MC74AC240, MC74ACT240
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4
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
Symbol
Parameter
V
CC
*
(V)
74AC 74AC
Unit
Fig.
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
3.3 1.5 6.0 8.0 1.0 9.0
ns 3−5
Data to Output 5.0 1.5 4.5 6.5 1.0 7.0
t
PHL
Propagation Delay
3.3 1.5 5.5 8.0 1.0 8.5
ns 3−5
Data to Output 5.0 1.5 4.5 6.0 1.0 6.5
t
PZH
Output Enable Time
3.3 1.5 6.0 10.5 1.0 11.0
ns 3−7
5.0 1.5 5.0 7.0 1.0 8.0
t
PZL
Output Enable Time
3.3 1.5 7.0 10.0 1.0 11.0
ns 3−8
5.0 1.5 5.5 8.0 1.0 8.5
t
PHZ
Output Disable Time
3.3 1.5 7.0 10.0 1.0 10.5
ns 3−7
5.0 1.5 6.5 9.0 1.0 9.5
t
PLZ
Output Disable Time
3.3 1.5 7.5 10.5 1.0 11.5
ns 3−8
5.0 1.5 6.5 9.0 1.0 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
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 1.5 2.0 2.0
V
V
OUT
= 0.1 V
5.5 1.5 2.0 2.0 or V
CC
− 0.1 V
V
IL
Maximum Low Level
Input Voltage
4.5 1.5 0.8 0.8
V
V
OUT
= 0.1 V
5.5 1.5 0.8 0.8 or V
CC
− 0.1 V
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
OZ
Maximum
3−State
Current
V
I
(OE) = V
IL
, V
IH
5.5 − ±0.5 ±5.0
mA
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.
