MC74AC244, MC74ACT244
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)
74AC
74AC
T
= –40°C
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
L
CC
to +85°C
C
Symbol
Parameter
Unit
= 50 pF
L
Min
Typ
Max
Min
Max
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
1.5
1.0
10.0
7.5
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
3–5
3–5
3–7
3–8
3–7
3–8
PLH
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
2.0
1.0
10.0
7.5
PHL
PZH
PZL
PHZ
PLZ
3.3
5.0
2.0
1.5
6.0
5.0
10.5
7.0
1.5
1.5
11.0
8.0
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
3.3
5.0
2.5
1.5
7.5
5.5
10.0
8.0
2.0
1.5
11.0
8.5
3.3
5.0
3.0
2.5
7.0
6.5
10.0
9.0
1.5
1.0
10.5
9.5
3.3
5.0
2.5
2.0
7.5
6.5
10.5
9.0
2.5
2.0
11.5
9.5
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
DC CHARACTERISTICS
74ACT
74ACT
T
=
A
V
(V)
CC
T
A
= +25°C
–40°C to
+85°C
Symbol
Parameter
Unit
Conditions
Typ
Guaranteed Limits
V
V
V
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
or V
= 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
– 0.1 V
CC
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
OUT
= 0.1 V
Maximum Low Level
Input Voltage
IL
or V
– 0.1 V
CC
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
I
= –50 µA
Minimum High Level
Output Voltage
OH
OUT
*V = V or V
IN IL IH
4.5
5.5
–
–
3.86
4.86
3.76
4.76
V
–24 mA
I
OH
–24 mA
V
OL
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
I
= 50 µA
OUT
Maximum Low Level
Output Voltage
V
V
*V = V or V
IN IL
IH
4.5
5.5
–
–
0.36
0.36
0.44
0.44
24 mA
24 mA
I
OL
I
IN
Maximum Input
Leakage Current
5.5
5.5
–
±0.1
±1.0
µA
V = V , GND
I
CC
∆I
CCT
Additional Max. I /Input
CC
0.6
–
1.5
mA
V = V
– 2.1 V
I
CC
I
V (OE) = V , V
IL IH
Maximum
3–State
Current
OZ
I
5.5
–
±0.5
±5.0
µA
V = V , GND
I
CC
= V , GND
CC
V
O
I
I
I
5.5
5.5
–
–
–
–
75
mA
mA
V
= 1.65 V Max
†Minimum Dynamic
Output Current
OLD
OLD
OHD
–75
V
V
= 3.85 V Min
OHD
CC
Maximum Quiescent
Supply Current
5.5
–
8.0
80
µA
= V or GND
CC
IN
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
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