W81181D Datasheet, PDF (10/18 Pages) Winbond – USB HUB CONTROLLER

Preliminary W81181D/AD
W81181AD
PIN
NUMBER
1
PAD NAME
VDD3V
2
VDDA
3
GNDA
4
VBUS
5
LEDOC4_
6
LEDOC3_
7
LEDOC2_
8
LEDOC1_
9
VDD
10
RESET
11
P3[3]/
INT1_
12
P1[0]/
SACK/
INDIV
13
P1[1]/
SSTB
14
LEDEN5_
15
LEDEN4_
16
LEDEN3_
17
LEDEN2_
18
48CLKEN_
19
LEDEN1_
20
GND
I/O
TYPE
Power1
Power1
Power0
IUD2T
IOU2P
IOU2P
IOU2P
IOU2P
Power1
IUD2T
IOUD2
IOUD2
IOUD2
IOU2P
IOU2P
IOU2P
IOU2P
IUD2
IOU2P
Power0
PIN FUNCTION
3.3V Regulator output. Supply voltage for all
transceivers.
Analog power.
Analog ground.
Input of upstream power status. On self-power
mode, connection should be controlled by VBUS
status.
Flag of port4 over-current. To drive LED directly
Flag of port3 over-current. To drive LED directly
Flag of port2 over-current. To drive LED directly
Flag of port1 over-current. To drive LED directly
Digital supply voltage.
Master reset input. Active high.
Normally, this pin is P33/INT1_ and used as bi-
directional serial data (SDATA) for embedded
function serial port.
Normally, this pin is P10 and used as bi-directional
serial data ACK (SACK) for embedded function
serial port. If no embedded function this pin is
INDIVIDUAL (default) or GANGED mode setting for
downstream power control.
Normally, this pin is P11 and used as bi-directional
serial data Strobe (SSTB) for embedded function
serial port.
Downstream port5 LED. Active low to drive
bright/blinking LED when port5 enable.
Downstream port4 LED. Active low to drive
bright/blinking LED when port4 enable.
Downstream port3 LED. Active low to drive
bright/blinking LED when port3 enable.
Downstream port2 LED. Active low to drive
bright/blinking LED when port2 enable.
High enable embedded DPLL (12 MHz to 48 MHz).
It should be kept to Low when using 48Mhz clock.
Downstream port1 LED. Active low to drive
bright/blinking LED when port1 enable.
Digital ground
PULL UP/
DOWN
-
-
-
-
O
O
O
O
-
-
U
U
U
O
O
O
O
U
O
-
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