R-3A54
R-3E54
PIN NO. 1 11
1 SIGNAL / RI2
I
I/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, R3o -
R32 terminal while one of G7 line keys on key matrix is touched.
PIN NO. 12
Seqment data siqnal.
Signal similar to Dl 1.
SIGNAL RI3
I
I/O
1 OUT
Kev strobe siqnal.
Signal applied to touch-key section.
A pulse signal is input to R23, R3o -
R32 terminal while one of G8 line keys on key matrix is touched.
PIN NO. / 13-15
1 SIGNAL 1 R20- R22
I
I/O
j OUT
Seqment data siqnal. Signal similar to Dll.
(RD939A2U)
PIN NO. 1 16
1 SIGNAL 1 R23
I
l/O
/ IN
Signal cominq from touch kev.
When either one of G9 line keys on key matrix is touched, a corresponding signal out of ROo - ROs, RI o - RI 3
will be input into R23.
When no key is touched, the signal is held at “L” level.
1 SIGNAL / R30
I
I/O
/ IN
PIN NO. j 17
Siqnal cominq from touch kev.
When either one of GIO line keys on key matrix is touched, a corresponding signal will be input into R30.
PIN NO.
1 18
1 SIGNAL 1 R31
1 I/O 1 IN
Siqnal cominq from touch kev.
When either one of Gll line keys on key matrix is touched, a corresponding signal will be input into R31.
1 SIGNAL 1
R32
I
I/O
1 IN PIN NO. 1 19
Siqnal cominq from touch kev.
When either one of G12 line keys on key matrix is touched, a corresponding signal will be input into R32
PIN NO. / 20 1 SIGNAL 1 INT 1
I
I/O
IN
Siqnal svnchronized with commercial source frequencv(50Hz).
This is the basic timing for time processing of LSI.
PIN NO. 1 21 1 SIGNAL 1 GND
Power source voltaqe: -5V
VC voltage of power source circuit input.
I
I/O
1 IN
PIN NO. / 22
Connected to GND.
1 SIGNAL / AVCC
I
I/O
/ IN
PIN NO. 1 23,24
Connected to VC.
1 SIGNAL 1 ANO,ANl
I
I/O
1 IN
PIN NO. 1 25
Terminal not used.
1 SIGNAL 1 AN2
I
I/O
IN
1 SIGNAL / AN3
I
I/O
IN
PIN NO. / 26
Input siqnal which communicates the door open/close information to LSI.
Door closed; “H” level signal.
Door opened;
“L” level signal.
19
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