HD74LS247 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 8CD-to-Seven-Segment Decoders/Drivers(with 15V outputs)

HD74LS247
Recommended Operating Conditions
Item
Supply voltage
Operating temperature
Output voltage
a to g
a to g
Output current
BI / RBO
BI / RBO
Symbol
V_CC
Topr
V_{O (off)}
I_{O (on)}
I_OH
I_OL
Min
4.75
–20
—
—
—
—
Typ
5.00
25
—
—
—
—
Max
5.25
75
15
24
-50
3.2
Unit
V
°C
V
mA
µA
mA
a
f gb
e
c
d 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Electrical Characteristics
Item
Input voltage
Symbol
V_IH
V_IL
min.
2.0
—
typ.*
—
—
max.
—
0.8
Unit
V
V
Output
BI/RBO
V_OH
2.4
—
—
V
voltage
—
—
0.4
BI/RBO
V_OL
—
—
0.5
V
Output
current
a to g
I_{O (off)}
—
—
250
µA
Output
voltage
—
—
0.4
a to g
V_{O (on)}
—
—
0.5
V
I_IH
—
—
20
µA
Except
Input current BI/RBO
I_IL
BI/RBI
—
—
–0.4
mA
—
—
–1.2
I_I
—
—
0.1
mA
Short-circuit
output current ^BI/RBO
I_OS
–0.3
—
–2
mA
Supply current**
I_CC
—
7
13
mA
Input clamp voltage
V_IK
—
—
–1.5
V
Notes: * V_CC = 5 V, Ta = 25°C
** I_CC is measured with all outputs open and all inputs at 4.5 V.
(Ta = –20 to +75 °C)
Condition
V_CC = 4.75 V, V_IH = 2 V, V_IL = 0.8 V,
I_OH = –50 µA
I_OL = 1.6 mA V_CC = 4.75 V, V_IH = 2 V,
I_OL = 3.2 mA ^VIL ^{= 0.8 V}
V_CC = 5.25 V, V_IH = 2 V, V_IL = 0.8 V,
V_{O (off)} = 15 V
I_{O (on)} = 12 mA V_CC = 5.25 V, V_IH = 2 V,
I_{O (on)} = 24 mA ^VIL ^{= 0.8 V}
V_CC = 5.25 V, V_I = 2.7 V
V_CC = 5.25 V, V_I = 0.4 V
V_CC = 5.25 V, V_I = 7 V
V_CC = 5.25 V
V_CC = 5.25 V
V_CC = 4.75 V, I_IN = –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
A
—
—
100
t_on
RBI
—
ns
—
100
A
—
—
100
C_L = 15 pF, R_L = 665 Ω
t_off
RBI
—
ns
—
100
Rev.3.00, Jul.15.2005, page 4 of 7