參數資料
型號: W972GG8JB-25
廠商: WINBOND ELECTRONICS CORP
元件分類: DRAM
英文描述: 256M X 8 DDR DRAM, 0.4 ns, PBGA60
封裝: 11 X 11.50 MM, ROHS COMPLIANT, WBGA-60
文件頁數: 30/86頁
文件大?。?/td> 1466K
代理商: W972GG8JB-25
W972GG8JB
Publication Release Date: Feb. 18, 2011
- 36 -
Revision A02
8.5
Simplified Stated Diagram
OCD
calibration
Initialization
Sequence
Self Refreshing
Refreshing
Precharge
Power
Down
Activating
Idle
All banks
Precharged
Setting
MR,EMR (1)
EMR (2)
EMR (3)
Active
Power
Down
Bank
Active
Reading
Writing
with
Auto-precharge
Precharging
Reading
with
Auto-precharge
(E)MRS
REF
SELF
CKEH
CKEL
CKEH
ACT
PRE, PREA
Read
CKEL
CKEH
CKEL
Write
WRITA
READA
Write
READA
CKEL
Autoomatic Sequence
Command Sequence
Read
CKEL
PRE
CKEL
Write
Read
CKEL
PRE, PREA
WRITA
CKEL = CKE LOW, enter Power Down
CKEH = CKE HIGH, exit Power Down
CKEH = CKE HIGH, exit Self Refresh
ACT = Activate
WRITA = Write with Auto-precharge
READA = Read (with Auto-precharge
PREA = Precharge All
(E)MRS = (Extended) Mode Register Set
SELF = Enter Self Refresh
REF = Refresh
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