
USB
Type-C and Power Delivery
UM2191
8/55
DocID030479 Rev 2
Figure 4: USB Type-C receptacle pinout
Table 1: USB Type-C pinout description
Pin
Receptacle
signal
Plug
signal
Description
Comment
A1
GND
GND
Ground return
Can be up to 5 A split into
four pins
A2
TX1+
TX1+
USB3.1 data lines or Alternate
10-Gbyte TX differential
pair in USB 3.1
A3
TX1-
TX1-
A4
V
BUS
V
BUS
Bus power
Max power is 100 W (20 V
at 5 A) split into four pins
A5
CC1 or V
CONN
CC
Configuration channel or power for
active or electronically marked
cable
In VCONN configuration,
max. power is 1 W
A6
D+
D+
USB2.0 datalines
-
A7
D-
D-
-
A8
SBU1
SBU1
Sideband Use (SBU)
Alternate mode only
A9
V
BUS
V
BUS
Bus power
Max power is 100 W split
into four pins
A10
RX2-
RX2-
USB3.1 datalines or Alternate
10-Gbyte RX differential
pair in USB 3.1
A11
RX2+
RX2+
A12
GND
GND
Ground return
Can be up to 5 A split into
four pins
B1
GND
GND
Ground return
Can be up to 5 A split into
four pins
B2
TX2+
TX2+
USB3.1 datalines or Alternate
10-Gbyte RX differential
pair in USB 3.1
B3
TX2-
TX2-
B4
V
BUS
V
BUS
Bus power
Max power is 100 W split
into four pins
B5
CC2 or V
CONN
V
CONN
Configuration channel or power for
active or electronically marked
cable
In V
CONN
configuration,
max. power is 1 W
B6
D+
-
USB2.0 datalines
-
B7
D-
-
-
B8
SBU2
SBU2
Sideband Use (SBU)
Alternate mode only
B9
V
BUS
V
BUS
Bus power
Max power is 100 W split
into four pins