參數(shù)資料
型號: PPC440GX-3CF400C
廠商: APPLIEDMICRO INC
元件分類: 微控制器/微處理器
英文描述: Power PC 440GX Embedded Processor
中文描述: 32-BIT, 400 MHz, RISC PROCESSOR, CBGA552
封裝: 25 X 25 MM, CERAMIC, FBGA-552
文件頁數(shù): 81/93頁
文件大?。?/td> 794K
代理商: PPC440GX-3CF400C
440GX – Power PC 440GX Embedded Processor
AMCC
81
Revision 1.15 – August 30, 2007
Data Sheet
I/O Timing—DDR SDRAM T
DS
Notes:
1. All of the DQS signals are referenced to MemClkOut0(0).
2. The T
DS
values in the table include 3/4 of a cycle at the indicated clock speed.
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
cycle time for the lower clock frequency (T
DS
- 4.5 + 0.75T
CYC
).
Clock Speed (MHz)
Signal Name
T
DS
(ns)
Minimum
Maximum
166
DQS0
4.902
5.601
166
DQS1
4.872
5.535
166
DQS2
4.842
5.511
166
DQS3
4.855
5.546
166
DQS4
4.832
5.504
166
DQS5
4.867
5.525
166
DQS6
4.825
5.488
166
DQS7
4.880
5.543
166
DQS8
4.826
5.484
200
DQS0
3.660
4.295
200
DQS1
3.672
4.298
200
DQS2
3.664
4.293
200
DQS3
3.660
4.290
200
DQS4
3.671
4.294
200
DQS5
3.666
4.305
200
DQS6
3.666
4.296
200
DQS7
3.658
4.271
200
DQS8
3.662
4.291
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