參數(shù)資料
型號: HM5225165BTT-75
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 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
中文描述: 16M X 16 SYNCHRONOUS DRAM, 5.4 ns, PDSO54
封裝: 0.400 INCH, PLASTIC, TSOP2-54
文件頁數(shù): 31/63頁
文件大小: 462K
代理商: HM5225165BTT-75
HM5225165B/HM5225805B/HM5225405B-75/A6/B6
Data Sheet E0082H10
31
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PDF資料
PDF描述
HM5225805BLTT-A6 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
HM5225405B-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
HM5225405BLTT-75 POT 20K OHM 9MM HORZ NO BUSHING
HM5225405BLTT-A6 POT 5K OHM 9MM HORZ NO BUSHING
HM5225805B-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
相關代理商/技術參數(shù)
參數(shù)描述
HM5225165BTT-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
HM5225165BTT-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
HM5225325F-B60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:256M LVTTL interface SDRAM 100 MHz 1-Mword x 64-bit x 4-bank/2-Mword x 32-bit x 4-bank PC/100 SDRAM
HM5225325FBP-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x32 SDRAM
HM5225405B-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