參數(shù)資料
型號: HB52F88EM
廠商: Hitachi,Ltd.
英文描述: 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
中文描述: 64 MB的無緩沖SDRAM的內(nèi)存(64 MB的未緩沖同步的DRAM內(nèi)存)
文件頁數(shù): 53/71頁
文件大小: 906K
代理商: HB52F88EM
HB52F88EM-75F, HB52F89EM-75F, HB52F168EN-75F, HB52F169EN-
53
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 the next clock of the second com-
mand.
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.
Read command to Precharge command interval (same bank):
CK
Command
BA
Dout
Din
READ A
WRIT
in B0
in B1
in B2
in B3
Burst Length = 4
bank0
Read A
bank3
Write
Note: Internal auto-precharge starts at the timing indicated by " ".
DQMB
CL = 3
High-Z
CK
Command
BA
Dout
Din
WRIT A
READ
out B0
out B1
out B2
out B3
CE
Latency = 3
Burst Length = 4
bank0
Write A
bank3
Read
Note: Internal auto-precharge starts at the timing indicated by " ".
DQMB
in A0
相關(guān)PDF資料
PDF描述
HB52F168EN 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
HB52F169EN 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
HB52F89EM 64 MB Unbuffered SDRAM DIMM(64 MB 未緩沖同步DRAM DIMM)
HB52R1289E22 1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 】 4 Components) PC100 SDRAM
HB52R1289E22-A6B 1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 】 4 Components) PC100 SDRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB52R1289E22 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 】 4 Components) PC100 SDRAM
HB52R1289E22-A6B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 】 4 Components) PC100 SDRAM
HB52R1289E22-B6B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:1 GB Registered SDRAM DIMM 1 GB Registered SDRAM DIMM (36 pcs of 64 M 】 4 Components) PC100 SDRAM
HB52R1289E2-A6A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module
HB52R1289E2-B6A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module