74AC573 查看數據表（PDF） - Motorola => Freescale
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74AC573 Datasheet PDF : 8 Pages
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MC74AC573 MC74ACT573
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74AC
74AC
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
tPLH
tPHL
tPZH
Propagation Delay
Dn to On
Propagation Delay
Dn to On
Propagation Delay
LE to On
Propagation Delay
LE to On
Output Enable Time
3.3 2.5
5.0 2.5
3.3 2.5
5.0 2.5
3.3 2.5
5.0 2.5
3.3 2.5
5.0 2.5
3.3 2.5
5.0 2.5
13.0 2.0 15.0
ns
3-5
10.0 2.0 11.5
12.0 2.0 14.0
ns
3-5
9.5 2.0 11.0
13.0 2.0 15.0
ns
3-6
9.5 2.0 11.0
12.0 2.0 14.0
ns
3-6
8.5 2.0 10.0
11.0 2.0 12.0
ns
3-7
9.0 2.0 10.0
tPZL
Output Enable Time
3.3 2.5
5.0 2.5
11.0 2.0 12.5
ns
3-8
8.5 2.0 9.5
tPHZ
Output Disable Time
3.3 2.5
5.0 2.5
12.5 2.0 13.5
ns
3-7
11.0 2.0 12.0
tPLZ
Output Disable Time
3.3 2.5
5.0 2.5
9.5 2.0 10.5
ns
3-8
8.0 2.0 9.0
* 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
ts
Setup Time, HIGH or LOW
Dn to LE
th
Hold Time, HIGH or LOW
Dn to LE
tw
LE Pulse Width, HIGH
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC
74AC
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3
3.5
4.0
ns
3-9
5.0
3.0
3.5
3.3
2.0
2.0
ns
3-9
5.0
2.0
2.0
3.3
6.0
7.0
ns
3-6
5.0
4.0
5.0
FACT DATA
5-5
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