R-3A54
R-3E54
LSI(IZA415DR)
The I/O signals of
DESCRIPTION OF LSI
the LSI(IZA415DR) are detailed in the following table.
PIN NO. / 1
1 SIGNAL 1 DIO
I
I/O
) OUT
Digit selection sianal.
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 j D?l
I
I/O
1 OUT
Segment data signals.
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. 1 3 1 SIGNAL 1 TGI
I
I/O
/ OUT
Signal to sound buzzer.
A: Key touch sound (0.12 sec.).
B: Completion sound (2.4 sec.).
PIN NO. 1 4
1 SIGNAL 1
Vdisp
I
I/O
1 IN
Anode (segment) of Fluorescent Display illumination voltage: -29V
Vp voltage of power source circuit input.
PIN NO. 1 5
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL 1 ROo
I
I/O
1 OUT
Kev strobe signal.
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. / 6
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL /
ROI
I
I/O
/ OUT
Kev strobe signal.
Signal applied to touch-key section. A pulse signal is input to R23, R30 -
R32 terminal while one of G2 line keys on key matrix is touched.
PIN NO. 1 7
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL 1 RO2
I
I/O
1 OUT
Kev strobe sianal.
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. 1 8
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL ( RO3
I
l/O
1 OUT
Key strobe signal.
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
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL 1
RIO
I
I/O
/ OUT
Key strobe signal.
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
Segment data signal.
Signal similar to Dl 1.
1 SIGNAL / RI1
I
I/O
/ OUT
Key strobe signal.
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.
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