參數(shù)資料
型號(hào)： HB52RF329E2
廠商： Hitachi,Ltd.
英文描述： 256 MB Registered SDRAM DIMM(256 MB 寄存同步DRAM DIMM)
中文描述： 注冊(cè)使用256 MB SDRAM的內(nèi)存（256 MB的寄存同步的DRAM內(nèi)存）
文件頁(yè)數(shù)： 42/64頁(yè)
文件大?。?/td> 869K
代理商： HB52RF329E2
HB52RF329E2-75F
42
Read 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. Even when the first read with auto-precharge is a burst read that is not yet finished, the data read by
the second command is valid. The internal auto-precharge of one bank starts at the next clock of the second
command.
Read with Auto Precharge to Read Command Interval
(Different bank)
CK
Command
BA
Dout
READ A
READ
out A0
out A1
out B0
out B1
CE
Latency = 4
Burst Length = 4
bank0
Read A
bank3
Read
Note: Internal auto-precharge starts at the timing indicated by " ".
2. Same bank:
The consecutive read command (the same bank) is illegal.
Write 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. In the case of burst writes, the second write command has priority. The internal auto-precharge of
one bank starts at the next clock of the second command .
Write with Auto Precharge to Write Command Interval
(Different bank)
CK
Command
BA
Din
WRIT A
WRIT
in B1
in B2
in B3
in A0
in A1
in B0
Burst Length = 4
bank0
Write A
bank3
Write
Note: Internal auto-precharge starts at the timing indicated by " ".
2. Same bank:
The consecutive write command (the same bank) is illegal.
相關(guān)PDF資料
PDF描述
HB52RF648DC-B 512 MB Unbuffered SDRAM S.O.DIMM 64-Mword 】 64-bit, 133/100 MHz Memory Bus, 2-Bank Module (16 pcs of 32 M 】 8 components) PC133/100 SDRAM
HB52RD648DC-B 512 MB Unbuffered SDRAM S.O.DIMM 64-Mword 】 64-bit, 133/100 MHz Memory Bus, 2-Bank Module (16 pcs of 32 M 】 8 components) PC133/100 SDRAM
HB52RF649DC 512MB Unbuffered SDRAM S.O.DIMM
HB52RD649DC-A6B 512MB Unbuffered SDRAM S.O.DIMM
HB52RD649DC-A6BL 512MB Unbuffered SDRAM S.O.DIMM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB52RF329E2-75F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module
HB52RF648DC-75B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52RF648DC-75BL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52RF648DC-B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:512 MB Unbuffered SDRAM S.O.DIMM 64-Mword 】 64-bit, 133/100 MHz Memory Bus, 2-Bank Module (16 pcs of 32 M 】 8 components) PC133/100 SDRAM
HB52RF649DC 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:512MB Unbuffered SDRAM S.O.DIMM
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