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參數(shù)資料
| 型號(hào)： | HB52RF649DC |
| 廠商： | Elpida Memory, Inc. |
| 英文描述： | 512MB Unbuffered SDRAM S.O.DIMM |
| 中文描述： | 512MB的無(wú)緩沖內(nèi)存的SODIMM |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大?。?/td> | 464K |
| 代理商： | HB52RF649DC |
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HB52RF649DC-B, HB52RD649DC-B
Data Sheet E0223H30 (Ver. 3.0)
12
Relationship Between Frequency and Minimum Latency
Parameter
-75
-A6
Frequency (MHz)
133
100
t
CK
(ns)
Active command to column command
(same bank)
Active command to active command
(same bank)
Active command to precharge command (same
bank)
Precharge command to active command (same
bank)
Write recovery or data-in to precharge command
(same bank)
Active command to active command
(different bank)
Self refresh exit time
Last data in to active command
(Auto precharge, same bank)
Symbol
PC100
Symbol
7.5
10
Notes
lRCD
3
2
1
lRC
9
7
= [lRAS+ lRP]
1
lRAS
6
5
1
lRP
3
2
1
lDPL
Tdpl
2
2
1
lRRD
2
2
1
lSREX
Tsrx
1
1
2
lAPW
Tdal
5
4
= [lDPL + lRP]
Self refresh exit to command input
lSEC
9
7
= [lRC]
3
Precharge command to high impedance
(CL = 2)
(CL = 3)
Last data out to active command
(Auto precharge, same bank)
Last data out to precharge (early precharge)
(CL = 2)
(CL = 3)
lHZP
lHZP
Troh
Troh
2
3
2
3
lAPR
1
1
lEP
lEP
–1
–2
–1
–2
Column command to column command
lCCD
Tccd
1
1
Write command to data in latency
lWCD
Tdwd
0
0
DQMB to data in
lDID
Tdqm
0
0
DQMB to data out
lDOD
Tdqz
2
2
CKE to CK disable
lCLE
Tcke
1
1
Register set to active command
lRSA
Tmrd
1
1
/S to command disable
lCDD
0
0
Power down exit to command input
lPEC
1
1
Notes: 1. lRCD to lRRD are recommended value.
2. Be valid [DESL] or [NOP] at next command of self refresh exit.
3. Except [DESL] and [NOP]
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HB52RD649DC-A6B | 512MB Unbuffered SDRAM S.O.DIMM |
| HB52RD649DC-A6BL | 512MB Unbuffered SDRAM S.O.DIMM |
| HB52RD649DC-B | 512MB Unbuffered SDRAM S.O.DIMM |
| HB52RF649DC-75B | 512MB Unbuffered SDRAM S.O.DIMM |
| HB52RF649DC-75BL | 512MB Unbuffered SDRAM S.O.DIMM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HB52RF649DC-75B | 制造商:ELPIDA 制造商全稱(chēng):Elpida Memory 功能描述:512MB Unbuffered SDRAM S.O.DIMM |
| HB52RF649DC-75BL | 制造商:ELPIDA 制造商全稱(chēng):Elpida Memory 功能描述:512MB Unbuffered SDRAM S.O.DIMM |
| HB52RF649DC-B | 制造商:ELPIDA 制造商全稱(chēng):Elpida Memory 功能描述:512MB Unbuffered SDRAM S.O.DIMM |
| HB52RF649E1U-75B | 制造商:ELPIDA 制造商全稱(chēng):Elpida Memory 功能描述:512 MB Registered SDRAM DIMM 64-Mword ?? 72-bit, 133 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M ?? 4 Components) PC133 SDRAM |
| HB5-3 | 制造商:POWER-ONE 制造商全稱(chēng):Power-One 功能描述:Linear Power Supplies Data Sheet |
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