參數(shù)資料
型號(hào): MCF5481CZP166
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 166.66 MHz, RISC PROCESSOR, PBGA388
封裝: 27 X 27 MM, 1 MM PITCH, PLASTIC, MS-034AAL-1, BGA-388
文件頁(yè)數(shù): 80/96頁(yè)
文件大?。?/td> 2006K
代理商: MCF5481CZP166
MOTOROLA
MCF548x Integrated Microprocessor Hardware Specifications
81
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Document Revision History
Figure 31. SDR Read Timing
A.9.2
DDR SDRAM AC Timing Characteristics
When using the DDR SDRAM controller the following timing numbers must be followed to properly latch
or drive data onto the memory bus. All timing numbers are relative to the four DQS byte lanes.
Table 30. DDR Clock Timing Specifications
Symbol
Characteristic
Min
Max
Unit
VMP
Clock output mid-point voltage
1.05
1.45
V
VOUT
Clock output voltage level
-0.3
SD_VDD +
0.3
V
VID
Clock output differential voltage (peak to peak swing)
0.7
SD_VDD +
0.6
V
VIX
Clock crossing point voltage
1.05
1.45
V
SDCLK0
SDCLK1
SDCSn,SDWE,
SDDM
SDDATA
SDADDR,
RAS, CAS
SDBA[1:0]
SD2
CMD
ROW
SD2
SD1
SD5
COL
WD1
WD2
WD3
WD4
SD10
3/4 MCLK
SDRQS
SDDQS
Delayed
SD11
SD8
Board Delay
SD9
Board Delay
SD7
tDQS
Reference
SDCLK
form
Memories
(Measured at Output Pin)
(Measured at Input Pin)
SD6
NOTE: Data driven from memories relative
to delayed memory clock.
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