参数资料
型号: V58C2256324SAH-40
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 8M X 32 DDR DRAM, 0.6 ns, PBGA144
封装: LEAD FREE, BGA-144
文件页数: 4/37页
文件大小: 557K
代理商: V58C2256324SAH-40
12
V58C2256324SA Rev. 1.0 November 2003
ProMOS TECHNOLOGIES
V58C2256324SA
PrechargeCommand
Thiscommandisusedtoprechargeorcloseabankthathasbeenactivated.PrechargeisinitiatedbyissuingaPrechargecommandat
therisingedgeoftheclock.ThePrechargecommandcanbeusedtoprechargeeachbankrespectivelyorallbankssimultaneously.
TheBankaddressesBA0andBA1selectthebanktobeprecharged.AfteraPrechargecommand,theanalogdelaytRPhastobemet
untilanewActivatecommandcanbeinitiatedtothesamebank.
Table
PrechargeControl
PrechargeCommandTiming
A8/AP
BA1
BA0
Precharged
000Bank
001Bank
010
BankCOnly
011
BankDOnly
1X
X
AllBanks
Clk
Command
ACT
t
RC
Addresses
BankA
PRE
NOP
ACT
BankA
RowAdd
t
RAS
t
RP
NOP
BankA
RowAdd
AOnly
BOnly
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