Datasheet

DC SPECIFICATIONS
Symbol Parameter
Test Conditions Value
Unit
V
CC
(V)
T
A
=25
o
C
54HC and 74HC
-40 to 85
o
C
74HC
-55 to 125
o
C
54HC
Min. Typ. Max. Min. Max. Min. Max.
V
IH
High Level Input
Voltage
4.5
to
5.5
2.0 2.0 2.0 V
V
IL
Low Level Input
Voltage
4.5
to
5.5
0.8 0.8 0.8 V
V
OH
High Level
Output Voltage
4.5
V
I
=
V
IH
or
V
IL
I
O
=-20 µA 4.4 4.5 4.4 4.4
V
I
O
=-6.0 mA 4.18 4.31 4.13 4.10
V
OL
Low Level Output
Voltage
4.5
V
I
=
V
IH
or
V
IL
I
O
=20µA 0.0 0.1 0.1 0.1
V
I
O
= 6.0 mA 0.17 0.26 0.33 0.4
I
I
Input Leakage
Current
5.5
V
I
=V
CC
or GND ±0.1 ±1 ±1 µA
I
CC
Quiescent Supply
Current
5.5 V
I
=V
CC
or GND 4 40 80 µA
I
OZ
3 State Output
Off State Current
6.0
V
I
=V
IH
or V
IL
V
O
=V
CC
or GND
±0.5 ±5 ±10 µA
∆I
CC
Additional worst
case supply
current
5.5 Per Input pin
V
I
= 0.5V or
V
I
= 2.4V
Other Inputs at
V
CC
or GND
I
O
=0
2.0 2.9 3.0 mA
AC ELECTRICAL CHARACTERISTICS (Input t
r
=t
f
=6ns)
Symbol Parameter
Test Conditions Value
Unit
V
CC
(V)
C
L
(pF)
T
A
=25
o
C
54HC and 74HC
-40 to 85
o
C
74HC
-55 to 125
o
C
54HC
Min. Typ. Max. Min. Max. Min. Max.
t
TLH
t
THL
Output Transition
Time
4.5 50 7 12 15 18 ns
t
PLH
t
PHL
Propagation
Delay Time
4.5 50 13 21 26 32 ns
4.5 150 17 27 34 41 ns
t
PZL
t
PZH
3 State Output
Enable Time
4.5 50 R
L
=1KΩ 15 24 30 36 ns
4.5 150 R
L
=1KΩ 19 30 38 45 ns
t
PLZ
t
PHZ
3 State Output
Disable Time
4.5 50 R
L
=1KΩ 17 24 30 36 ns
C
IN
Input Capacitance 5 10 10 10 pF
C
PD
(*) Power Dissipation
Capacitance
56
pF
(*) C
PD
isdefined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by the following equation. I
CC
(opr) = C
PD
•V
CC
•f
IN
+I
CC
M54/M74HCT125/126
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