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FIBOCOM NL668-EAU-MiniPCIe-10 Hardware User Manual
Page 23 of 56
Figure 3-5 Button Reset Reference Circuit
3.3.1.2 RESET_N Control Timing
Figure 3-6 RESET_N Control Timing
Note:
RESET_N is a sensitive signal, so it is recommended to add a debouncing capacitor close to the
module. The PCB layout should be kept away from the RF interference and protected by Ground.
At the same time, avoid routing on PCB edge and surface (avoid module reset caused by ESD)
3.4 USB Interface
Module supports USB2.0 and is compatible with USB High-Speed (480Mbits/s) and USB Full-Speed
(12Mbits/s). Refer to “Universal Serial Bus Specification 2.0” for the time slot and electrical characteristics
of the module USB bus.
