參數(shù)資料
型號(hào)： HM5264805F-B60
廠商： Hitachi,Ltd.
元件分類： 圓形連接器
英文描述： Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
中文描述： 6400 LVTTL接口SDRAM的133 MHz/100 MHz的
文件頁數(shù)： 30/67頁
文件大小： 870K
代理商： HM5264805F-B60
HM5264165F/HM5264805F/HM5264405F-75/A60/B60
30
Read command to Write command interval:
1. Same bank, same ROW address:
When the write command is executed at the same ROW address of the
same bank as the preceding read command, the write command can be performed after an interval of no less
than 1 clock. However, DQM, DQMU/DQML must be set High so that the output buffer becomes High-Z
before data input.
READ to WRITE Command Interval (1)
CLK
Command
Dout
in B2
in B3
READ
WRIT
in B0
in B1
High-Z
Din
CL=2
CL=3
DQM,
DQMU
/DQML
Burst Length = 4
Burst write
READ to WRITE Command Interval (2)
CLK
Command
Dout
READ
WRIT
Din
CL=2
CL=3
DQM,
DQMU/DQML
High-Z
2 clock
High-Z
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, DQM, DQMU/DQML must
be set High so that the output buffer becomes High-Z before data input.
相關(guān)PDF資料
PDF描述
HM5264165A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264165B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264165FTT-75 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FTT-75 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405FTT-75 64M LVTTL interface SDRAM 133 MHz/100 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5264805FLTT-75 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FLTT-A60 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz 1-Mword × 16-bit × 4-bank/2-Mword × 8-bit × 4-bank /4-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM
HM5264805FLTT-B60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FTT-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz 1-Mword × 16-bit × 4-bank/2-Mword × 8-bit × 4-bank /4-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM
HM5264805FTT-A60 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz 1-Mword × 16-bit × 4-bank/2-Mword × 8-bit × 4-bank /4-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM
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