ZHCS488K October 2011 – December 2018 AM3351 , AM3352 , AM3354 , AM3356 , AM3357 , AM3358 , AM3359
PRODUCTION DATA.
请参考 PDF 数据表获取器件具体的封装图。
Figure 7-41 shows the required placement for the DDR2 devices. The dimensions for this figure are defined in Table 7-49. The placement does not restrict the side of the PCB on which the devices are mounted. The ultimate purpose of the placement is to limit the maximum trace lengths and allow for proper routing space. For single-memory DDR2 systems, the second DDR2 device is omitted from the placement.
NO. | PARAMETER | MIN | MAX | UNIT |
---|---|---|---|---|
1 | X(2)(3) | 1750 | mils | |
2 | Y(2)(3) | 1280 | mils | |
3 | Y Offset(2)(3)(4) | 650 | mils | |
4 | Clearance from non-DDR2 signal to DDR2 keepout region(5)(6) | 4 | w |