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Table 10: Pin Definition of USB Interface
Pin Name
Pin No.
USB_VBUS
41, 42
USB_DM
33
USB_DP
32
USB_ID
30
USB_SS_RX_P
171
USB_SS_RX_M
172
USB_SS_TX_P
174
USB_SS_TX_M
175
USBC_CC2
223
USBC_CC1
224
USB_SS_SEL
226
USB_OPT
217
USB_VBUS can be powered by USB power or adapter. It is used for USB connection detection and
power supply input for battery charging. Its input voltage ranges from 4.0V to 10.0V, and the typical value
is 5.0V. SC600Y&SC600T modules support charging management for a single cell Li-ion battery, but
varied charging parameters should be set for batteries with varied models or capacities. The maximum
charging current is up to 3.0A.
The module also supports USB On-The-Go (OTG) function, through using USB_ID pin to detect whether
the OTG device is attached: when USB_ID is kept open (high level by default), SC600Y&SC600T are in
USB slave mode; if USB_ID is connected to ground, it is in OTG mode and USB_VBUS is used to supply
power for peripherals with maximum output of 5V/1A.
The switch between Type-C and Micro USB is determined by USB_OPT of pin 217. If USB_OPT is
floating, It is only need to select Type-C. If USB_OPT connects to GND via 1K, It is only need to select
Micro USB .
SC600Y&SC600T_Hardware_Design
I/O
Description
Charging power input;
PI/PO
Power supply output for OTG device;
USB/charger insertion detection.
USB 2.0 USB differential data bus
IO
(minus)
USB 2.0 USB differential data bus
IO
(plus)
AI
USB ID detection
AI
USB 3.0 differential receive (plus)
AI
USB 3.0 differential receive (minus)
AO
USB 3.0 differential transmit (plus)
AO
USB 3.0 differential transmit (minus)
AI/
USB Type-C control configuration
AO
channel 2
AI/
USB Type-C control configuration
AO
channel 1
DO
USB Type-C switch control
AI
Type-C/ Micro USB select control
Smart LTE Module Series
SC600Y&SC600T Hardware Design
Comment
Vmax=10V
Vmin=4.0V
Vnorm=5.0V
Require differential
impedance of 90Ω
High level by default
Require differential
impedance of 90Ω
Float，select Type-C.
Connect 1K to GND,
select Micro USB.
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