MC74AC540 查看數據表（PDF） - Motorola => Freescale
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MC74AC540 Datasheet PDF : 7 Pages
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MC74AC540 MC74ACT540 MC74AC541 MC74ACT541
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
tPLH
tPHL
Propagation Delay
Data to Output (′ACT540)
Propagation Delay
Data to Output (′ACT540)
5.0 1.0
5.0 1.0
7.0 1.0 7.5
ns
3-5
8.0 1.0 8.5
ns
3-5
tPZH
tPZL
tPHZ
Output Enable Time
(′ACT540)
Output Enable Time
(′ACT540)
Output Disable Time
(′ACT540)
5.0 1.0
5.0 1.0
5.0 1.0
10.5 1.0 11.5
ns
3-7
9.5 1.0 10.5
ns
3-8
12.0 1.0 12.5
ns
3-7
tPLZ
Output Disable Time
(′ACT540)
tPLH
Propagation Delay
Data to Output (′ACT541)
tPHL
Propagation Delay
Data to Output (′ACT541)
tPZH
Output Enable Time
(′ACT541)
tPZL
Output Enable Time
(′ACT541)
tPHZ
Output Disable Time
(′ACT541)
tPLZ
Output Disable Time
(′ACT541)
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.5
5.0 1.5
5.0 1.5
5.0 2.0
5.0 1.5
5.0 2.0
5.0 2.0
9.0 1.0 10
ns
3-8
7.5 1.0 8.0
ns
3-5
7.5 1.0 8.0
ns
3-5
10.0 1.0 11.0
ns
3-7
9.5 1.0 10.5
ns
3-8
11.0 1.0 12.0
ns
3-7
9.0 1.0 10
ns
3-8
CAPACITANCE
Symbol
Parameter
CIN
CPD
Input Capacitance
Power Dissipation Capacitance
Value
Typ
Unit
4.5
pF
30
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
FACT DATA
5-6
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