Sharp R-8320E

Pin No.
Signal
I/O
OUT
Description
Digit selection signal.
The relation between digit signal and digit are as follows:
Digit Signal
Dight
DI1.. .............
Colon
D12
...............
1
D13
...............
2
D14
............... 3
D1s
............... 4
Usually, one pulse is output in every p period, and input into the grid of
Fluorescent Display.
P
13.2 msec.
7
- --GND
GND
Dll
44-I
1.2-1.4 msec. I
D12
0.14 msec.
D13
1
014
D -
! 1.46 msec.
D15
0.14 msec.
s-
-___--------
GND
- - --3ov
71