HD74LS247 Datasheet, PDF (3/8 Pages) Hitachi Semiconductor – 8CD-to-Seven-Segment Decoders/Drivers(with 15V outputs)

HD74LS247
Block Diagram
A
B
Inputs
C
D
BI/BRO
Blanking Input or
Ripple Blanking
Output
Lamp Test
Input
RBI
Ripple Blanking
Input
a
b
c
d ^Outputs
e
f
g
Absolute Maximum Ratings
Item
Symbol
Ratings
Supply voltage
V_CC
7
Input voltage
V_IN
7
Output current (t_w ≤ 1ms, duty cycle ≤ 10%)
I_{O (peak)}
200
Output current (off-state)
I_{O (off)}
1
Operating temperature
Topr
–20 to +75
Power dissipation
P_T
400
Storage temperature
Tstg
–65 to +150
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Unit
V
V
mA
mA
°C
mW
°C
Rev.3.00, Jul.15.2005, page 3 of 7