PPC440GX-3FF533C AMCC [Applied Micro Circuits Corporation], PPC440GX-3FF533C Datasheet - Page 81

• Manufacturer Part Number: PPC440GX-3FF533C
• Description: Power PC 440GX Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

Revision 1.15 – August 30, 2007
AMCC
I/O Timing—DDR SDRAM T
Notes:
1. All of the DQS signals are referenced to MemClkOut0(0).
2. The T
3. To obtain adjusted values for lower clock frequencies, subtract 4.5 ns from the 166MHz values in the table and add 3/4 of the
Data Sheet
Clock Speed (MHz)
cycle time for the lower clock frequency (T
DS
166
166
166
166
166
166
166
166
166
200
200
200
200
200
200
200
200
200
values in the table include 3/4 of a cycle at the indicated clock speed.
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
Signal Name
DS
DS
- 4.5 + 0.75T
440GX – Power PC 440GX Embedded Processor
Minimum
4.902
4.872
4.842
4.855
4.832
4.867
4.825
4.880
4.826
3.660
3.672
3.664
3.660
3.671
3.666
3.666
3.658
3.662
CYC
).
T
DS
(ns)
Maximum
5.601
5.535
5.511
5.546
5.504
5.525
5.488
5.543
5.484
4.295
4.298
4.293
4.290
4.294
4.305
4.296
4.271
4.291
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