HD74LS139
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol
VIH
min.
2.0
—
typ.*
—
max.
—
Unit
V
Condition
Input voltage
VIL
—
0.8
—
V
VOH
2.7
—
V
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,
IOH = –400 µA
Output voltage
—
—
—
—
—
—
—
—
—
—
0.4
0.5
20
IOL = 4 mA
IOL = 8 mA
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V
VOL
V
IIH
IIL
II
µA
mA
mA
VCC = 5.25 V, VI = 2.7 V
VCC = 5.25 V, VI = 0.4 V
VCC = 5.25 V, VI = 7 V
Input current
–0.4
0.1
Short-circuit output
current
IOS
–5
—
–42
mA
VCC = 5.25 V
Supply current
ICC
VIK
—
—
6.8
—
11
mA
V
VCC = 5.25 V, Outputs enabled and open
VCC = 4.75 V, IIN = –18 mA
Input clamp voltage
–1.5
Note: * VCC = 5 V, Ta = 25°C
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Levels
of delay
Item
Symbol
Inputs
Output
min.
typ.
max.
Unit
Condition
tPLH
tPHL
tPLH
tPLH
tPLH
tPHL
—
—
—
—
—
—
13
22
18
25
16
21
20
33
29
38
24
32
ns
ns
ns
ns
ns
ns
Binary
select
1A, 1B
2A, 2B
2
1Y0 to 1Y3
2Y0 to 2Y3
Propagation
delay time
CL = 15 pF,
RL = 2 kΩ
3
2
Enable
1G, 2G 2Y0 to 2Y3
1Y0 to 1Y3
Rev.2.00, Feb.18.2005, page 3 of 6