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| 型號： | MC-458CB646EFB-A80 |
| 廠商： | NEC Corp. |
| 英文描述： | 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| 中文描述： | 800萬字，64位同步動態(tài)RAM模塊無緩沖型 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 190K |
| 代理商： | MC-458CB646EFB-A80 |
Data Sheet M14279EJ3V0DS00
8
MC-458CB647
Synchronous Characteristics
Parameter
Symbol
-A75
Unit
Note
MIN.
MAX.
Clock cycle time
/CAS latency = 3
t
CK3
7.5
(133 MHz)
ns
/CAS latency = 2
t
CK2
10
(100 MHz)
ns
Access time from CLK
/CAS latency = 3
t
AC3
5.4
ns
1
/CAS latency = 2
t
AC2
6.0
ns
1
CLK high level width
t
CH
2.5
ns
CLK low level width
t
CL
2.5
ns
Data-out hold time
t
OH
3.0
ns
1
Data-out low-impedance time
t
LZ
0
ns
Data-out high-impedance time
/CAS latency = 3
t
HZ3
3.0
5.4
ns
/CAS latency = 2
t
HZ2
3.0
6.0
ns
Data-in setup time
t
DS
1.5
ns
Data-in hold time
t
DH
0.8
ns
Address setup time
t
AS
1.5
ns
Address hold time
t
AH
0.8
ns
CKE setup time
t
CKS
1.5
ns
CKE hold time
t
CKH
0.8
ns
CKE setup time (Power down exit)
t
CKSP
1.5
ns
Command (/CS0, /CS2, /RAS, /CAS, /WE,
t
CMS
1.5
ns
DQMB0 - DQMB7) setup time
Command (/CS0, /CS2, /RAS, /CAS, /WE,
t
CMH
0.8
ns
DQMB0 - DQMB7) hold time
Note 1.
Output load
Output
Z = 50
50 pF
Remark
These specifications are applied to the monolithic device.
#
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC-458CB646PFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646PFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646XFB-A10 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646XFB-A80 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB647 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
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