HD74LS47 Datasheet, PDF (3/7 Pages) Hitachi Semiconductor – BCD-to-Seven Segment Decoder Driver(with 15V outputs)

HD74LS47
Block Diagram
a
A
b
B
Inputs
C
c
D
Blanking Input or
Ripple Blanking
Output (BI/RBO)
Outputs
d
e
f
Lamp Test
Input (LT)
Ripple Blanking
g
Input (RBI)
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
V_CC
7
V
Input voltage
V_IN
7
V
Output current
(tw ≤ 1ms,duty cycle ≤ 10%)
I_O(peak)
200
mA
Output current (off)
I_O(off)
1
mA
Power dissipation
Operating temperature
P_T
400
mW
Tupr
–20 to +75
°C
Storage temperature
Tstg
–65 to +150
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Rev.3.01, May 10, 2006, page 3 of 6