R-9HlO
Pin No,
41
42
43
44
45
46
47
48
Signal
P15
P14
P13
P12
Pll
PlO
PO7
PO6
I/O
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Description
Digit selection signal.
The relationship between digit signal and digit are as follows;
Digit signal
digit
P15 . . . . . . . . . . ..*............. 1st
---- ---- --__ ----C&JO
P12 . . . . . . . . . . ..I.............
2nd
PO6
. . . . . . . . . . . . . . . . . . . . . . . . . .
3rd
PO3
. . . . . . . . . . ..a.............
4th
P27
. . . . . . . ..*................
5th
PO6 n
P24 . . . . . . . . . . . . . . . . . . . . . . . . . . 6th
PO3 n
Normally, one pulse is output in every
I3 period, and input to the grid of the
P27 n .
Fluorescent Display.
P24 d
1) Segment data signal.
Signal similar to P16.
1) Segment data signal.
Signal similar to P16.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-l 1 line keys on key
matrix is touched.
Digit selection signal.
Signal similar to P15.
1) Segment data signal.
Signal similar to P16.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-10 line keys on key
matrix is touched.
1) Segment data signal.
Signal similar to P16.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-9 line keys on key
matrix is touched.
1) Segment data signal.
Signal similar to P16.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-8 line keys on key
matrix is touched.
Digit selection signal.
Signal similar to Pl5.
27