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參數(shù)資料
| 型號： | MC-458CA725 |
| 廠商： | NEC Corp. |
| 英文描述： | 8M-Word By 72-BIT Dynamic RAM Module(8M×72位動態(tài)RAM模塊) |
| 中文描述： | 800萬字由72位動態(tài)內存模塊（8米× 72位動態(tài)內存模塊） |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 135K |
| 代理商： | MC-458CA725 |
9
MC-458CA725
Asynchronous Characteristics
Parameter
Symbol
-A10B
Unit
Note
MIN.
MAX.
REF to REF/ACT command period
t
RC
90
ns
ACT to PRE command period
t
RAS
60
120,000
ns
PRE to ACT command period
t
RP
30
ns
Delay time ACT to READ/WRITE command
t
RCD
30
ns
ACT (0) to ACT (1) command period
t
RRD
20
ns
Data-in to PRE command period
t
DPL
10
ns
Data-in to ACT (REF) command
/CAS latency = 3
t
DAL3
1CLK + 30
ns
period (Auto precharge)
/CAS latency = 2
t
DAL2
1CLK + 30
ns
Mode register set cycle time
t
RSC
2
CLK
Transition time
t
T
1
30
ns
Refresh time
t
REF
64
ms
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC-458CA726 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA726EFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA726EFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA726PFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA726PFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
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