Sharp R-4H56, Руководство по обслуживанию

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21
R-4H56
Pin No. Signal I/O Description
40 B5 OUT Segment data signal.
Signal similar to B2.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to H0 - H3 terminal while
one of G-4 line keys on key matrix is touched.
41 B6 OUT Segment data signal.
Signal similar to B2.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to H0 - H3 terminal while
one of G-5 line keys on key matrix is touched.
42 B7 OUT Segment data signal.
Signal similar to B2.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to H0 - H3 terminal while
one of G-6 line keys on key matrix is touched.
43 G0 OUT Segment data signal.
Signal similar to B2.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to H0 - H3 terminal while
one of G-7 line keys on key matrix is touched.
44 G1 OUT Segment data signal.
Signal similar to B2.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to H0 - H3 terminal while
one of G-8 line keys on key matrix is touched.
45-49 G2-G6 OUT Segment data signal.
Signal similar to B2.
50 G7 OUT Signal to sound buzzer.
A : Key touch sound.
B : Completion sound.
51 VCC IN Connected to GND.
52 TEST IN Connected to VC (-5.2V).
53 0 OUT OUT Internal clock oscillation frequency control output.
Output to control oscillation input of 0 IN.
54 0 IN IN Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to 0 OUT terminal..
A
B
0.1 sec
2 sec
1 sec
1