HD74LS48 Datasheet, PDF (4/7 Pages) Hitachi Semiconductor – BCD-to-Seven-Segment Decoder Driver(Internal Pull-up outputs)

HD74LS48
Electrical Characteristics
Item
Symbol min. typ.* max.
Input voltage
VIH
2.0
—
—
VIL
—
—
0.8
a to g
2.4
—
—
BI / RBO
VOH
2.4
—
—
Output voltage a to g
VOL
BI / RBO
—
—
0.4
—
—
0.5
—
—
0.4
—
—
0.5
Output current** a to g
IO
–1.3
—
—
except BI
IIH
/ RBO
Input current
BI / RBO
IIL
—
—
20
—
—
–0.4
—
—
–1.2
except BI
/ RBO
II
—
—
0.1
Short-circuit
output current ^{BI / RBO}
IOS
–0.3
—
–2
Supply current***
ICC
—
25
38
Input clamp voltage
VIK
Notes: * VCC = 5 V, Ta = 25°C
—
—
–1.5
** Input condition as for VOH
*** ICC is measured with all outputs open and inputs at 4.5 V.
Unit
V
V
V
V
V
V
mA
µA
mA
mA
mA
(Ta = –20 to +75 °C)
Condition
IOH = –100 µA V_CC = 4.75 V,
IOH = –50 µA ^VIH ^{= 2 V, V}IL ^{= 0.8 V}
IOL = 2 mA
IOL = 6 mA
VCC = 4.75 V,
IOL = 1.6 mA VIH = 2 V, VIL = 0.8 V
IOL = 3.2 mA
VCC = 4.75 V, VO = 0.85 V,
VCC = 5.25 V, VI = 2.7 V
VCC = 5.25 V, VI = 0.4 V
VCC = 5.25 V, VI = 0.4 V
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
(V_CC = 5 V, Ta = 25°C)
Symbol Input min.
typ.
max.
Unit
Condition
tPHL
tPLH
A
—
—
—
100
—
100
ns
CL = 15 pF, RL = 4 kΩ
tPHL
RBI
—
tPLH
—
—
100
—
100
ns
CL = 15 pF, RL = 6 kΩ
Rev.3.00, Jul.22.2005, page 4 of 6