PPC440GX-3FF533C AMCC [Applied Micro Circuits Corporation], PPC440GX-3FF533C Datasheet - Page 82

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

440GX – Power PC 440GX Embedded Processor
82
I/O Timing—DDR SDRAM T
Notes:
1. T
2. To obtain adjusted T
3. To obtain adjusted T
Clock Speed (MHz)
subtract T
T
SK
SK
is referenced to MemClkOut0(0). T
minimum at 166MHz (0.25T
166
166
166
166
166
166
166
200
200
200
200
200
200
200
SK
maximum at 166MHz (0.75T
MemAddr00:12
BA0:1
BankSel0:3
ClkEn0:3
CAS
RAS
WE
MemAddr00:12
BA0:1
BankSel0:3
ClkEn0:3
CAS
RAS
WE
SA
HA
Signal Name
values for lower clock frequencies, use 3/4 of the cycle time for the lower clock frequency and
values for lower clock frequencies, use 1/4 of the cycle time for the lower clock frequency and add
CYC
SK
+ T
SA
, T
SK
CYC
and T
min).
SA
Minimum
- T
-0.283
-0.286
-0.270
-0.280
-0.270
-0.263
-0.280
, and T
0.184
0.439
0.249
0.344
0.319
0.373
0.393
HA
SK
are referenced to MemClkOut0(90).
max).
T
HA
SK
(ns)
Maximum
0.592
0.683
0.779
0.724
0.561
0.683
0.639
0.307
0.353
0.321
0.298
0.294
0.311
0.288
Revision 1.15 – August 30, 2007
Minimum
T
SA
3.908
3.817
3.721
3.776
3.939
3.817
3.816
3.443
3.397
3.429
3.452
3.456
3.439
3.462
(ns)
Data Sheet
Minimum
T
HA
1.684
1.939
1.749
1.844
1.819
1.873
1.893
0.967
0.964
0.980
0.970
0.980
0.987
0.970
(ns)
AMCC