23
Pin No.
Signal
I/O
Description
23
INT0
IN
Signal to synchronized LSI with commercial power source frequency(50Hz).
This is basic timing for time processing
of LSI.
24
CNVSS
IN
Connected to VC.
25
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.
26
P41
IN/OUT
Memory (EEPROM) data input/output.
27
P40
OUT
Memory (EEPROM) clock out.
28
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.
29
XOUT
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
30
VSS
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
31
P27
OUT
Grill (TOP) heating element driving signal.
To turn on and off the grill heating element
relay (RY3). "L" level during grill cooking,
convection cooking or dual cooking, "H"
level otherwise. The heater relay turns on
and off within a 48 second time base in
accordance with the special program in LSI.
32
P26
OUT
Convection heating element driving signal.
To turn on and off the relay (RY4). "L" level
during grill cooking, convection cooking or
dual cooking, "H" level otherwise.
The heater relay turns on and off within a 48
second time base in accordance with the
special program in LSI.
33
P25
OUT
Oven lamp and turntable motor driving signal(Square Waveform : 50Hz).
To turn on and off shut-off relay (RY1). The
square waveform voltage is delivered to the
relay (RY1) driving circuit.
34
P24
OUT
Convection motor driving signal.
To turn on and off shut-off relay(RY7). "L"
level during convection or dual cooking "H"
level otherwise. (Relay RY7 does not turn
on at preheating mode.)
35
P23
OUT
Fan motor driving signal.
To turn on and off the fan motor relay RY6.
"L" level during cooking, or for 5 minutes
after grill cooking or for a while after
convection or dual cooking. "H" level
otherwise.
36
P22
OUT
Terminal not used.
Power output
ON time
OFF time
100 %
48 sec.
0 sec.
90 %
44 sec.
4 sec.
80 %
40 sec.
8 sec.
70 %
36 sec.
12 sec.
60 %
32 sec.
16 sec.
50 %
26 sec.
22 sec.
40 %
22 sec.
26 sec.
30 %
16 sec.
32 sec.
20 %
12 sec.
36 sec.
10 %
8 sec.
40 sec.
Power output
ON time
OFF time
100 %
48 sec.
0 sec.
90 %
44 sec.
4 sec.
80 %
40 sec.
8 sec.
70 %
36 sec.
12 sec.
60 %
32 sec.
16 sec.
50 %
26 sec.
22 sec.
40 %
22 sec.
26 sec.
30 %
16 sec.
32 sec.
20 %
12 sec.
36 sec.
10 %
8 sec.
40 sec.
20 msec.
H : GND
L (-5V)
During cooking
L
H
20 msec.
ON
OFF
During cooking or for awhile after
grill convection or dual.
L
GND
H.
ON
OFF
During
cooking
L
GND
H.
(Convection or dual cooking)
DESCRIPTION OF LSI
