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.
