TUSB322I Datasheet, PDF (3/37 Pages) Texas Instruments – Configuration Channel Logic and Port Control

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5 Pin Configuration and Functions
RWB Package
12-Pin X2QFN
Top View
VBUS_DET 3
DIR 4
ADDR 5
INT_N/OUT3 ⁶
2
1
12 _VDD
11 _{EN_N}
10 GND
78
9 ^ID
TUSB322I
SLLSEO5 – OCTOBER 2015
PIN
NAME
NO.
CC1
1
CC2
2
VBUS_DET
3
DIR
4
ADDR
5
INT_N/OUT3
6
SDA/OUT1
7
SCL/OUT2
8
ID
9
GND
10
EN_N
11
V_DD
12
Table 2. Pin Functions
I/O
DESCRIPTION
I/O
Type-C configuration channel signal 1
I/O
Type-C configuration channel signal 2
I
5-V to 28-V V_BUS input voltage. V_BUS detection determines UFP attachment. One 900-kΩ
external resistor required between system V_BUS and VBUS_DET pin.
O
DIR of plug. The open drain output indicates the detected plug orientation: Type-C plug
position 2 (H); Type-C plug position 1 (L).
Tri-level input pin to indicate I²C address or GPIO mode:
H - I²C is enabled and I²C 7-bit address is 0x67.
I
NC - GPIO mode (I²C is disabled)
L - I²C is enabled and I²C 7-bit address is 0x47.
ADDR pin should be pulled up to V_DD 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
O
output in I²C control mode and is an active low interrupt signal for indicating changes in I²C
registers. When used as OUT3, the pin is in audio accessory detect in GPIO mode: no
detection (H), audio accessory connection detected (L).
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. When in GPIO mode (ADDR pin is NC), this pin is
I/O
an open drain output for communicating Type-C current mode detect when the TUSB322I
device is in UFP mode: default current mode detected (H); medium or high current mode
detected (L).
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. When in GPIO mode (ADDR pin is NC), this pin is
I/O
an open drain output for communicating Type-C current mode detect when the TUSB322I
device is in UFP mode: default or medium current mode detected (H); high current mode
detected (L).
O
Open drain output; asserted low when the CC pins detect device attachment when port is a
source (DFP), or dual-role (DRP) acting as source (DFP).
G
Ground
I
EN_N. Active low enable.
P
Positive supply voltage
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