10
211M -
Pin No. Signal I/O Description
ON/OFF time ratio in Micro
cooking
(a. 32second time base)
MICRO ON OFF
COOK
100% 32sec. 0sec.
70% 24sec. 8sec.
50% 18sec. 14sec.
30% 12sec. 20sec.
10% 6sec. 26sec.
23 D6 OUT Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay (RY2).
In 100% POWER operation, the sig-
nals hold "L" level during microwave
cooking and "H" level while not cook-
ing. In other cooking modes (70%, 50%,
30%, 10%) the signal turns to "H" level
and "L" level in repetition according to
the power level.
24 D7 IN/OUT Terminal not used.
25 D8 OUT Oven lamp, turntable motor and fan motor driving signal(Square Wave-
form : 50Hz).
To turn on and off shut-off relay
(RY1). The square waveform
voltage is delivered to the relay
(RY1) driving circuit and
relay(RY2) control circuit.
26 NC No connection terminal.
27 F0 IN Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
28 F1 Terminal not used.
29 F2 IN Signal to synchronize LSI with commercial power source frequency.
This is basic timing for all real time
processing of LSI.
30 F3 IN Signal coming from encoder.
Signal similar to INT. Pulse signals are input into F3.
31-32 NC No connection terminal.
33 XOUT OUT Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
34 XIN IN Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation
circuit with respect to XIN terminal.
35 CNTR OUT Signal to sound buzzer.
A: key touch sound.
B: Completion sound.
36 VDD IN Power source voltage: 0V.
The power source voltage to drive the LSI is input to VDD terminal.
20 msec
During cooking
H
L
20 msec
H : GND
L (-5V)
A
B
H: GND
L: -5V
0.12 sec
2.4 sec
DIGITAL ANALOGUE CONTROL PANEL
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