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i.MX8M SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.9
Other Features
2.9.1
Fan Header
The i.MX8M SMARC SOM supports a Fan Header to connect cooling Fan if required. This Fan Header (J2) is physically
located at the top of the board as shown below.
Figure 4: Fan Header
Number of Pins
- 2
Connector Part
- 0530480210 from Molex
Mating Connector
- 51021-0200 from Molex
Compatible FAN (Example) - AFB0505MB from Delta Electronics
Table 5: FAN Header Pin Assignment
Pin No
Signal Name
Signal Type/
Termination
Description
1
VCC_5V
O, Power
+5V Power output to FAN.
2
GND
Power
Ground.
2.9.2
RTC Controller
The i.MX8M SMARC SOM
by supports external RTC Controller “PCF85263AT/AJ”
using I2C1 interface. In SOM power
off condition, this device will take power from SAMRC Edge (VDD_RTC) coin cell power input (Pin S147) and continues
to keep the current date & time.