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R308KW
Pin No.
Signal
I/O
23
COM1
OUT Common data signal.
24
COM2
OUT Common data signal.
25
COM3
OUT Terminal not used.
26-39
SEG0-SEG13
OUT Segment data signal.
40
SEG14
OUT
41
P70
OUT
42
P71
OUT
43
P72
OUT
44
AVDD
IN
45-48
AIN5-AIN2
IN
49
AIN1
IN
50
AIN0
IN
51
AVSS
IN
52
P11
IN
53
P10
OUT
54
P33
OUT
55
P32
OUT
56
P31
OUT
57
INTP0
IN
58
P26
OUT
59
P25
OUT
60
P24
OUT
61
P23
OUT
Connected to LCD signal COM2.
Connected to LCD signal COM3.
Connected to LCD.The relation between signals are as follows:
LSI signal (Pin No.)
LCD (segment)
SEG 0 (26) ----------------- SEG 1
SEG 1 (27) ----------------- SEG 2
SEG 2 (28) ----------------- SEG 3
SEG 3 (29) ----------------- SEG 4
SEG 4 (30) ----------------- SEG 5
SEG 5 (31) ----------------- SEG 6
SEG 6 (32) ----------------- SEG 7
Terminal not used.
Oven lamp, fan motor and turntable motor driving signal
To turn on and off shut off relay (RY1). The square wave-
form voltage is delivered to the RY1 driving circuit and
RY2 control circuit.
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.
A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI. Connected to GND.
Terminal to change cooking input according to the Model.
By using the A/D converter contained in the LSI, DC voltage in accordance with the Model in operation is
applied to set up its cooking constant.
This is the terminal to detect the voltage of the signal coming from the touch key.
Signal similar to AIN1.
A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI.
To input signal which communicates the door open/close information to LSI.
Door close "H" level signal (0V). Door open "L" level signal (-5V)
Terminal not used.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G1
line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G2
line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G3
line keys on key matrix is touched.
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G4
line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G5
line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G6
line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53 terminal while one of G7
line keys on key matrix is touched.
Description
LSI signal (Pin No.)
SEG 7 (33) ----------------- SEG 8
SEG 8 (34) ----------------- SEG 9
SEG 9 (35) ----------------- SEG 10
SEG 10 (36) ---------------- SEG 11
SEG 11 (37) ---------------- SEG 12
SEG 12 (38) ---------------- SEG 13
SEG 13 (39) ---------------- SEG 14
9 – 2
LCD (segment)
16.7 msec.
During cooking
OFF
H : GND
Maximum
output
ON
L : -5V
OFF
OFF
H : GND
24 sec.
70% of maximum
output
8 sec.
ON
L : -5V
H : GND
L : -5V
16.7 msec.
H : GND
L : -5V
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