Sharp R-22AT, R-24AT Description Of Lsi, LSIIXA222DR, Pin No, Signal, Power source voltage GND

R-22AT

R-24AT

DESCRIPTION OF LSI

LSI(IXA222DR)

The I/O signal of the LSI(IXA222DR) is detailed in the following table.

Pin No.	Signal	I/O				Description
1	VCC	IN	Power source voltage: GND.
			VC voltage of power source circuit input. Connected to GND.
2	VEE	IN	Anode (segment) of Fluorescent Display light-up voltage: -35V.
			Vp voltage of power source circuit input.
3	AVSS	IN	Reference voltage input terminal.
			A reference voltage applied to the A/D converter in the LSI. Connected to DC. (-5V)
4	VREF	IN	Reference voltage input terminal.
			A reference voltage applied to the A/D converter in the LSI. Connected to GND.
5-6	AN7-AN6	IN	Terminal to switch the specification.
7	AN5	IN	Temperature measurement input: EXHAUST THERMISTOR
			By inputting DC voltage corresponding to the temperature detected by the thermis-
			tor, this input is converted into temperature by the A/D converter built into the LSI.
8	AN4	IN	Input signal which communicates the door open/close information to LSI.
			Door closed; "H" level signal (0V).
			Door opened; "L" level signal (-5.0V).
9	AN3	-	Terminal not used.
10	AN2	IN	Temperature measurement input: MAGNETRON THERMISTOR TH2.
			By inputting DC voltage corresponding to the temperature detected by the thermis-
			tor, this input is converted into temperature by the A/D converter built into the LSI.
11	AN1	IN	Temperature measurement input: MAGNETRON THERMISTOR TH1.
			By inputting DC voltage corresponding to the temperature detected by the thermis-
			tor, this input is converted into temperature by the A/D converter built into the LSI.
12	AN0	-	Terminal not used.
13-14	P55-P54	-	Terminal not used.
15	P53	OUT	Magnetron (MG1) high-voltage circuit driving signal.
			To turn on and off the cook relay. In 100% power level operation, "L" level during
			cooking; "H" level otherwise. In other power level operation (90, 80, 70, 60, 50, 40,
			30, 20, 10 or 0%), "H" and "L" level is repeated according to power level.
			Power level	ON	OFF	Power level	ON	OFF
			100%	48sec.	0sec.	40%	22sec.	26sec.	OFF		GND
			90%	44sec.	4sec.	30%	16sec.	32sec.
			80%	40sec.	8sec.	20%	12sec.	36sec.		ON	-5V
			70%	36sec.	12sec.	10%	8sec.	40sec.	48 sec.
			60%	32sec.	16sec.	0%	0sec.	48sec.
			50%	26sec.	22sec.
16	P52	-	Terminal not used.
17	P51	OUT	Magnetron (MG2) high-voltage circuit driving signal.
			To turn on and off the cook relay. In 100% power level operation, "L" level during
			cooking; "H" level otherwise. In other power level operation (90, 80, 70, 60, 50, 40,
			30, 20, 10 or 0%), "H" and "L" level is repeated according to power level.
			Power level	ON	OFF	Power level	ON	OFF
			100%	48sec.	0sec.	40%	22sec.	26sec.	OFF		GND
			90%	44sec.	4sec.	30%	16sec.	32sec.
			80%	40sec.	8sec.	20%	12sec.	36sec.		ON	-5V
			70%	36sec.	12sec.	10%	8sec.	40sec.	48 sec.
			60%	32sec.	16sec.	0%	0sec.	48sec.
			50%	26sec.	22sec.
18	P50	-	Terminal not used.

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