MC74AC14, MC74ACT14
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4
INPUT CHARACTERISTICS (unless otherwise specified)
Symbol
Parameter
V
CC
(V)
74AC 74ACT
Test Conditions
Maximum Positive Threshold
3.0 2.2 −
V
t
+
4.5 3.2 2.0 V T
A
= Worst Case
5.5 3.9 2.0
Minimum Negative Threshold
3.0 0.5 −
V
t
−
4.5 0.9 0.8 V T
A
= Worst Case
5.5 1.1 0.8
3.0 1.2 −
V
h(max)
Maximum Hysteresis 4.5 1.4 1.2 V T
A
= Worst Case
5.5 1.6 1.2
3.0 0.3 −
V
h(min)
Minimum Hysteresis 4.5 0.4 0.4 V T
A
= Worst Case
5.5 0.5 0.4
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
OH
Minimum High Level Output Voltage
4.5 4.49 4.4 4.4
V
I
OUT
= −50 mA
5.5 5.49 5.4 5.4
*V
IN
= V
IL
or V
IH
4.5 − 3.86 3.76 V
I
OH
−24 mA
5.5 − 4.86 4.76 −24 mA
V
OL
Maximum Low Level Output Voltage
4.5 0.001 0.1 0.1
V
I
OUT
= 50 mA
5.5 0.001 0.1 0.1
*V
IN
= V
IL
or V
IH
4.5 − 0.36 0.44 V
I
OL
24 mA
5.5 − 0.36 0.44 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
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 − 4.0 40
mA
V
IN
= V
CC
or GND
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
*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
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 5.0 1.5 − 11.5 1.0 12.5 ns 3−5
t
PHL
Propagation Delay 5.0 1.5 − 10.0 1.0 11.0 ns 3−5
*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 25 pF V
CC
= 5.0 V
