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參數(shù)資料
| 型號(hào)： | MC-458CA721PSA |
| 廠商： | NEC Corp. |
| 英文描述： | 8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM |
| 中文描述： | 800萬字的72位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器模塊以便內(nèi)存 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 142K |
| 代理商： | MC-458CA721PSA |
Data Sheet M14494EJ2V0DS00
9
MC-458CA721ESA, 458CA721PSA
Asynchronous Characteristics
Parameter
Symbol
-A80
-A10
Unit
Note
MIN.
MAX.
MIN.
MAX.
ACT to REF/ACT command period (Operation)
t
RC
70
70
ns
REF to REF/ACT command period (Refresh)
t
RC1
70
70
ns
ACT to PRE command period
t
RAS
48
120,000
50
120,000
ns
PRE to ACT command period
t
RP
20
20
ns
Delay time ACT to READ/WRITE command
t
RCD
20
20
ns
ACT(one) to ACT(another) command period
t
RRD
16
20
ns
Data-in to PRE command period
t
DPL
8
10
ns
Data-in to ACT(REF) command
/CAS latency = 3
t
DAL3
1CLK+20
1CLK+20
ns
period (Auto precharge)
/CAS latency = 2
t
DAL2
1CLK+20
1CLK+20
ns
Mode register set cycle time
t
RSC
2
2
CLK
Transition time
t
T
0.5
30
1
30
ns
Refresh time (4,096 refresh cycles)
t
REF
64
64
ms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC-458CA721PSA-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM |
| MC-458CA721PSA-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM |
| MC-458CA721XSA | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM) |
| MC-458CA721XSA-A10 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM) |
| MC-458CA721XSA-A80 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM) |
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