參數(shù)資料
型號(hào): PPC440SP
廠商: Applied Micro Circuits Corp.
英文描述: PowerPC 440SP Embedded Processor
中文描述: 嵌入式處理器的PowerPC 440SP
文件頁(yè)數(shù): 79/85頁(yè)
文件大小: 615K
代理商: PPC440SP
PowerPC 440SP Embedded Processor
Revision 1.23 - Sept 26, 2006
Data Sheet
AMCC Proprietary
79
DDR SDRAM Clock to Write DQS Timing—T
DS
Note 1:
All of the DQS signals are referenced to MemClkOut.
Note 2:
Clock speed is 333 MHz.
Note 3:
The TDS values in the table include 1.5
×
3ns cycle at 333 MHz (3 ns
×
1.5 = 4.5 ns).
Note 4:
To obtain adjusted values for lower clock frequencies, subtract 4 ns from the values in the following table
and add
×
1.5 of the cycle time for the lower clock frequency (T
DS
- 4.5 + 1.5 T
CYC
).
DDR SDRAM Write Data to DQS Timing—T
SD and
T
HD
Note 1:
T
SD
and T
HD
are measured under worst-case conditions.
Note 2:
Clock speed for the values in the following table is 333 MHz.
Table 18. DDR SDRAM Clock to Write DQS Timing—T
DS
Signal Name
T
DS
(ns)
Minimum
Maximum
DQS0
4.76
5.07
DQS1
4.78
5.09
DQS2
4.78
5.10
DQS3
4.76
5.07
DQS4
4.79
5.11
DQS5
4.80
5.13
DQS6
4.81
5.11
DQS7
4.79
5.11
DQS8
4.77
5.07
Table 19. DDR SDRAM Write Data to DQS Timing—T
SD
and T
HD
Signal Name
Reference Signal
T
SD
(ns)
T
HD
(ns)
MemData00:07, DM0
DQS0
0.58
0.64
MemData08:15, DM1
DQS1
0.62
0.55
MemData16:23, DM2
DQS2
0.62
0.60
MemData24:31, DM3
DQS3
0.63
0.57
MemData32:39, DM4
DQS4
0.68
0.54
MemData40:47, DM5
DQS5
0.67
0.52
MemData48:55, DM6
DQS6
0.62
0.61
MemData56:63, DM7
DQS7
0.65
0.55
ECC0:7, DM8
DQS8
0.63
0.61
相關(guān)PDF資料
PDF描述
PPC440SP-AFC533C PowerPC 440SP Embedded Processor
PPC440SP-AFC667C PowerPC 440SP Embedded Processor
PPC440SP-ANC533C PowerPC 440SP Embedded Processor
PPC440SP-ANC667C PowerPC 440SP Embedded Processor
PPC440SP-RFC533C PowerPC 440SP Embedded Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PPC440SP-3FB533C 制造商:AMCC 功能描述: 制造商:AppliedMicro 功能描述:
PPC440SP-AFC533C 制造商:AMCC 功能描述:AMCPPC440SP-AFC533C POWER PC
PPC440SP-AFC667C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SP Embedded Processor
PPC440SP-ANC533C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SP Embedded Processor
PPC440SP-ANC667C 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:PowerPC 440SP Embedded Processor