17
R-312AW
R-312AK
Pin No. Signal I/O Description
25 R73 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G8 line keys on key matrix is touched.
26 INT2 IN Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
27 R81 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G7 line keys on key matrix is touched.
28 R82 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G6 line keys on key matrix is touched.
29 R83 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G5 line keys on key matrix is touched.
30 R90 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G4 line keys on key matrix is touched.
31 R91 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R60 - R63 terminal while
one of G3 line keys on key matrix is touched.
32 R92 OUT Terminal not used.
33 XIN IN Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the capacitor and resistor circuit with
respect to XOUT terminal.
34 XOUT OUT Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
35 RESET IN Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is supplied. Temporarily set
to "L" level the moment power is supplied, at this time the LSI is reset. Thereafter set at
"H" level.
36 HOLD IN/OUT Connected to GND.
37 VLC IN Signal synchronized with commercial power source frequency.
Signal similar to VSS.
38 COM1 OUT Common data signal: COM1.
Connected to LCD (Pin No. C1)
39 COM2 OUT Common data signal: COM2.
Connected to LCD (Pin No. C2)
40 COM3 OUT Common data signal: COM1.
Connected to LCD (Pin No. C3)
41 COM4 OUT Terminal not used.
42 VDD IN Power source voltage input terminal.
Connected to GND.
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