參數(shù)資料
型號(hào)： HB52F169E1
廠商： Hitachi,Ltd.
英文描述： 128 MB Registered SDRAM DIMM(128 MB 寄存同步DRAM DIMM)
中文描述： 128 MB的注冊(cè)SDRAM的內(nèi)存（128 MB的寄存同步的DRAM內(nèi)存）
文件頁(yè)數(shù)： 37/57頁(yè)
文件大小： 870K
代理商： HB52F169E1
HB52F169E1-75F
37
READ to WRITE Command Interval (1)
READ to WRITE Command Interval (2)
2. Same bank, different ROW address:
When the ROW address changes, consecutive write commands
cannot be executed; it is necessary to separate the two commands with a precharge command and a bank-
active command.
3. Different bank:
When the bank changes, the write command can be performed after an interval of no less
than 1 clock, provided that the other bank is in the bank-active state. However, DQMB must be set High so
that the output buffer becomes High-Z before data input.
Write command to Read command interval:
1. Same bank, same ROW address:
When the read command is executed at the same ROW address of the
same bank as the preceding write command, the read command can be performed after an interval of no less
than 1 clock. However, in the case of a burst write, data will continue to be written until one cycle before the
read command is executed.
CK
Command
Dout
in B2
in B3
READ
WRIT
in B0
in B1
High-Z
Din
CL=3
CL=4
DQMB
Burst Length = 4
Burst write
CK
Command
READ
WRIT
Din
2 clock
High-Z
High-Z
Dout
CL=3
CL=4
DQMB
相關(guān)PDF資料
PDF描述
HB52F649E1 512 MB Registered SDRAM DIMM 64-Mword 】 72-bit, 133 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M 】 4 Components) PC133SDRAM
HB52F649E1-75B 512 MB Registered SDRAM DIMM 64-Mword 】 72-bit, 133 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M 】 4 Components) PC133SDRAM
HB52F649E1 512 MB Registered SDRAM DIMM(512 MB 寄存同步DRAM DIMM)
HB52F88EM 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
HB52F168EN 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB52F328DC-75B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52F328DC-75BL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52F328EM-75B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256MB Unbuffered SDRAM DIMM
HB52F329EM-75B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256MB Unbuffered SDRAM DIMM
HB52F648EN-75B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:512 MB Unbuffered SDRAM DIMM, 133 MHz Memory Bus PC133 SDRAM
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