參數(shù)資料
型號(hào)： EDS1232CATA-75
廠商： ELPIDA MEMORY INC
元件分類： DRAM
英文描述： 128M bits SDRAM
中文描述： 4M X 32 SYNCHRONOUS DRAM, 5.4 ns, PDSO86
封裝： PLASTIC, TSOP2-86
文件頁(yè)數(shù)： 38/55頁(yè)
文件大?。?/td> 564K
代理商： EDS1232CATA-75
EDS1232CABB, EDS1232CATA
Preliminary Data Sheet E0247E40 (Ver. 4.0)
38
Read with auto precharge to Write command interval
1. Different bank: When some banks are in the active state, the second write command (another bank) is executed.
However, DQM must be set High so that the output buffer becomes High-Z before data input. The internal auto-
precharge of one bank starts at the next clock of the second command.
CLK
Command
BS
DQ (output)
DQ (input)
CL = 2
CL = 3
READA
WRIT
in B0
in B1
in B2
in B3
BL = 4
bank0
ReadA
bank3
Write
Note: Internal auto-precharge starts at the timing indicated by " ".
DQM
High-Z
Read with Auto Precharge to Write Command Interval (Different bank)
2. Same bank: The consecutive write command from read with auto precharge (the same bank) is illegal. It is
necessary to separate the two commands with a bank active command.
Write with auto precharge to Read command interval
1. Different bank: When some banks are in the active state, the second read command (another bank) is executed.
However, in case of a burst write, data will continue to be written until one clock before the read command is
executed. The internal auto-precharge of one bank starts at 2 clocks later from the second command.
CLK
Command
BS
DQ (output)
DQ (input)
WRITA
READ
out B0
out B1
out B2
out B3
CL = 3
BL = 4
bank0
WriteA
bank3
Read
Note: Internal auto-precharge starts at the timing indicated by " ".
DQM
in A0
Write with Auto Precharge to Read Command Interval (Different bank)
2. Same bank: The consecutive read command from write with auto precharge (the same bank) is illegal. It is
necessary to separate the two commands with a bank active command.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDS1232CATA-75L 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits SDRAM
EDS1232ECBH-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits SDRAM
EDS1232ECBH-75-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits SDRAM
EDS1232ECBH-9A 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits SDRAM
EDS1232ECBH-9A-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M bits SDRAM
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