Users Manual Part 1

SIM8260A_Hardware Design_V1.05
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Figure 19: Type-C USB reference circuit with CC detector
Figure 20: USB3.1 reference circuit
Table 20: Definition of USB interface
Pin name
Pin
no.
Pin
characteristics
Functional description
Comment
USB_VBUS
C9
AI
USB VBUS detection
Not support charge
USB_HS_DP
B6
AIO
Differential USB
bi-directional data plus
Required 85Ω
differential
impedance
Compliant with USB
2.0 standard
specifications
USB_HS_DM
A5
AIO
Differential USB
bi-directional data minus
USB_SS_TX_P
A13
AO
USB3.1 super-speed
transmit data plus
Required 85Ω
differential
Impedance
Compliant with USB
3.1 standard
specifications
USB_SS_TX_M
B14
AO
USB3.1 super-speed
transmit data minus
USB_SS_ RX_P
B10
AI
USB3.1 super-speed
receive data plus
USB_SS_RX_M
A9
AI
USB3.1 super-speed
receive data minus
USB_ID
C11
DI
P3
USB ID
Standard software
not supported
OTG_EN
D10
DO
P3
USB OTG power supply
DC-DC enable signal