參數(shù)資料
型號: EDD5108ADTA
廠商: Elpida Memory, Inc.
英文描述: 512M bits DDR SDRAM
中文描述: 512M比特DDR內(nèi)存
文件頁數(shù): 9/48頁
文件大小: 558K
代理商: EDD5108ADTA
EDD5108AFTA-5, EDD5116AFTA-5
Data Sheet E0741E20 (Ver. 2.0)
9
Timing Parameter Measured in Clock Cycle
Number of clock cycle
tCK
5ns
Parameter
Symbol
min.
max.
Unit
Write to pre-charge command delay (same bank)
tWPD
4 + BL/2
tCK
Read to pre-charge command delay (same bank)
tRPD
BL/2
tCK
Write to read command delay (to input all data)
tWRD
2 + BL/2
tCK
Burst stop command to write command delay
tBSTW
3
tCK
Burst stop command to DQ High-Z
tBSTZ
3
3
tCK
Read command to write command delay
(to output all data)
tRWD
3 + BL/2
tCK
Pre-charge command to High-Z
tHZP
3
3
tCK
Write command to data in latency
tWCD
1
1
tCK
Write recovery
tWR
3
tCK
DM to data in latency
tDMD
0
0
tCK
Mode register set command cycle time
tMRD
2
tCK
Self refresh exit to non-read command
tSNR
15
tCK
Self refresh exit to read command
tSRD
200
tCK
Power down entry
tPDEN
1
1
tCK
Power down exit to command input
tPDEX
1
tCK
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參數(shù)描述
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