参数资料
型号: CWMPCEVB5200BE
厂商: Freescale Semiconductor
文件页数: 11/72页
文件大小: 0K
描述: BOARD MPC5200B W/256MB
标准包装: 1
类型: MPU
适用于相关产品: MPC5200B
所含物品:
MPC5200B Data Sheet, Rev. 4
Freescale Semiconductor
19
Figure 6. Timing Diagram—Standard SDRAM Memory Write Timing
1.3.6.3
Memory Interface Timing-DDR SDRAM Read Command
The SDRAM Memory Controller uses a 1/4 period delayed MDQS strobe to capture the MDQ data. The 1/4 period delay value
is calculated automatically by hardware.
Table 20. DDR SDRAM Memory Read Timing
Sym
Description
Min
Max
Units
SpecID
tmem_clk
MEM_CLK period
7.5
ns
A5.15
tvalid
Control Signals, Address and MBA
valid after rising edge of MEM_CLK
—tmem_clk ×0.5 +0.4
ns
A5.16
thold
Control Signals, Address and MBA
hold after rising edge of MEM_CLK
tmem_clk × 0.5
ns
A5.17
datasetup
Setup time relative to MDQS
0.4
ns
A5.18
datahold
Hold time relative to MDQS
2.6
ns
A5.19
MEM_CLK
Control Signals
MDQ (Data)
MA (Address)
NOTE: Control Signals are composed of RAS, CAS, MEM_WE, MEM_CS, MEM_CS1 and CLK_EN
Active
NOP
WRITE
NOP
thold
Row
Column
MBA (Bank Selects)
datahold
datavalid
tvalid
thold
tvalid
thold
tvalid
DQM (Data Mask)
DMvalid
DMhold
相关PDF资料
PDF描述
0210490246 CABLE JUMPER 1.25MM .178M 18POS
0210490245 CABLE JUMPER 1.25MM .178M 18POS
0210390953 CABLE JUMPER 1MM .152M 25POS
RBC08DRYI-S734 CONN EDGECARD 16POS DIP .100 SLD
LGU2E471MELA CAP ALUM 470UF 250V 20% SNAP
相关代理商/技术参数
参数描述
CWMPCEVB5200BE 制造商:Freescale Semiconductor 功能描述:MPC5200B BOARD W/ 256MB
CWMPH1 功能描述:电线导管 In-Cabinet Horizontal Cable Manager Fron RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
CWMPH1Y 制造商:Panduit Corp 功能描述:PANDUIT
CWMPHF1 功能描述:电线导管 In-Cabinet Horizontal Cable Manager Fron RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
CWMPV2318 功能描述:电线导管 In-Cabinet Vertical Cable Manager 18 RU RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm