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a
484-Ball Plastic Ball Grid Array [PBGA]
(B-484)
Dimensions shown in millimeters
19.10
19.00
18.90
1.10
BSC
19.10
19.00
18.90
17.05
16.95
16.85
22 20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
16.80
BSC
SQ
0.80
BSC
SQ
BALL
PITCH
1.10
BSC
17.05
16.95
16.85
19.10
19.00 SQ
18.90
TOP VIEW
2.50 MAX
BOTTOM VIEW
DETAIL A
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETERS.
2. THE ACTUAL POSITION OF THE BALL GRID IS WITHIN 0.25mm OF ITS IDEAL
POSITION RELATIVE TO THE PACKAGE EDGES.
3. THE ACTUAL POSITION OF EACH BALL IS WITHIN 0.10mm OF ITS IDEAL
POSITION RELATIVE TO THE BALL GRID.
4. CENTER DIMENSIONS ARE NOMINAL.
1.30 MAX
0.65
0.55
0.45
SEATING PLANE
BALL DIAMETER
0.55
0.50
0.45
DETAIL A
0.40 MIN
0.20 MAX