AN2826 Freescale Semiconductor / Motorola, AN2826 Datasheet - Page 17

• Manufacturer Part Number: AN2826
• Description: DDR-SDRAM Layout Considerations for MCF547x/8x Processors
• Manufacturer: Freescale Semiconductor / Motorola

performance, however, does mean that the system designer must pay particular attention to their PCB
layout, as detailed above.
The overall gains made by using DDR SDRAM far outweigh the extra care that needs to be taken during
PCB design. DRAM memory, in various modes of operation, will continue to lead the memory
price/performance roadmap driven by the PC market. The embedded system designer can currently take
advantage of this by utilizing DDR SDRAM memory in their embedded system design.
5
Table 2
Table 3
6
Table 4
Freescale Semiconductor
provides a list of Freescale references used throughout this application note.
provides a non-Freescale set of references used throughout this application note.
provides a document revision history for this application note.
References
Document Revision History
MCF5475RM/D
MCF5485RM/D
Document
Freescale
CFPRM/D
Rev. No.
Number
0
DDR-SDRAM Layout Considerations for MCF547x/8x Processors, Rev. 1
Document
JESD79C
Number
ColdFire Family Programmer's Reference Manual
Table 4. Document Revision History
Table 3. Non-Freescale References
MCF5475/4/3/2/1/0 Reference Manual
MCF5585/4/3/2/1/0 Reference Manual
JEDEC DDR SDRAM spec.
Substantive Change(s)
Table 2. References
EIA/JESD8-9
Initial Release
Title
Title
March 2003
Revision
Date of Release
June 2004
Revision
1.2
1.1
2
References
17