21
R-330BK
R-330BW
LSI(IZA866DR)
The I/O signal of the LSI(IZA866DR) is detailed in the following table.
Pin No. Signal I/O Description
1 AN8 IN Signal coming from touch key.
When either G12 line on key matrix is touched, a corresponding signal out of P20 - P27 will
be input into AN8. When no key is touched, the signal is held at "H" level.
2 AN9 IN
Signal similar to AN8.
When either G11 line on key matrix is touched, a corresponding signal will be input into AN9.
3 AN10 IN
Signal similar to AN8.
When either G10 line on key matrix is touched, a corresponding signal will be input into AN10.
4 AN11 IN
Signal similar to AN8.
When either G9 line on key matrix is touched, a corresponding signal will be input into AN11.
5 AVSS IN
A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI. Connected to VC.
6 TEST IN Connected to VC.
7 X2 OUT Terminal not used.
8 X1 IN Connected to GND.
9 VSS IN
Power source voltage: -5V.
The power source voltage to drive the LSI is input to VSS terminal. Connected to VC.
10 OSC1 IN
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect
to OSC1 terminal.
11 OSC2 OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of OSC2.
12 RESET IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set to
"L" level the moment power is applied, at this time the LSI is reset. Thereafter set at "H" level.
13 MD0 IN Connected to GND.
14 P20 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G8 line keys on key matrix is touched.
15 P21 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G7 line keys on key matrix is touched.
16 P22 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G6 line keys on key matrix is touched.
17 P23 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G5 line keys on key matrix is touched.
18 P24 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G4 line keys on key matrix is touched.
19 P25 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G3 line keys on key matrix is touched.
20 P26 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G2 line keys on key matrix is touched.
21 P27 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8 - AN11 terminal while one
of G1 line keys on key matrix is touched.
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