參數(shù)資料
型號: MC-458CB64S
廠商: NEC Corp.
英文描述: Synchronous Dynamic RAM Module(同步動態(tài)RAM模塊)
中文描述: 同步動態(tài)隨機(jī)存儲器模塊(同步動態(tài)內(nèi)存模塊)
文件頁數(shù): 9/20頁
文件大?。?/td> 196K
代理商: MC-458CB64S
9
MC-458CB64S
Synchronous Characteristics
[MC-458CB64S]
Parameter
Symbol
-A10
-A12
Unit
Note
MIN.
MAX.
MIN.
MAX.
Clock cycle time
/CAS latency = 3
t
CK3
10
12
ns
/CAS latency = 2
t
CK2
15
18
ns
Access time from CLK
/CAS latency = 3
t
AC3
8
9
ns
1
/CAS latency = 2
t
AC2
9
11
ns
1
CLK high level width
t
CH
3.5
4.0
ns
CLK low level width
t
CL
3.5
4.0
ns
Data-out hold time
t
OH
3.0
3.0
ns
1
Data-out low-impedance time
t
LZ
0
0
ns
Data-out high-impedance time
/CAS latency = 3
t
HZ3
3
8
3
9
ns
/CAS latency = 2
t
HZ2
3
9
3
11
ns
Data-in setup time
t
DS
2.5
3.0
ns
Data-in hold time
t
DH
1.0
1.5
ns
Address setup time
t
AS
2.5
3.0
ns
Address hold time
t
AH
1.0
1.5
ns
CKE setup time
t
CKS
2.5
3.0
ns
CKE hold time
t
CKH
1.0
1.5
ns
CKE setup time (Power down exit)
t
CKSP
2.5
3.0
ns
Command (/CS0, /RAS, /CAS, /WE, DQMB0 - DQMB7)
setup time
t
CMS
2.5
3.0
ns
Command (/CS0, /RAS, /CAS, /WE, DQMB0 - DQMB7)
hold time
t
CMH
1.0
1.5
ns
Note 1.
Output load
Output
Z = 50
1.4 V
50 pF
50
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