參數(shù)資料
型號(hào)： PPC440SPE-RGB533C
廠商： APPLIEDMICRO INC
元件分類： 微控制器/微處理器
英文描述： PowerPC 440SPe Embedded Processor
中文描述： 32-BIT, 533 MHz, RISC PROCESSOR, PBGA675
封裝： 27 X 27 MM, 1 MM PITCH, PLASTIC, FCBGA-675
文件頁數(shù)： 75/80頁
文件大?。?/td> 572K
代理商： PPC440SPE-RGB533C
PowerPC 440SPe Embedded Processor
Revision 1.23 - Sept 21, 2006
Preliminary Data Sheet
AMCC Proprietary
75
In the following examples, the data strobes (DQS) and the data are shown to be coincident. There is actually a
slight skew as specified by the SDRAM specifications, and there can be additional skew due to loading and signal
routing. It is recommended that the signal length for all of the eight DQS signals be matched.
Figure 10. DDR SDRAM Memory Data and DQS
Table 20. DDR SDRAM I/O Read Timing—T
SD
and T
HD
Notes:
1. T
SD
and T
HD
are measured under worst case conditions.
2. Clock speed for the values in the table is 333.33MHz.
3. The time values in the table include 1/4 of a cycle at 166MHz (3ns x 0.25 = 0.75 ns).
4. To obtain adjusted T
SD
and T
HD
values for lower clock frequencies, subtract 0.75 ns from the values in the table and add 1/4
of the cycle time for the lower clock frequency (e.g., T
SD
- 0.75 + 0.25T
CYC
).
Signal Names
Reference Signal
Read Data vs DQS Set up
T
SD
(ns)
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Read Data vs DQS Hold
T
HD
(ns)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
MemData00:07
MemData08:15
MemData16:23
MemData24:31
MemData32:39
MemData40:47
MemData48:55
MemData56:63
ECC0:7
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
DQS
MemData
T
SD
T
HD
相關(guān)PDF資料
PDF描述
PPC440SPE-RGB667C PowerPC 440SPe Embedded Processor
PPC440SPE-RNB533C PowerPC 440SPe Embedded Processor
PPC440SPE-RNB667C PowerPC 440SPe Embedded Processor
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PPC440SPE-RGB667C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SPe Embedded Processor
PPC440SPE-RNB533C 制造商:AppliedMicro 功能描述:MPU 440SPe RISC 16-Bit 0.13mm 533MHz 1.5V/3.3V 675-Pin FCBGA Tray 制造商:AMCC 功能描述:MPU 440SPE RISC 16BIT 0.13MM 533MHZ 1.5V/3.3V 675FCBGA - Trays
PPC440SPE-RNB667C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SPe Embedded Processor
PPC440SP-RFC533C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SP Embedded Processor
PPC440SP-RFC667C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SP Embedded Processor
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