參數(shù)資料
型號: HYB25D512400AT
廠商: INFINEON TECHNOLOGIES AG
英文描述: CAP .0027UF 16V PPS FILM 0603 2%
中文描述: 512MB的雙倍數(shù)據(jù)速率SDRAM
文件頁數(shù): 54/90頁
文件大?。?/td> 3191K
代理商: HYB25D512400AT
HYB25D512[40/16/80]0B[E/F/C/T]
512Mbit Double Data Rate SDRAM
Functional Description
Data Sheet
54
Rev. 1.2, 2004-06
3.5.4
The Pre charge command is used to deactivate the open row in a particular bank or the open row in all banks. The
bank(s) will be available for a subsequent row access some specified time (
t
RP
) after the Pre charge command is
issued. Input A10 determines whether one or all banks are to be pre charged, and in the case where only one bank
is to be pre charged, inputs BA0, BA1 select the bank. When all banks are to be pre charged, inputs BA0, BA1 are
treated as “Don’t Care”. Once a bank has been pre charged, it is in the idle state and must be activated prior to
any Read or Write commands being issued to that bank.
Pre charge
Figure 30
Precharge Command
BA
HIGH
BA = bank address
(if A10 is Low, otherwise Don’t Care).
CK
CK
CKE
CS
RAS
CAS
WE
A10
BA0, BA1
Don’t Care
All Banks
One Bank
A0-A9, A11, A12
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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