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Desk-Top Calculator IC 4-BIT μC - EM73 Series 8-BIT μC - EM78 Series 8-Bit MCU-RISC II Series

4-BIT μC - EM73 Series

4-Bit MCU for General Purpose Product
EM No.	Total pins	VDD(V)	ROM(byte)	RAM(nibble)	I/P	O/P	I/O	External interrupt	Other Function
EM73201	22	2.4~5.5	2048	52	4	4	8	2	IR. WDT. LVR.
EM73E00	28	2.2~3.6	24576	128	8	8	5	-	WDT. LVD.
EM73PE00	28	2.2~3.6	24576	128	8	8	5	-	WDT.

4-Bit MCU for Telecom Product
EM No.	Total pins	VDD(V)	ROM(byte)	RAM(nibble)	Clock	I/P	O/P	I/O	External interrupt	LCD	Other Function
EM73970	100	2.5~5.0	12288	1524	Dual	6	-	31	2	-	WDT. SG. AS. OP AMP. DTMF Tx/Rx. ADPCM. DTS.

4-Bit MCU for LCD Product
EM No.	Total pins	VDD(V)	ROM(byte)	RAM(nibble)	Clock	I/P	I/O	External interrupt	LCD	Speech @6K	Other Function
EM73361A	46	3.0	3072	52	Single	4	16**	2	27x3	-	WDT. SG. LVR.
EM73P361A	46	3.0	3072	52	Single	4	16**	2	27x3	-	WDT. SG. LVR.
EM73362	49	1.5	3072	52	Single	4	16**	2	27x3	-	WDT. RFO. LVD. SG.
EM73P362	49	1.5	3072	52	Single	4	16**	2	27x3	-	WDT. RFO. LVD. SG.
EM73461A	61	3.0	4096	244	Dual	4	8	2	32x4	-	SG. HSC.
EM73P461A	61	3.0	4096/8192	244	Dual	4	8	2	32x4	-	SG. HSC.
EM73461B	61	3.0	4096/8192	244	Dual	4	8	2	32x4	-	SG. HSC. WDT.
EM73469A	61	1.5	4096	244	Dual	4	8	2	32x4	-	SG. HSC.
EM73866	76	3.0/4.5	8192	500	Dual	8	20**	2	32x4	-	SG. WDT. HSC.
EM73880	63	3.0	8192	244	Dual	4	8	2	32x4	26 sec.	SG. WDT. HSC. PWM.
EM73962A	62	3.0/4.5	16384	372	Single	4	4	2	40x8	-	SG.
EM73982	74	3.0/4.5	16384	372	Single	4	8	2	40x8	4 sec.	SG. CDA.
*EM73P982	74	3.0/4.5	16384	372	Single	4	8	2	40x8	4 sec.	SG. CDA.
EM73983	74	3.0/4.5	16384	500	Dual	4	8	2	40x8	26 sec.	SG. WDT. PWM. LCDR.
EM73P968	111	2.2~6.0	16384	2548	Dual	4	32	2	52x5	-	WDT. A/D. SG. HSC. SPI.
EM73963A	69	3.0/4.5	16384	372	Dual	4	8	2	40x8	-	SG.
EM73C63	82	3.0/4.5	32768	500	Dual	4	8	2	40x16	-	SG.
EM73A83	82	3.0/4.5	16384	500	Dual	4	8	2	40x16	26 sec.	SG. WDT. PWM. LCDR.
EM73A88A	109	3.0/4.5	16384	500	Dual	4	8	2	64x16	75 sec.	SG. WDT. LCDR. PWM./CDA.
EM73PA88A	109	3.0/4.5	16384	500	Dual	4	8	2	64x16	75 sec.	SG. WDT. LCDR. PWM./CDA.
EM73A89B	126	3.0	16384	1012	Dual	4	28**	2	64x32	165 sec.	SG. WDT. RFO. LCDR. PWM./CDA.
*EM73MA89B	129	3.0/4.5	16384	1012	Dual	4	28**	2	64x32	165 sec.	SG. WDT. RFO. LCDR. PWM./CDA.

Note:	*--	Under development.	SG--	Sound Generator.
	**--	Some pins are shared with LCD segment pins.	DTMF--	Dual Tone Multiple Frequency.
	IR--	Infrared Control.	AS--	Analog Switch.
	WDT--	Watch Dog Timer.	OP AMP--	OP Amplifier.
	SI--	Serial Interface.	DTS--	Date Time Stamp.
	VR--	Voltage Regulator.	LVD--	Low Voltage Detector.
	RFO--	Resistance to Frequency OSC.	HSC--	High Speed Counter.
	PWM--	Pulse Width Modulation.