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DESCRIPTION OF LSI
LSI(IZA965DR)
The I/O signal of the LSI(IZA965DR) are detailed in the following table.
Pin No.
Signal
26
P40
27
P77
28
P76
29
P75
30
P74
31
P73
32
P72
33
P71
34
P70
35
RESET
36
P81
37
P80
38
XIN
I/O
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G7 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G6 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G5 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G4 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G3 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G2 line key on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G1 line key on matrix is touched.
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.
IN
Connected to VC.
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.
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay
(RY2). In 100% operation, the
signals hold "L" level during
microwave cooking and "H" level
while not cooking. In other
cooking modes (70%, 50%, 30%,
10%) the signal turns to "H" level
and "L" level in repetition
according to the power level.
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.
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.
Description
ON/OFF time ratio in Mi-
cro cooking
(a. 32second time base)
MICRO
COOK
100%
70%
50%
30%
10%
R-872M - 19
20 msec.
During cooking
ON/OFF time ratio in Mi-
cro cooking
(a. 48second time base)
ON
OFF
MICRO
COOK
32 sec.
0 sec.
100%
48 sec.
70%
36 sec. 12 sec.
24 sec.
8 sec.
50%
26 sec. 22 sec.
18 sec. 14 sec.
12 sec. 20 sec.
30%
16 sec. 32 sec.
10%
6 sec. 26 sec.
Power output
ON time
100 %
48 sec.
90 %
44 sec.
80 %
40 sec.
70 %
36 sec.
60 %
32 sec.
50 %
26 sec.
40 %
22 sec.
30 %
16 sec.
20 %
12 sec.
10 %
8 sec.
H
L
ON
OFF
0 sec.
8 sec. 40 sec.
OFF time
0 sec.
4 sec.
8 sec.
12 sec.
16 sec.
22 sec.
26 sec.
32 sec.
36 sec.
40 sec.
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