Pin No.
Signal
I/O
10
AN0
IN
11-13
P57-P55
OUT
14
CNTR0
OUT
15
P53
OUT
16
P52
OUT
17
P51
OUT
18
P50
OUT
19
P47
OUT
20
P46
IN
21
P45
IN
22
P44
IN
23
P43
IN
24
INT0
IN
25
P41
OUT
26
P40
IN
27
IN
RESET
28-29
P71-P70
OUT
30
XIN
IN
31
XOUT
OUT
32
VSS
IN
33
P27
OUT
Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is
an analog input terminal from the AH sensor circuit, and connected to the A/D converter
built into the LSI.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Signal to sound buzzer (2.0 kHz).
A: key touch sound.
B: Completion sound.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Oven lamp, fan motor and turntable motor driving signal
To turn on and off shut off relay (RY1). The
square waveform voltage is delivered to the
RY1 driving circuit and RY2 control circuit.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Terminal not used.
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay (RY2). The
signals holds "L" level during microwave
cooking and "H" level while not cooking. In
other cooking modes (variable cooking) the
signal turns to "H" level and "L" level in
repetition according to the power level.
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 P46. When no key is touched, the signal is held at "H" level.
Signal similar to P46.
When either G11 line on key matrix is touched, a corresponding signal will be input into P45.
Signal similar to P46.
When either G10 line on key matrix is touched, a corresponding signal will be input into P44.
Signal similar to P46.
When either G9 line on key matrix is touched, a corresponding signal will be input into P43.
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
Terminal not used.
Connected to GND through the pull-down resistor R100.
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied.
Terminal not used.
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XOUT terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
Power source voltage: -5.0V.
VC voltage of power source circuit input.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G8 line keys on key matrix is touched.
15
Description
0.1 sec.
A
2.0 sec.
B
16.7 msec.
During cooking
Maximum
output
70% of maximum
output
R-1514
H : GND
L : -5V
H : GND
L : -5V
H : GND
L : -5V
OFF
H : GND
ON
L : -5V
OFF
OFF
H : GND
24 sec.
8 sec.
ON
L : -5V
H : GND
L : -5V
16.7 msec.
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