參數(shù)資料
型號(hào)： HM5225805B-75
廠商： Elpida Memory, Inc.
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:11; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:18; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:18-11
中文描述： 256M LVTTL接口SDRAM的133 MHz/100 MHz的4 Mword】16位】4-bank/8-Mword】8位】4銀行/ 16 Mword】4位】4銀行PC/133，電腦/ 100內(nèi)存
文件頁(yè)數(shù)： 11/63頁(yè)
文件大?。?/td> 462K
代理商： HM5225805B-75
HM5225165B/HM5225805B/HM5225405B-75/A6/B6
Data Sheet E0082H10
11
Column address strobe and write command [WRIT]:
This command starts a write operation. When the
burst write mode is selected, the column address (AY0 to AY8; HM5225165B, AY0 to AY9; HM5225805B,
AY0 to AY9, AY11; HM5225405B) and the bank select address (BA0/BA1) become the burst write start
address. When the single write mode is selected, data is only written to the location specified by the column
address (AY0 to AY8; HM5225165B, AY0 to AY9; HM5225805B, AY0 to AY9, AY11; HM5225405B) and
the bank select address (BA0/BA1).
Write with auto-precharge [WRIT A]:
This command automatically performs a precharge operation after a
burst write with a length of 1, 2, 4 or 8, or after a single write operation.
Row address strobe and bank activate [ACTV]:
This command activates the bank that is selected by
BA0/BA1 (BS) and determines the row address (AX0 to AX12). When BA0 and BA1 are Low, bank 0 is
activated. When BA0 is Low and BA1 is High, bank 1 is activated. When BA0 is High and BA1 is Low,
bank 2 is activated. When BA0 and BA1 are High, bank 3 is activated.
Precharge selected bank [PRE]:
This command starts precharge operation for the bank selected by
BA0/BA1. If BA0 and BA1 are Low, bank 0 is selected. If BA0 is Low and BA1 is High, bank 1 is selected.
If BA0 is High and BA1 is Low, bank 2 is selected. If BA0 and BA1 are High, bank 3 is selected.
Precharge all banks [PALL]:
This command starts a precharge operation for all banks.
Refresh [REF/SELF]:
This command starts the refresh operation. There are two types of refresh operation,
the one is auto-refresh, and the other is self-refresh. For details, refer to the CKE truth table section.
Mode register set [MRS]:
The SDRAM has a mode register that defines how it operates. The mode register
is specified by the address pins (A0 to BA0 and BA1) at the mode register set cycle. For details, refer to the
mode register configuration. After power on, the contents of the mode register are undefined, execute the
mode register set command to set up the mode register.
相關(guān)PDF資料
PDF描述
HM5225405B-75 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:30; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5225805B-A6 Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:30; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:18-30
HM5225405B-A6 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:32; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5225165BTT-B6 256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225165BLTT-B6 256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5225805B-A6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225805B-B6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225805BLTT-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225805BLTT-A6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225805BLTT-B6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
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