參數(shù)資料
型號(hào)： HM5264405D
廠商： Hitachi,Ltd.
英文描述： 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
中文描述： 6400 LVTTL接口的SDRAM（6400 LVTTL接口同步的DRAM）
文件頁(yè)數(shù)： 32/67頁(yè)
文件大?。?/td> 615K
代理商： HM5264405D
HM5264165D-A60, HM5264805D-A60, HM5264405D-A60
32
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)
CLK
Command
BS
Dout
READ A
READ
out A0
out A1
out B0
out B1
CAS
Latency = 3
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)
CLK
Command
BS
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
HM5264165D 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
HM5264805D 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
HM5264405F 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
HM5264805F-75 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264805F-A60 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5264405DLTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405DLTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405DTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405DTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
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