R-7H55
23
Pin No.
Signal
I/O
Description
44
D10
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-1 line keys on key matrix is touched.
45
D11
OUT
Terminal not used.
46
D12
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-3 line keys on key matrix is touched.
47
D13
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-4 line keys on key matrix is touched.
48
R80
OUT
Segment data signal.
Signal similar to D1.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-5 line keys on key matrix is touched.
49
R81
OUT
Segment data signal.
Signal similar to D1.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-6 line keys on key matrix is touched.
50
R82
OUT
Segment data signal.
Signal similar to D1.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-7 line keys on key matrix is touched.
51
R83
OUT
Segment data signal.
Signal similar to D1.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R20-R23 terminal while one
of G-8 line keys on key matrix is touched.
52-55
R90-R93
OUT
Segment data signal.
Signal similar to D1.
56-59
R10-R13
OUT
Segment data signal.
Signal similar to D1.
60
R20
IN
Signal coming from touch key.
When either one of G-9 line keys on key matrix is touched, a corresponding signal will
be input into R20. When no key is touched, the signal is held at "L" level.
61
R21
IN
Signal coming from touch key.
When either one of G-10 line keys on key matrix is touched, a corresponding signal will
be input into R21. When no key is touched, the signal is held at "L" level.
62
R22
IN
Signal coming from touch key.
When either one of G-11 line keys on key matrix is touched, a corresponding signal will
be input into R22. When no key is touched, the signal is held at "L" level.
63
R23
IN
Signal coming from touch key.
When either one of G-12 line keys on key matrix is touched, a corresponding signal will
be input into R23. When no key is touched, the signal is held at "L" level.
64
Vdisp
IN
Anode (segment) of Fluorescent Display illumination voltage: -26V.
Vp voltage of power source circuit input.
Summary of Contents for R-7H55
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