w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 153

• Manufacturer Part Number: w83c554f
• Description: System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
• Manufacturer: Winbond Electronics Corp America

W83C554F
This chapter shows the dimensions of the W83C554F Enhanced SIO with PCI Arbiter chip.
WINBOND ELECTRONICS CORP. AMERICA
7.0 MECHANICAL DESCRIPTION
208L QFP (28X28 mm footprint 2.6mm)
52
1
Seating Plane
208
53
e
See Detail F
Symbol
A
A
A
b
c
D
e
H
H
L
L
y
E
H
1
2
D
E
1
D
D
c o n t r o l d i m e n s i o n s a r e i n m m
1.193
1.193
0.012
0.004
0.122
0.006
0.004
1.097
1.097
0.016
0.043
b
Min
Dimension in inch
0
0.127
0.008
0.006
1.102
1.102
0.020
1.205
1.205
0.020
Nom
0.051
y
0.145
0.132
0.010
0.010
1.107
1.107
0.024
1.217
1.217
0.028
0.059
0.004
Max
104
157
10
156
A
A
105
27.87
27.87
0.40
30.30
30.30
2
1
E
0.10
3.10
0.15
0.10
Min
0.30
1.10
Dimension in mm
0
A
H
E
Nom
28.00
28.00
30.60
30.60
3.23
0.20
0.15
0.50
0.50
1.30
28.13
28.13
30.90
30.90
Max
3.68
0.60
0.70
1.50
3.35
0.25
0.25
0.10
10
Mechanical Description
L
c
L
1
Detail F
151