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IC42S16400F-6TL 参数 Datasheet PDF下载

IC42S16400F-6TL图片预览
型号: IC42S16400F-6TL
PDF下载: 下载PDF文件 查看货源
内容描述: 1梅格位×16位× 4银行( 64兆位)同步动态RAM [1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM]
分类和应用: 存储内存集成电路光电二极管动态存储器时钟
文件页数/大小: 55 页 / 822 K
品牌: ISSI [ INTEGRATED SILICON SOLUTION, INC ]
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—ꢀ  
—ꢀ  
—ꢀ  
—ꢀ  
—ꢀ  
—ꢀ  
—ꢀ  
—ꢀ  
Active  
High-Z  
                                           
                                                
                                                      
                                                            
Hꢀ  
                                                                             
—ꢀ  
IS42S16400F  
IC42S16400F  
TRUTH TABLE – COMMANDS AND DQM OPERATION(1)  
FUNCTION  
CS  
Hꢀ  
Lꢀ  
RAS CAS  
WE DQM  
ADDR  
Xꢀ  
DQs  
COMMANDꢀINHIBITꢀ(NOP)ꢀ  
Xꢀ  
Hꢀ  
Lꢀ  
Xꢀ  
Hꢀ  
Hꢀ  
Lꢀ  
Xꢀ  
Hꢀ  
Hꢀ  
Hꢀ  
Lꢀ  
Xꢀ  
Xꢀ  
X
X
NOꢀOPERATIONꢀ(NOP)ꢀ  
Xꢀ  
ACTIVEꢀ(Selectꢀbankꢀandꢀactivateꢀrow)(3)ꢀ  
READꢀ(Selectꢀbank/column,ꢀstartꢀREADꢀburst)(4)  
WRITEꢀ(Selectꢀbank/column,ꢀstartꢀWRITEꢀburst)(4)ꢀ Lꢀ  
BURSTꢀTERMINATEꢀ Lꢀ  
PRECHARGEꢀ(Deactivateꢀrowꢀinꢀbankꢀorꢀbanks)(5)ꢀ Lꢀ  
Lꢀ  
Xꢀ  
Bank/Rowꢀ  
Bank/Colꢀ  
Bank/Colꢀ  
Xꢀ  
X
Lꢀ  
Hꢀ  
Hꢀ  
Hꢀ  
Lꢀ  
L/H(8)  
L/H(8)  
Xꢀ  
X
Lꢀ  
Valid  
Active  
X
Hꢀ  
Hꢀ  
Lꢀ  
Lꢀ  
Lꢀ  
Xꢀ  
Codeꢀ  
Xꢀ  
AUTOꢀREFRESHꢀorꢀSELFꢀREFRESH(6,7)  
Lꢀ  
Lꢀ  
Hꢀ  
Xꢀ  
X
(Enterꢀselfꢀrefreshꢀmode)  
LOADꢀMODEꢀREGISTER(2)ꢀ  
WriteꢀEnable/OutputꢀEnable(8)ꢀ  
WriteꢀInhibit/OutputꢀHigh-Z(8)ꢀ  
Lꢀ  
Lꢀ  
Lꢀ  
Lꢀ  
Xꢀ  
Lꢀ  
Op-Codeꢀ  
—ꢀ  
X
NOTES:  
1.ꢀ CKEꢀisꢀHIGHꢀforꢀallꢀcommandsꢀexceptꢀSELFꢀREFRESH.  
2. A0-A11 define the op-code written to the mode register.  
3.ꢀ A0-A11ꢀprovideꢀrowꢀaddress,ꢀandꢀBA0,ꢀBA1ꢀdetermineꢀwhichꢀbankꢀisꢀmadeꢀactive.  
4.ꢀ A0-A7ꢀ(x16)ꢀprovideꢀcolumnꢀaddress;ꢀA10ꢀHIGHꢀenablesꢀtheꢀautoꢀprechargeꢀfeatureꢀ(nonpersistent),ꢀwhileꢀA10ꢀLOWꢀdisablesꢀ  
autoꢀprecharge;ꢀBA0,ꢀBA1ꢀdetermineꢀwhichꢀbankꢀisꢀbeingꢀreadꢀfromꢀorꢀwrittenꢀto.  
5.ꢀ A10ꢀLOW:ꢀBA0,ꢀBA1ꢀdetermineꢀtheꢀbankꢀbeingꢀprecharged.ꢀA10ꢀHIGH:ꢀAllꢀbanksꢀprechargedꢀandꢀBA0,ꢀBA1ꢀareꢀ“Don’tꢀCare.”  
6.ꢀ AUTOꢀREFRESHꢀifꢀCKEꢀisꢀHIGH,ꢀSELFꢀREFRESHꢀifꢀCKEꢀisꢀLOW.  
7.ꢀ Internalꢀrefreshꢀcounterꢀcontrolsꢀrowꢀaddressing;ꢀallꢀinputsꢀandꢀI/Osꢀareꢀ“Don’tꢀCare”ꢀexceptꢀforꢀCKE.  
8.ꢀ ActivatesꢀorꢀdeactivatesꢀtheꢀDQsꢀduringꢀWRITEsꢀ(zero-clockꢀdelay)ꢀandꢀREADsꢀ(two-clockꢀdelay).  
6
Integrated Silicon Solution, Inc. — www.issi.com  
Rev. A  
03/19/08