HD74LS47
Recommended Operating Conditions
Item
Supply voltage
Output voltage (off)
Input current (on)
Output current
Operating temperature
Symbol
VCC
VO(off)
IO(on)
IOH
IOL
Topr
Min
4.75
—
—
—
—
–20
Typ
5.00
—
—
—
—
25
Max
5.25
15
24
–50
3.2
75
Unit
V
V
mA
µA
mA
°C
Electrical Characteristics
Item
Input voltage
Symbol
VIH
VIL
min.
2.0
—
typ.*
—
—
max.
—
0.8
VOH
2.4
—
—
Output
voltage
BI / RBO
VOL
—
—
0.4
—
—
0.5
a to g
—
—
0.4
VO(on)
—
—
0.5
Output
current
a to g
IO(off)
—
—
250
IIH
—
—
20
All input
except
Input current BI / RBO
IIL
—
—
–0.4
BI / RBO
—
—
–1.2
II
—
—
0.1
Short-circuit
output current BI / RBO
IOS
–0.3
—
–2
Supply current**
ICC
—
7
13
Input clamp voltage
VIK
—
—
–1.5
Notes: * VCC = 5 V, Ta = 25°C
** ICC is measured with all outputs open and inputs at 4.5 V.
Unit
V
V
V
V
V
µA
µA
(Ta = –20 to +75 °C)
Condition
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V, IOH
= –50 µA
IOL = 1.6 mA
IOL = 3.2 mA
VCC = 4.75 V,
VIH = 2 V, VIL = 0.8 V
IO(on) = 12 mA
IO(on) = 24 mA
VCC = 4.75 V,
VIH = 2 V, VIL = 0.8 V
VCC = 5.25 V, VIH = 2 V, VIL = 0.8 V,
VO(off) = 15 V
VCC = 5.25 V, VI = 2.7 V
mA
VCC = 5.25 V, VI = 0.4 V
mA
mA VCC = 5.25 V, VI = 7 V
mA VCC = 5.25 V
mA VCC = 5.25 V
V VCC = 4.75 V, IIN = –18 mA
Switching Characteristics
Item
Turn-on time
Turn-off time
(VCC = 5 V, Ta = 25°C)
Symbol Input min.
typ.
max.
Unit
Condition
A
—
ton
RBI
—
A
—
toff
RBI
—
—
100
ns
—
100
—
100
CL = 15 pF, RL = 665 Ω
ns
—
100
Rev.3.01, May 10, 2006, page 4 of 6