- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383553 > MC-424LFG641 (NEC Corp.) 64 bits dynamic RAM modules(64 位動(dòng)態(tài)RAM 模塊) PDF資料下載
參數(shù)資料
| 型號(hào)： | MC-424LFG641 |
| 廠商： | NEC Corp. |
| 英文描述： | 64 bits dynamic RAM modules(64 位動(dòng)態(tài)RAM 模塊) |
| 中文描述： | 64位動(dòng)態(tài)RAM模塊（64位動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁(yè)數(shù)： | 11/44頁(yè) |
| 文件大?。?/td> | 368K |
| 代理商： | MC-424LFG641 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)
11
MC-424LFG641
Common to Read, Write, Read Modify Write Cycle
[ MC-424LFG641F, 424LFG641FA ]
Parameter
Symbol
t
RAC
= 60 ns
t
RAC
= 70 ns
Unit
Notes
MIN.
MAX.
MIN.
MAX.
Read / Write cycle time
t
RC
104
124
ns
/RAS precharge time
t
RP
40
50
ns
/CAS precharge time
t
CPN
10
10
ns
/RAS pulse width
t
RAS
60
10,000
70
10,000
ns
/CAS pulse width
t
CAS
10
10,000
12
10,000
ns
/RAS hold time
t
RSH
15
20
ns
/CAS hold time
t
CSH
45
50
ns
/RAS to /CAS delay time
t
RCD
14
45
14
52
ns
1
/RAS to column address delay time
t
RAD
12
30
12
35
ns
1
/CAS to /RAS precharge time
t
CRP
5
5
ns
2
Row address setup time
t
ASR
0
0
ns
Row address hold time
t
RAH
10
10
ns
Column address setup time
t
ASC
0
0
ns
Column address hold time
t
CAH
10
12
ns
/OE lead time referenced to /RAS
t
OES
0
0
ns
/CAS to data setup time
t
CLZ
0
0
ns
/OE to data setup time
t
OLZ
0
0
ns
/OE to data delay time
t
OED
13
15
ns
Transition time (rise and fall)
t
T
1
50
1
50
ns
Refresh time
t
REF
64
64
ms
Notes 1.
For read cycles, access time is defined as follows:
Input conditions
Access time
Access time from /RAS
t
RAD
≤
t
RAD (MAX.)
and t
RCD
≤
t
RCD (MAX.)
t
RAC (MAX.)
t
RAC (MAX.)
t
RAD
> t
RAD (MAX.)
and t
RCD
≤
t
RCD (MAX.)
t
AA (MAX.)
t
RAD
+ t
AA (MAX.)
t
RCD
> t
RCD (MAX.)
t
CAC (MAX.)
t
RCD
+ t
CAC (MAX.)
t
RAD (MAX.)
and t
RCD (MAX.)
are specified as reference points only; they are not restrictive operating parameters.
They are used to determine which access time (t
RAC
, t
AA
or t
CAC
) is to be used for finding out when output
data will be available. Therefore, the input conditions t
RAD
≥
t
RAD (MAX.)
and t
RCD
≥
t
RCD (MAX.)
will not cause any
operation problems.
2.
t
CRP
(MIN.)
requirement is applied to /RAS, /CAS cycles.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC-428LFC72 | 3.3 V Operation 4M-Word By 64-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊) |
| MC-428LFF721 | 3.3 V Operation 16M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊) |
| MC-428LFG641 | 3.3 V Operation 8M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的DRAM模塊) |
| MC-428LFH641 | 3.3 V Operation 8M-Word By 72-Bit Dynamic RAM Module(工作電壓為3.3V的DRAM模塊) |
| MC-42S4LFG64S | 3.3 V Operation 16M-Word By 65-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC424P | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC425D | 制造商:Thomas & Betts 功能描述:MC425D MALE INSERT,CRIMP 制造商:Thomas & Betts 功能描述:MALE INSERT,CRIMP |
| MC428P | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC42B505J | 制造商:ELE 功能描述:AF550X050 ELECT'CUBE MOLDED |
| MC42S8LFF64SAA60 | 制造商:NEC Electronics Corporation 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。