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316-Lead Plastic Ball Grid Array [PBGA]
(B-316)
Dimensions shown in millimeters
a
23.20
23.00 SQ
22.80
A1 BALL PAD
CORNER
22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A1 BALL
PAD CORNER
19.85
19.50 SQ
19.30
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
BOTTOM VIEW
21.00
BSC SQ
TOP VIEW
1.00
BSC
3.50 MAX
DETAIL A
DETAIL A
2.50 MAX
3.00
0.25
0.30 MIN
SEATING
PLANE
0.70
0.60
0.50
BALL DIAMETER
COMPLIANT TO JEDEC STANDARDS MS-034-AAJ-1
COPLANARITY
0.20 NOM