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MC74ACT253MR1 Datasheet PDF : 8 Pages
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MC74AC253 MC74ACT253
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
Sn to Zn
Propagation Delay
Sn to Zn
Propagation Delay
In to Zn
Propagation Delay
In to Zn
Output Enable Time
3.3 2.0
5.0 2.0
3.3 2.5
5.0 2.0
3.3 1.5
5.0 1.5
3.3 2.0
5.0 1.5
3.3 1.5
5.0 1.5
15.5 2.0 17.5
ns
3-6
11.0 1.5 12.5
16.0 2.0 18.0
ns
3-6
11.5 1.5 13.0
14.5 1.5 17.0
ns
3-5
10.0 1.5 11.5
13.0 1.5 15.0
ns
3-5
9.5 1.5 11.0
8.0 1.0 8.5
ns
3-7
6.0 1.0 6.5
tPZL
Output Enable Time
3.3 1.5
5.0 1.5
8.0 1.0 9.0
ns
3-8
6.0 1.0 7.0
tPHZ
Output Disable Time
3.3 2.0
5.0 2.0
9.5 1.5 10.0
ns
3-7
8.0 1.5 8.5
tPLZ
Output Disable Time
3.3 1.5
5.0 1.5
8.0 1.0 9.0
ns
3-8
7.0 1.0 7.5
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-5
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