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9 -4A54
R-4A54B
DESCRIPTION
OF LSI
LSI( IZA430DR)
The I/O signais of the LSI(IZA430DR)
are detailed
in the following
table.
PIN NO.
I 1
1 SIGNAL
1 D10
I
i/o
/ OUT
Diqit
selection
sinnal.
Refer to the touch control
panel circuit
about the relation
between
signals and digits.
Normally,
one pulse is output
in every synchronized
signal period, and input to the grid of the fluorescent
display.
PIN NO.
/ 2
1 SIGNAL
/ Dll
I
I/O
OUT
Seqment
data siqnals.
Refer to the touch control
panel circuit
for the relationship
between
signals and indicators.
Normally,
one pulse is output
in every synchronized
signal period, and input to the anode of the fluorescent
display.
PIN NO.
/ 3
Siqnal
to sound
buzzer.
1 SIGNAL
/ TGl
I
I/O
j OUT
A:
Key touch sound
(0.12 sec.).
B: Completion
sound (2.4 sec.).
PIN NO.
: 4
1 SIGNAL
j Vdisp
I l/O
IN
Anode
(seqment)
of Fluorescent
Display
illumination
voltaqe:
-29V
Vp voltage
of power source circuit
input.
PIN NO.
/ 5
Seqment
data siqnal.
Signal similar to Dl 1 .
1 SIGNAL
i ROo
I
I/O
j OUT
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R30 -
R32 terminal
while one of Gl line keys on key matrix is touched.
PIN NO.
j 6
Seqment
data sinnal.
Signal similar to Dll
.
SIGNAL
1 R01
I i/O
i OUT
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R3o -
R32 terminal
while
one of G2 line keys on key matrix is touched.
PIN NO.
/ 7
Seqment
data siqnal.
Signal similar to Dll
.
1 SIGNAL
/ ROz
I
l/O
OUT
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R30 -
R32 terminal
while
one of G3 line keys on key matrix is touched.
PIN NO.
/ 8
Seqment
data siqnal.
Signal similar to Dl 1 .
SIGNAL
/ RO3
I I/O
/ OUT
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R30 -
R32 terminal
while
one of G4 line keys on key matrix is touched.
PIN NO.
1 9
Seqment
data siqnal.
Signal similar to 011.
1 SIGNAL
/ Rlo
I I/O
OUT
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R30 -
R32 terminal
while one of G5 line keys on key matrix is touched.
PIN NO.
/ 10
1 SIGNAL
1 RI1
I l/O
j OUT
Seqment
data siqnal.
Signal similar to Dl 1.
Kev strobe
siqnal.
Signal
applied
to touch-key
section.
A pulse signal
is input to R23, R30 -
R32 terminal
while
one of G6 line keys on key matrix is touched.
9
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