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參數(shù)資料
| 型號(hào)： | MC-454CB646 |
| 廠商： | NEC Corp. |
| 英文描述： | 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動(dòng)態(tài)RAM 模塊) |
| 中文描述： | 4支M - 64個(gè)字位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器模塊（同步動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁(yè)數(shù)： | 7/16頁(yè) |
| 文件大?。?/td> | 136K |
| 代理商： | MC-454CB646 |
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7
MC-454CB646
AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)
AC Characteristics Test Conditions
AC measurements assume t
T
=
1
ns.
Reference level for measuring timing of input signals is 1.4
V. Transition times are measured between V
IH
and V
IL
.
If t
T
is longer than 1
ns, reference level for measuring timing of input signals is V
IH (MIN.)
and V
IL (MAX.)
.
An access time is measured at 1.4
V.
t
CK
t
CH
t
CL
2.0 V
1.4 V
0.8 V
CLK
2.0 V
1.4 V
0.8 V
Input
t
SETUP
t
HOLD
Output
t
AC
t
OH
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