HD74HC27
Electrical Characteristics
Ta = 25°C
Item
Input voltage
Symbol V
CC
(V)
V
IH
2.0
4.5
6.0
V
IL
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
V
OL
2.0
4.5
6.0
4.5
Input current
Quiescent supply
current
Iin
I
CC
6.0
6.0
6.0
Min
1.5
3.15
4.2
—
—
—
1.9
4.4
5.9
4.18
5.68
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
2.0
4.5
6.0
—
—
0.0
0.0
0.0
—
—
—
—
Max
—
—
—
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.26
0.26
±0.1
1.0
Ta = –40 to+85°C
Min
1.5
3.15
4.2
—
—
—
1.9
4.4
5.9
4.13
5.63
—
—
—
—
—
—
—
Max
—
—
—
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.33
0.33
±1.0
10
V
I
OH
= –4 mA
I
OH
= –5.2 mA
Vin = V
IH
or V
IL
I
OL
= 20
µA
V
Unit
V
Test Conditions
Output voltage
V
OH
V
Vin = V
IH
or V
IL
I
OH
= –20
µA
I
OL
= 4 mA
I
OL
= 5.2 mA
µA
Vin = V
CC
or GND
µA
Vin = V
CC
or GND, Iout = 0
µA
Switching Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25°C
Item
Propagation delay
time
Symbol V
CC
(V)
t
PLH
2.0
4.5
6.0
t
PHL
2.0
4.5
6.0
2.0
4.5
6.0
Output fall time
t
THL
2.0
4.5
6.0
—
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ
—
10
—
—
10
—
—
5
—
—
5
—
5
Max
90
18
15
90
18
15
75
15
13
75
15
13
10
Ta = –40 to +85°C
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
115
23
20
115
23
20
95
19
16
95
19
16
10
ns
ns
Unit
ns
Test Conditions
Output rise time
t
TLH
ns
Input capacitance
Cin
pF
Rev.2.00, Oct 06, 2005 page 3 of 6