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參數(shù)資料
| 型號： | MC-454AD645 |
| 廠商： | NEC Corp. |
| 英文描述： | 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動態(tài)RAM 模塊) |
| 中文描述： | 4支M - 64個字位同步動態(tài)隨機存儲器模塊（同步動態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 184K |
| 代理商： | MC-454AD645 |
11
MC-454AD645
Asynchronous Characteristics
[MC-454AD645F]
Parameter
Symbol
-A80
-A10
-A12
Unit
Note
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
REF to REF/ACT command period
t
RC
80
90
90
ns
ACT to PRE command period
t
RAS
48
120,000
60
120,000
60
120,000
ns
PRE to ACT command period
t
RP
24
26
30
ns
Delay time ACT to READ/WRITE command
t
RCD
24
26
30
ns
ACT (0) to ACT (1) command period
t
RRD
16
20
24
ns
Data-in to PRE command period
t
DPL
8
10
12
ns
Data-in to ACT (REF) command
period (Auto precharge)
/CAS latency = 3
t
DAL3
1CLK
+24
1CLK
+26
1CLK
+30
ns
/CAS latency = 2
t
DAL2
1CLK
+24
1CLK
+26
1CLK
+30
ns
Mode register set cycle time
t
RSC
2
2
2
CLK
Transition time
t
T
0.5
30
1
30
1
30
ns
Refresh time
t
REF
32
32
32
ms
相關PDF資料 |
PDF描述 |
|---|---|
| MC-454CB645 | 4M-Word By 64-BIT Dynamic RAM Module(4M×64位動態(tài)RAM模塊) |
| MC-454CB646 | 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動態(tài)RAM 模塊) |
| MC-454CB64S | 4M-Word By 64-BIT Dynamic RAM Module(動態(tài)RAM模塊) |
| MC-4564DC726 | 64M-Word By 72-BIT Dynamic RAM Module(動態(tài)RAM模塊) |
| MC-4564EC726 | 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MC-454CB645 | 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-454CB645FA-A10B | 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-454CB645LFA-A10B | 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 |
| MC4556 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL OPERATIONAL AMPLIFIER |
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