics
The GPIO ports are digital I/Os that can be programmed for a variety of configurations. General performance
specifications for are the different configurations.
The following table shows the digital GPIO characteristics:
Table 3-5. Digital IO voltage performance
Parameter Description Min Max Units
VIH High-level input voltage, CMOS/Schmitt, 0.65* P3 - V
VIL Low-level input voltage, CMOS/Schmitt, - 0.35* P3 V
VSHYS Schmitt hysteresis voltage 100 - mV
VOH High-level output voltage, CMOS P3-0.45 - V
VOL Low-level output voltage, CMOS - 0.45 V
RPULL-UP Pull-up and Pull-down resistance 55 390 KΩ
Rk Keeper resistance 30 150 KΩ
nicholas.wang_thundercomm.com
2022-07-21 2:34:47 AM CST