參數(shù)資料
型號(hào)： M2V12D20TP-75L
廠商： Mitsubishi Electric Corporation
英文描述： 512M Double Data Rate Synchronous DRAM
中文描述： 512M雙數(shù)據(jù)速率同步DRAM
文件頁(yè)數(shù)： 34/38頁(yè)
文件大小： 754K
代理商： M2V12D20TP-75L
MITSUBISHI
ELECTRIC
-34-
M2S12D20/ 30TP -75, -75L, -10, -10L
512M Double Data Rate Synchronous DRAM
Feb. '02
MITSUBISHI LSIs
DDR SDRAM (Rev.1.1)
MITSUBISHI ELECTRIC
[Initialize and Mode Register sets]
Command
/CLK
CLK
EMRS
PRE
NOP
MRS
PRE
AR
AR
MRS
ACT
Code
Code
Xa
Code
Xa
1 0
Xa
A0-9,11-12
A10
Code
1
BA0,1
DQS
DQ
1
0 0
0 0
Code
tMRD
tMRD
tRP
tRFC
tRFC
tMRD
Mode Register Set,
Reset DLL
Extended Mode
Register Set
[AUTO REFRESH]
Auto-refresh cycle is initiated with a REFA(/CS=/RAS=/CAS=L,/WE=CKE=H) command.
The refresh address is generated internally. 8192 REFA cycles within 64 ms refresh 512 Mbits
memory cells. The auto-refresh is performed on 4 banks concurrently. Before performing an auto
refresh, all banks must be in the idle state. The minimum interval between auto-refreshes is tRFC.
No command is allowed within tRFC time after the REFA command.
Auto-Refresh
/CLK
CLK
/RAS
CKE
/CS
/CAS
/WE
A0-12
BA0,1
NOP or DESELECT
tRFC
Auto Refresh on All Banks
Auto Refresh on All Banks
CKE
Initialize and MRS
相關(guān)PDF資料
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