MC74AC244, MC74ACT244
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4
DC CHARACTERISTICS
Symbol Parameter
V
CC
(V)
74ACT 74ACT
Unit Conditions
T
A
= +25°C
T
A
=
−40°C to +85°C
Typ Guaranteed Limits
V
IH
Minimum High Level Input Voltage 4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V V
OUT
= 0.1 V
or V
CC
− 0.1 V
V
IL
Maximum Low Level Input Voltage 4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V V
OUT
= 0.1 V
or V
CC
− 0.1 V
V
OH
Minimum High Level Output Voltage 4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
V
I
OUT
= −50 mA
4.5
5.5
−
−
3.86
4.86
3.76
4.76
V *V
IN
= V
IL
or V
IH
−24 mA
I
OH
−24 mA
V
OL
Maximum Low Level Output Voltage 4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
V
I
OUT
= 50 mA
4.5
5.5
−
−
0.36
0.36
0.44
0.44
V *V
IN
= V
IL
or V
IH
24 mA
I
OL
24 mA
I
IN
Maximum Input Leakage Current 5.5 − ±0.1 ±1.0
mA
V
I
= V
CC
, GND
DI
CCT
Additional Max. I
CC
/Input 5.5 0.6 − 1.5 mA V
I
= V
CC
− 2.1 V
I
OZ
Maximum 3−State Current 5.5 − ±0.5 ±5.0
mA
V
I
(OE) = V
IL
, V
IH
V
I
= V
CC
, GND
V
O
= V
CC
, GND
I
OLD
†Minimum Dynamic Output Current
5.5 − − 75 mA V
OLD
= 1.65 V Max
I
OHD
5.5 − − −75 mA V
OHD
= 3.85 V Min
I
CC
Maximum Quiescent Supply Current 5.5 − 8.0 80
mA
V
IN
= V
CC
or GND
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
Symbol
Parameter
V
CC
*
(V)
74ACT 74ACT
Unit
Figure
No.
T
A
= +25°C
C
L
= 50 pF
T
A
= −40°C to +85°C
C
L
= 50 pF
Min Typ Max Min Max
t
PLH
Propagation Delay
Data to Output
5.0 2.0 6.5 9.0 1.5 10.0 ns 3−5
t
PHL
Propagation Delay
Data to Output
5.0 2.0 7.0 9.0 1.5 10.0 ns 3−5
t
PZH
Output Enable Time 5.0 1.5 6.0 8.5 1.0 9.5 ns 3−7
t
PZL
Output Enable Time 5.0 2.0 7.0 9.5 1.5 10.5 ns 3−8
t
PHZ
Output Disable Time 5.0 2.0 7.0 9.5 1.5 10.5 ns 3−7
t
PLZ
Output Disable Time 5.0 2.5 7.5 10.0 2.0 10.5 ns 3−8
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol Parameter Value Typ Unit Test Conditions
C
IN
Input Capacitance 4.5 pF V
CC
= 5.0 V
C
PD
Power Dissipation Capacitance 45 pF V
CC
= 5.0 V
