A10V20B-PL84C Datasheet, PDF (94/98 Pages) Actel Corporation – Highly Predictable Performance with 100 Automatic Placement and Routing

Package Mechanical Drawings (continued)
257-Pin CPGA
Top View
0.105" ± 0.012"
0.100" BSC
0.018" ± 0.002"
0.05" ± 0.005"
1.970" ± 0.015" square
0.180" ± 0.010"
0.05" ± 0.01"
Y
X
V
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Bottom View
1.800" BSC
Side View
Notes:
1. All dimensions are in inches unless otherwise stated.
2. BSC—Basic Spacing between Centers. This is a theoretical true position dimension and so has no tolerance.
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