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參數(shù)資料
| 型號： | MC74AC378N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | PARALLEL D REGISTER WITH ENABLE |
| 中文描述： | AC SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 170K |
| 代理商： | MC74AC378N |
MC74AC378 MC74ACT378
5-4
FACT DATA
AC CHARACTERISTICS
(For Figures and Waveforms — See Section 3)
Symbol
Parameter
(V)
74AC
74AC
Unit
No.
VCC*
TA = +25
°
C
CL = 50 pF
TA = –40
°
C
to +85
°
C
CL = 50 pF
Fig.
Min
Typ
Max
Min
Max
fmax
Maximum Clock
Frequency
3.3
5.0
125
160
110
145
MHz
3-3
tPLH
Propagation Delay
CP to Qn
Propagation Delay
CP to Qn
3.3
5.0
2.5
1.5
11
8.0
2.5
1.5
12.5
9.0
ns
3-6
tPHL
3.3
5.0
2.5
1.5
10.5
7.5
2.5
1.5
11
8.0
ns
3-6
* Voltage Range 3.3 V is 3.3 V
±
0.3 V.
Voltage Range 5.0 V is 5.0 V
±
0.5 V.
AC OPERATING REQUIREMENTS
Symbol
Parameter
(V)
74AC
74AC
Unit
No.
VCC*
TA = +25
°
C
CL = 50 pF
TA = –40
°
C
to +85
°
C
CL = 50 pF
Fig.
Typ
Guaranteed Minimum
ts
Setup Time, HIGH or LOW
Dn to CP
Hold Time, HIGH or LOW
Dn to CP
Setup Time, HIGH or LOW
E to CP
3.3
5.0
3.0
2.0
3.5
2.5
ns
3-9
th
3.3
5.0
2.0
2.0
2.0
2.0
ns
3-9
ts
3.3
5.0
2.0
2.0
2.0
2.0
ns
3-9
th
Hold Time, HIGH or LOW
E to CP
3.3
5.0
2.0
2.0
2.0
2.0
ns
3-9
tw
CP Pulse Width
HIGH or LOW
3.3
5.0
4.5
3.5
5.5
4.0
ns
3-6
* Voltage Range 3.3 V is 3.3 V
±
0.3 V.
Voltage Range 5.0 V is 5.0 V
±
0.5 V.
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