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7447.chp
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1987-08-22
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414b
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53 lines
08/23/87
This is a seven-segment LED decoder-driver.
The outputs are inverted.
16
B
C
LAMP TEST
RB output
RB input
D
A
GND
e
d
c
b
a
g
f
Vcc
4
Use pin 3 for
testing the
display LEDs.
done
16
Input B
' C
Lamp Test
Ripple Blanking out.
Ripple Blanking in.
Input D
' A
Ground.
Output E
' D
' C
' B
' A
' G
' F
Vcc (+ 5v)