GL423 Genesys Logic, GL423 Datasheet - Page 19

• Manufacturer Part Number: GL423
• Description: USB 2.0 +sd/mmc-controller Combo Solution
• Manufacturer: Genesys Logic

4.6 PAD/PIN Descripton
4.6.1 USB Interface
QFN56
©2000-2006 Genesys Logic Inc. - All rights reserved.
Pin#
NC
NC
46
47
48
49
50
51
52
53
53
53
54
55
56
-
VFBG
Pin#
A54
NC
NC
C2
C3
D1
D2
D3
E3
E3
E3
E3
E3
E1
E2
F1
-
Pin Name
AGND
AGND
AGND
AGND
AGND
AVDD
AVDD
AVDD
RREF
DM
XO
DP
XI
-
GL422/GL423 USB 2.0 +SD/MMC-controller Combo Solution
Pad#
100
101
102
103
104
105
106
107
108
109
110
111
112
Table 4.1- USB Interface
96
97
98
99
-
Pad Name
CUTCELL
AGND2
AGND1
AGND3
DGND2
DGND1
DVDD1
AVDD2
AVDD1
AVDD3
AVDD2
AVSS2
VBUS
RREF
DM
XO
DP
XI
Type
A
O
B
B
P
P
P
P
P
P
P
P
P
P
P
P
I
-
Analog 3.3V power
(Double Bonding)
Analog 3.3V power
(Double Bonding)
Reference resistor, normal 680ohm
(1%) between RREF and GND
Analog ground
(Double Bonding)
Analog ground
(Double Bonding)
USB D-
USB D+
Analog 3.3V power
Analog ground
(No Bonding)
Digital ground.
(Tri-bonding)
Digital ground.
(Tri-bonding)
Digital power
(No Bonding)
Analog ground
(Tri-bonding)
Crystal driver input
Crystal driver output
Analog 3.3V power
(Double Bonding)
(No Bonding)
Description
Page 19