User's Manual

LTE Module BEC CBRS-12 User Manual
22
USIM2_CLK 80 DO
Clock signal of
(U)SIM2 card
For 1.8V (U)SIM:
V
OL
max=0.4V
V
OH
min=1.45V
For 3.0V (U)SIM:
V
OL
max=0.4V
V
OH
min=2.3V
If (U)SIM2 interface
is unused, keep it
open.
USB Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
USB_VBUS 32 PI
USB connection
detection
Vmax=5.25V
Vmin=3.3V
Vnorm=5.0V
USB_DM 33 IO
USB 2.0
differential data
bus - minus
Comply with USB
2.0 standard
specifications.
Require differential
impedance of 90Ω.
USB_DP 34 IO
USB 2.0
differential data
bus - plus
USB_SS_
TX_M
37 AO
USB 3.0 super
speed
transmission -
minus
Comply with USB
3.0 standard
specifications.
Require differential
impedance of 90Ω.
USB_SS_
TX_P
38 AO
USB 3.0 super
speed
transmission - plus
USB_SS_
RX_P
40 AI
USB 3.0 super
speed receiving -
plus
USB_SS_
RX_M
41 AI
USB 3.0 super
speed receiving -
minus
USB_ID 36 DI OTG identification
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it
open.
OTG_PWR_
EN
143 DO OTG power control
V
OL
max=0.45V
V
OH
min=1.35V
SDIO Interface*
Pin Name Pin No. I/O Description DC Characteristics Comment
SD_VDD 46 PO
SD card
For 1.8V SD card: Either 1.8V or 3.0V