RT1730
Functional Pin Description
Pin No.
A1
A2
A3
B1
B2
B3
C1
C2
C3
Pin Name
CC2
VBUS
VDD
VCONN
INT_N
SCL
CC1
GND
SDA
Pin Function
Type-C connector Configuration Channel (CC) pins. Initially used to determine
when an attach has occurred and what the orientation detected.
VBUS input pin for attach and detach detection when operating as an UFP port
(Device).
Input supply voltage.
Regulated input pin to be switched to correct CC pin as VCONN to power Type-C
full-featured cables and other accessories.
Active low and open drain type interrupt output used to prompt the processor to
read the registers.
I
2
C serial data signal to be connected to the I
2
C master.
Type-C connector Configuration Channel (CC) pins. Initially used to determine
when an attach has occurred and what the orientation detected.
Ground.
I
2
C serial data signal to be connected to the I
2
C master.
Functional Block Diagram
SCL
SDA
INT_N
I C Controller
Internal Bus
Voltage
Regulator
2
FIFO
VDD
Digital Interface
Register Block
VBUS
Detection
Physical Layer
Type-C Detection
& CC Switch
RP/RD Bank
VCONN
CC1
CC2
GND
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS1730-01 January 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
