Sharp R-9X55

[PIN NO.1 SIGNAL 1 I/O 1
DESCRIPTION
-7%-p-
/
Seament data sianals.
Signal similar to PI 7
Kev strobe sianals.
Signal applied to touch-key section. A pulse is input to RO-R3 terminal while one of G-7
line keys on key matrix is touched.
Seament data sianals.
Signal similar to P17
Kev strobe sianals.
Signal applied to touch-key section. A pulse is input to RO-R3 terminal while one of G-8
line keys on key matrix is touched.
Seament data sianals.
Signal similar to P17
Seament data sianals.
Signal similar to P17
Kev strobe sianals.
Signal applied to touch-key section. A pulse is input to RO-R3 terminal while one of G-9
line keys on key matrix is touched.
Seament data sianals.
Signal similar to P17
Seament data sianals.
Signal similar to P17
Kev strobe sianals.
.
Signal applied to touch-key section. A pulse is input to RO-R3 terminal while one of G-l 1
line keys on key matrix is touched.
Seament data sianals.
Signal similar to PI 7
Kev strobe sianals.
Signa! applied to touch-key section. A pulse is inDui to RO-R3 terminal while one of G-12
line keys on key matrix is touched.
/ 46
PlO j OUT
I
/
/
i 51-52
I
I
/
f
53
I
PO3-PO2 1 OUT
/
,
PO1
: OUT
I
I
L
/
.--.--_A- _ .-
-
P..-
32
p,:
OU? Seament data sianals.
Signal similar to P17
56
P26 OUT Diait selection sianal.
The relationship between digit signal and digit are
H
Bt5O-k
as follows:
__. L
-_______________
GND
i
vp
Digit sgnai
Digi
“26 1 si.
P25 2nd.
P24
3rd.
P23 4th.
P24 d
n
P22 5th.
P21
6th.
Normally. one pulse is output in every period,
and input to the grid of the Fluorescent Display.
Diait selection sianal.
Signal similar to P26.
p23 - -
P22 .--n-n-
P21 n
Terminal not used.
Connected to GND.
~.. -
28
j 57-61
t
/ P25-P2l / OUT
/
I
I
t
i 62 ,
P20
OUT
/
!
i
i 63-64 ; AVCCNSS j IN
_____- -.-
T
I
t