Sharp MMD24S, MMD24B manual Pin No, Signal, Description, Common data signal, Segment data signal

21

MMD24S

MMD24B

	Pin No.	Signal	I/O	Description
27		COM0	OUT	Common data signal.
				Connected to LCD signal C4.
28		VL3	IN	Connected VC (+5V).
29 - 31		P27- P25	OUT	Terminal not used.
32		SEG20	OUT	Segment data signal.
				Connected to LCD segment S24.
33		P23	IN	Signal coming from touch key.
				When any one of J-4 line keys on key matrix is touched, a corresponding signal from P10-
				P17 will be input into P23. When no key is touched, the signal is held at "L" level.
34		P22	IN	Signal similar to P23.
				When any one of J-3 line keys on key matrix is touched, a corresponding signal will be
				input into P22.
35		P21	IN	Signal similar to P23.
				When any one of J-2 line keys on key matrix is touched, a corresponding signal will be
				input into P21.
36		P20	IN	Signal similar to P23.
				When any one of J-1 line keys on key matrix is touched, a corresponding signal will be
				input into P20.
37		P17	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-12 line key on matrix is touched.
38		P16	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-11 line key on matrix is touched.
39		P15	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-10 line key on matrix is touched.
40		P14	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-9 line key on matrix is touched.
41		P13	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-8 line key on matrix is touched.
42		P12	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-7 line key on matrix is touched.
43		P11	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-6 line key on matrix is touched.
44		P10	OUT	Key strobe signal.
				Signal applied to touch-key section. A pulse signal is input to P20 - P23 terminal while
				one of J-5 line key on matrix is touched.
45		P07	OUT	Fan motor (Drawer) driving signal.
				To turn on and off relay(RY4).	ON		H: +5V
				“H” level: During fan motor ON.				L: GND
				“L” level: During fan motor OFF.		OFF
46		P06	OUT	Stirrer motor driving signal.
				To turn on and off relay(RY3).	ON
				“H” level: During fan motor ON.				H: +5V
				“L” level: During fan motor OFF.				L: GND
						OFF