HD3SS3220_15 Datasheet, PDF (4/43 Pages) Texas Instruments – HD3SS3220 USB Type-C DRP Port Controller with SuperSpeed 2:1 MUX

HD3SS3220
SLLSES1 – DECEMBER 2015
NAME
TX1n
TX1p
RX2n
RX2p
TX2n
TX2p
PIN
NO.
16
17
18
19
20
21
ADDR
22
INT_N/OUT3
23
VCONN_FAU
LT_N
24
SDA/OUT1
25
SCL/OUT2
26
ID
27
ENn_CC
29
VDD5
30
Thermal Pad
–
Pin Functions (continued)
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I/O
DESCRIPTION
I/O
Type-C Port - USB SuperSpeed differential Signal TX1 negative
I/O
Type-C Port - USB SuperSpeed differential Signal TX1 positive
I/O
Type-C Port - USB SuperSpeed differential Signal RX2 negative
I/O
Type-C Port - USB SuperSpeed differential Signal RX2 positive
I/O
Type-C Port - USB SuperSpeed differential Signal TX2 negative
I/O
Type-C Port - USB SuperSpeed differential Signal TX2 positive
Tri-level input pin to indicate I²C address or GPIO mode:
H (connect to VDD5) - I²C is enabled and I2C 7-bit address is 0x67.
I
NC - GPIO mode (I2C is disabled)
L (connect to GND) - I²C is enabled and I2C 7-bit address is 0x47.
ADDR pin should be pulled up to VDD if high configuration is desired
The INT_N/OUT3 is a dual-function pin.
When used as the INT_N, the pin is an open drain output in I²C control mode and is an
O
active low interrupt signal for indicating changes in I²C registers.
When used as OUT3, the pin is in audio accessory detect in GPIO mode:
H - no detection, and
L - audio accessory connection detected.
O
Open drain output. Asserted low when VCONN overcurrent detected.
The SDA/OUT1 is a dual-function pin.
When I2C is enabled (ADDR pin is high or low), this pin is the I²C communication data
signal.
I/O
When in GPIO mode (ADDR pin is NC), this pin is an open drain output for communicating
Type-C current mode detect when the device is in UFP mode:
H – Default (900 mA) current mode detected, and
L – Medium (1.5 A) or High (3 A) Current Mode detected.
The SCL/OUT2 is a dual function pin.
When I²C is enabled (ADDR pin is high or low), this pin is the I²C communication clock
signal.
I/O
When in GPIO mode (ADDR pin is NC), this pin is an open drain output for communicating
Type-C current mode detect when the device is in UFP mode:
H – Default or Medium current mode detected, and
L – High current mode detected.
O
Open drain output. Asserted low when CC pin detected device attachment when port is a
source (DFP), or dual-role (DRP) acting as source (DFP).
I
Enable signal for CC controller. Enable is active low.
P
5-V Power supply
–
The thermal PAD must be connected to GND, see the Thermal Pad connection techniques
(SLMA002).
4
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