Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
4 PIN DESCRIPTIONS
4.1 Package Diagram
Figure 49 (parts 1 and 2) shows the 503-pin Enhanced Plastic Ball Grid Array (EPBGA) package
used for the QRT. The package measurements are shown in millimeters.
Measurements are
shown in millimeters.
40.00 ± 0.20
Not drawn to scale.
26.00 MAX.
QRT
PM73487-PI
L2A0961
L_______B
Lyyww
0.60 ±0.10
1.14 ±0.125
2.98 Max.
0.86 ±0.15
NOTES:
1. “L_______B” is the wafer batch code.
2. “Lyyww” is the assembly date code.
3. Dimensions are for reference.
4. Controlling dimension: millimeter.
5. // = Parallelism tolerance.
6. If you need a measurement not shown in this figure, contact PMC-Sierra.
Figure 49. 503-Pin EPBGA Top and Side Views (Part 1 of 2)
55
PMC [ PMC-SIERRA, INC ]
