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參數(shù)資料
| 型號： | MC-454AC725 |
| 廠商： | NEC Corp. |
| 英文描述： | 4M-Word By 72-BIT Dynamic RAM Module(4M×72位動態(tài)RAM模塊) |
| 中文描述： | 分詞由72位動態(tài)內存模塊（4米× 72位動態(tài)內存模塊） |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 184K |
| 代理商： | MC-454AC725 |
9
MC-454AC725
Synchronous Characteristics
[MC-454AC725F-A80, -A10, -A12]
Parameter
Symbol
-A80
-A10
-A12
Unit
Note
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Clock cycle time
/CAS latency = 3
t
CK3
8
(125 MHz)
10
(100 MHz)
12
(83 MHz)
ns
/CAS latency = 2
t
CK2
12
(83 MHz)
13
(77 MHz)
15
(67 MHz)
ns
Access time from CLK
/CAS latency = 3
t
AC3
6
7
8
ns
1
/CAS latency = 2
t
AC2
7
8
9
ns
1
CLK high level width
t
CH
3
3.5
4
ns
CLK low level width
t
CL
3
3.5
4
ns
Data-out hold time
t
OH
3
3
3
ns
1
Data-out low-impedance time
t
LZ
0
0
0
ns
Data-out high-impedance time
/CAS latency = 3
t
HZ3
3
6
3
6
3
6
ns
/CAS latency = 2
t
HZ2
3
7
3
7
3
7
ns
Data-in setup time
t
DS
2.0
2.5
3.0
ns
Data-in hold time
t
DH
1.0
1.0
1.5
ns
Address setup time
t
AS
2.0
2.5
3.0
ns
Address hold time
t
AH
1.0
1.0
1.5
ns
CKE setup time
t
CKS
2.0
2.5
3.0
ns
CKE hold time
t
CKH
1.0
1.0
1.5
ns
CKE setup time (Power down exit)
t
CKSP
2.0
2.5
3.0
ns
Command (/CS0 - /CS3, /RAS, /CAS, /WE,
DQMB0 - DQMB7) setup time
t
CMS
2.0
2.5
3.0
ns
Command (/CS0 - /CS3, /RAS, /CAS, /WE,
DQMB0 - DQMB7) hold time
t
CMH
1.0
1.0
1.5
ns
Note 1.
Output load
Output
Z = 50
1.4 V
50 pF
50
Remark
These specifications are applied to the monolithic device.
相關PDF資料 |
PDF描述 |
|---|---|
| MC-454AC726 | 4M-Word By 72-BIT Dynamic RAM Module(4M×72位動態(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 |
相關代理商/技術參數(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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