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參數(shù)資料
| 型號(hào)： | MC-454AC725 |
| 廠商： | NEC Corp. |
| 英文描述： | 4M-Word By 72-BIT Dynamic RAM Module(4M×72位動(dòng)態(tài)RAM模塊) |
| 中文描述： | 分詞由72位動(dòng)態(tài)內(nèi)存模塊（4米× 72位動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 12/20頁 |
| 文件大小： | 184K |
| 代理商： | MC-454AC725 |
12
MC-454AC725
[MC-454AC725F-A10B]
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
26
ns
Delay time ACT to READ/WRITE command
t
RCD
26
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+26
ns
period (Auto precharge)
/CAS latency = 2
t
DAL2
1CLK+26
ns
Mode register set cycle time
t
RSC
2
CLK
Transition time
t
T
1
30
ns
Refresh time
t
REF
32
ms
#
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC-454AC726 | 4M-Word By 72-BIT Dynamic RAM Module(4M×72位動(dòng)態(tài)RAM模塊) |
| MC-454AD644-A67 | 4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AC724 | 4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AC724F-A67 | 4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AD644 | 4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC-454AD644 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AD644-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AD644-A12 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AD644-A67 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-454AD646 | 制造商:NEC 制造商全稱:NEC 功能描述:4M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
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