AU6254 Datasheet, PDF (9/30 Pages) List of Unclassifed Manufacturers – USB2.0 Hub Controller

Table 3.1 48 Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Pin Name
PVDD
XSCO
XSCI
PVSS
AVSS
DP2_DM
DP2_DP
AVDD
AVSS
DP3_DM
DP3_DP
DP4_DM
DP4_DP
AVDD
V18
VDDH
VSSH
BUS_PWREDN
EEPENABLE
E2PCLK
E2PDAT
VSS
VDD
24
GANG_PWRUP
25
GANG_OVRCUR
26
DP4_LEDAM
I/O
Power
O
I
Power
Power
I/O
I/O
Power
Power
I/O
I/O
I/O
I/O
Power
Power
Power
Power
I
I
I/O
I/O
Power
Power
O
I
O
Description
PLL power (3.3V)
Oscillator output 12MHz Crystal
Oscillator input 12MHz Crystal
PLL GND
UTMI GND
Port2 USB differential data bus D-
Port2 USB differential data bus D+
UTMI Power
UTMI GND
Port3 USB differential data bus D-
Port3 USB differential data bus D+
Port4 USB differential data bus D-
Port4 USB differential data bus D+
UTMI Power
Voltage regulator output 1.8V
Voltage regulator input 3.3V
IO GND
1' = Self Powered
'0' = Bus Powered
EEPROM Enable
'0' = Use internal ROM
'1' = Use EEP contents
EEP Clock; with internal pull up resistor; open
drain output.
EEP Data; with internal pull up resistor; open
drain output.
Core GND
Core Power 1.8V
Gang PowerEnable; open collector output
(require external pull up resistor to properly
control power switch)
'0' = power on
'1' = power off
Gang Overcurrent; with internal pull up
resistor; 8ms delay filter
'0' = overcurrent
'1' = not overcurrent
Port4 Amber LED indicator; with internal pull
up resistor; open collector output.
'0' = LED on (Error condition)
'1' = LED off
AU6254 USB2.0 Hub Controller V1.00W
Official Release_ Public
Page 9 of 30