Released
PMC-Sierra, Inc.
PM9311/2/3/5 ETT1™ CHIP SET
Data Sheet
PMC-2000164
ISSUE 3
ENHANCED TT1™ SWITCH FABRIC
Figure 61. Enhanced Port Processor (EPP) CBGA Package Dimensions - Bottom View
AE
AD
AC
AB
AA
Y
b
W
V
U
T
e
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
20 22 24
02 04 06 08 10 12 14 16 18
01 03 05 07 09 11 13 15 17 19 21 23 25
Pin A01 corner
Bottom View
Table 36. Enhanced Port Processor CBGA Mechanical Specifications
e =1.27 mm
Symbol
Units
Minimum
Nominal
Maximum
A
5.52
4.62
mm
mm
mm
mm
mm
mm
mm
mm
A1
A2
aaa
D
0.90
0.15
32.50
30.48
32.50
30.48
25 x 25
624
D1
E
E1
M
N
b
0.82
0.92
mm
NOTE: Ball alloy is 90/10 PbSn
222
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
PMC [ PMC-SIERRA, INC ]
