RECTANGULAR Timers & Real-Time Clocks 2,400+

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Part	Manufacturer	Peripheral IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Information Access Method	Maximum Supply Voltage	On Chip Data RAM Width	Screening Level	No. of Bits	Maximum Output Clock Frequency	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Interrupt Capability	Minimum Supply Voltage	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	Maximum Seated Height	RAM Words	Width	Additional Features	External Data Bus Width	Maximum Clock Frequency	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	No. of Timers	Technology	Maximum Supply Current	Minimum Time	Nominal Supply Voltage	Sub-Category	Bus Compatibility	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
PCF8583T/F5	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V						SMALL OUTLINE			2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm			.032 MHz			7.55 mm	0	CMOS			5 V			1.27 mm	R-PDSO-G8		Not Qualified		e4
BU9873FJ-GTE2	ROHM	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	LSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V						SMALL OUTLINE, LOW PROFILE			1.8 V	85 Cel	-40 Cel		DUAL	1.65 mm		3.9 mm	SEATED-HGT CALCULATED			NOT SPECIFIED	NOT SPECIFIED	4.9 mm		CMOS			3 V			1.27 mm	R-PDSO-G8
DS12C887A	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V					5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8	.032 MHz			33.782 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e0
DS12C887A+	Analog Devices	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V					5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			33.782 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
DS1302S-16	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V					3/5	SMALL OUTLINE	SOP16,.4	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	2.65 mm		7.5 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz			10.3 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e0
ID82C54	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	5.72 mm		15.24 mm		8	8 MHz				3	CMOS			5 V			2.54 mm	R-CDIP-T24		Not Qualified		e0
M41T11MH6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					2.5/5	SMALL OUTLINE	SOP28,.5	N	3.3 V	85 Cel	-40 Cel	MATTE TIN	DUAL	3.05 mm		8.56 mm			.032 MHz	30	225	18.1 mm		CMOS		SECONDS		Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
MCP795W20-I/ST	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(SPI)	3.6 V	8	TS 16949	8		2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP14,.25	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.2 mm	64	4.4 mm	ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ	0	.032 MHz	40	260	5 mm	1	CMOS	5 mA	1/100 SECOND	3 V	Timer or RTC		.65 mm	R-PDSO-G14	1	Not Qualified	NO	e3
PCF8593T,118	NXP Semiconductors		INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C						3/5	SMALL OUTLINE	SOP8,.25	Y		85 Cel	-40 Cel		DUAL											CMOS		1/100 SECOND		Timers or RTCs		1.27 mm	R-PDSO-G8		Not Qualified	YES
PCF2127AT	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V						SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm		7.5 mm						12.8 mm	1	CMOS			2 V			1.27 mm	R-PDSO-G20
PCF8583T	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V	8				3/5	SMALL OUTLINE	SOP8,.4	Y	2.5 V	85 Cel	-40 Cel		DUAL	2.65 mm	248	7.5 mm	TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING		.1 MHz	40	260	7.55 mm	0	CMOS	.2 mA	1/100 SECOND	5 V	Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	YES
DS1744P-70IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e0
DS1744P-70IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm		23.495 mm		8	.032 MHz			25.019 mm	0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
M48T12-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				5	IN-LINE	DIP24,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm		8	.032 MHz			34.545 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
MCP795W10-I/SL	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(SPI)	3.6 V	8	TS 16949	8		2/5	SMALL OUTLINE	SOP14,.24	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm	ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ	0	.032 MHz	40	260	8.65 mm	1	CMOS	5 mA	1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G14	1	Not Qualified	NO	e3
BQ4802LYPWR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V					3/3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1.2 mm		4.4 mm		8	.032 MHz	30	260	9.7 mm	1	CMOS	9 mA	SECONDS	3 V	Timer or RTC		.65 mm	R-PDSO-G28	1	Not Qualified	NO	e4
CP82C54-12Z	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	6.35 mm		15.24 mm		8	12 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e3
DS9034I-PCX	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V						MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-U34		Not Qualified		e0
DS9034I-PCX+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V						MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-U34		Not Qualified		e3
RX8111CE:A3	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VQCCN	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	I2C	5.5 V	8					CHIP CARRIER, VERY THIN PROFILE	LCC10,.1X.12,27	Y	1.25 V	85 Cel	-40 Cel		QUAD	1 mm	64	2.5 mm		0	.032768 MHz			3.2 mm	1	CMOS		1/1024 SECOND	3 V			.7 mm	R-CQCC-N10			YES
M48T58-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8					IN-LINE	DIP28,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	8184	15.24 mm		8	.032 MHz			39.625 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
MCP795W10-I/ST	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(SPI)	5.5 V	8	TS 16949	8		2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP14,.25	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.2 mm	64	4.4 mm	ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ	0	.032 MHz			5 mm	1	CMOS	5 mA	1/100 SECOND	3 V	Timer or RTC		.65 mm	R-PDSO-G14		Not Qualified	NO	e3
RX8130CE:B3	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10		RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V								Y	1.25 V	85 Cel	-40 Cel	GOLD	QUAD	1 mm		2.5 mm		0	.032768 MHz	30	260	3.2 mm		CMOS	.0005 mA	SECONDS	3 V				R-XQMA-N10			NO	e4
ISL12022MIBZ	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C; SERIAL	5.5 V						SMALL OUTLINE			2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.65 mm		7.5 mm	ALSO OPERATES WITH 5 V NOMINAL	0		30	260	12.8 mm		CMOS			3 V			1.27 mm	R-PDSO-G20	1			e3
M41T82RM6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			8		3/5	SMALL OUTLINE	SOP8,.25	Y	2.7 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.4 MHz	40	260	4.9 mm	1	CMOS		1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e4
DS1744P-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	28		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U28		Not Qualified	NO	e0
DS1744P-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm		23.495 mm		8	.032 MHz			25.019 mm	0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
M41ST85WMX6TR	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V					3/3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.69 mm		7.62 mm			.032 MHz		260	17.96 mm	1	CMOS		1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
PCF85263AT	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V						SMALL OUTLINE			.9 V	85 Cel	-40 Cel		DUAL	1.75 mm		3.9 mm						4.9 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G8
RX-8581NB	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	22	SON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V						SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	1.4 mm		4.8 mm			.032 MHz				0	CMOS			3 V			.5 mm	R-PDSO-N22		Not Qualified
DS1243Y-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V						IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8				38.862 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-P28	1	Not Qualified	NO	e0
DS1243Y-120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V						IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8				38.862 mm		CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-P28		Not Qualified	NO	e3
M41T81SMY6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	18	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					3/5	SMALL OUTLINE	SOP18,.4	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.69 mm		7.62 mm			.032 MHz			11.61 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	R-PDSO-G18	1	Not Qualified	YES	e3
RX-8581NB:B:PURESN	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	22	SON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					2/5	SMALL OUTLINE	SOLCC22,.2,20	Y	1.8 V	85 Cel	-40 Cel	TIN	DUAL	1.4 mm		4.8 mm	LG-MAX		.032 MHz		260	6.3 mm		CMOS		SECONDS	2.7 V	Timer or RTC		.5 mm	R-PDSO-N22		Not Qualified	YES	e3
DS17485-5+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V					5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	5.08 mm		15.24 mm		8	.032 MHz	30	260	31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e3
DS17485-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V					5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm		8	.032 MHz			31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e0
PT7C4311WEX	Diodes Incorporated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8			.000512 MHz	1.8/5	SMALL OUTLINE	SOP8,.25	N	1.5 V	85 Cel	-40 Cel		DUAL	1.75 mm	56	3.9 mm			.032768 MHz			4.9 mm	1	CMOS	.15 mA	SECONDS		Timer or RTC	I2C	1.27 mm	R-PDSO-G8		Not Qualified	NO
RX-8581NBB	Epson Toyocom	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	20	SON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V						SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	TIN/TIN SILVER	DUAL	1.4 mm		4.8 mm			.032 MHz	NOT SPECIFIED	NOT SPECIFIED			CMOS			3 V			.5 mm	R-PDSO-N20		Not Qualified		e3/e2
RX-8581NB:B	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	22	SON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					2/5	SMALL OUTLINE	SOLCC22,.2,20	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.4 mm		4.8 mm	LG-MAX		.032 MHz	NOT SPECIFIED	NOT SPECIFIED	6.3 mm		CMOS		SECONDS	2.7 V	Timer or RTC		.5 mm	R-PDSO-N22		Not Qualified	YES
CDP68HC68T1M	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	6 V	8			.002048 MHz	3.3/5	SMALL OUTLINE	SOP20,.4	Y	3 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL		32				2.1 MHz				1	CMOS	1.2 mA	SECONDS	5 V	Timer or RTC	CDP6805D2	1.27 mm	R-PDSO-G20		Not Qualified	YES	e0
PCF8593T,112	NXP Semiconductors		INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C						3/5	SMALL OUTLINE	SOP8,.25	Y		85 Cel	-40 Cel		DUAL											CMOS		1/100 SECOND		Timers or RTCs		1.27 mm	R-PDSO-G8		Not Qualified	YES
RTC-4553A	Seiko Epson	TIMER, REAL TIME CLOCK	OTHER	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V	4				3/5	SMALL OUTLINE	SOP14,.3	N	2.7 V	70 Cel	-30 Cel	TIN LEAD	DUAL	3.3 mm	30	5 mm			.032 MHz			10.1 mm	0	CMOS	.1 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G14		Not Qualified	YES	e0
RV-1805-C3-32.768KHZ-2PPM-TA-QC	Micro Crystal Ag	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	3.6 V	8	AEC-Q200		.032768 MHz		SMALL OUTLINE, VERY THIN PROFILE	SOLCC10,.098,35	Y	1.5 V	85 Cel	-40 Cel	Gold (Au)	DUAL	.9 mm	256	2.5 mm				40	260	3.7 mm		CMOS	.00008 mA		3 V		I2C	.8 mm	R-PDSO-N10			NO	e4
RX8900CE:UA0	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	I2C	5.5 V						SMALL OUTLINE, VERY THIN PROFILE	SOLCC10,.098,27	Y	2.5 V	85 Cel	-40 Cel		DUAL	1 mm		2.5 mm			.032768 MHz	30	260	3.2 mm		CMOS	.1 mA	SECONDS	3 V			.7 mm	R-CDSO-N10			NO
BQ4287MT-SB2	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V					5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	0 Cel		DUAL					8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO
M48T58Y-70MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn)	DUAL	3.05 mm		8.56 mm		8	.032 MHz	30	245	18.1 mm	0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
PCF2123TS/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			8		1.1/5.5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP14,.25	Y	1.1 V	85 Cel	-40 Cel		DUAL	1.1 mm		4.4 mm		0	.032 MHz		260	5 mm	1	CMOS		SECONDS	2 V	Timer or RTC		.65 mm	R-PDSO-G14	1	Not Qualified	YES
DS1501YZN+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V					5	SMALL OUTLINE	SOP28,.4	Y	4.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	17.9 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e3

Timers & Real-Time Clocks

Timers and real-time clocks (RTCs) are electronic devices that are used to measure and track time intervals in electronic systems. They are crucial components in many applications, such as control systems, automation systems, and consumer electronics.

A timer is an electronic device that is used to measure the duration of time intervals. Timers can be either digital or analog and can be used to measure time intervals ranging from microseconds to hours or even days. They can be used for a variety of applications, such as controlling the duration of a signal or triggering an event after a specified time interval.

A real-time clock (RTC) is a clock that keeps track of the current time and date. Unlike a timer, an RTC is capable of keeping track of time even when the system is powered off. RTCs are commonly used in consumer electronics such as watches, clocks, and digital cameras, as well as in control systems, data loggers, and other applications that require accurate timekeeping.