TIMER, REAL TIME CLOCK 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	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
DS1340Z-3+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V				3	SMALL OUTLINE	SOP8,.25	N	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm		CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
ISL12008IB8Z	Renesas Electronics	TIMER, REAL TIME CLOCK																				MATTE TIN								30	260											1			e3
ISL12008IB8Z-T	Renesas Electronics	TIMER, REAL TIME CLOCK		GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V					SMALL OUTLINE	SOP8,.25	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm		3.9 mm			.032768 MHz	30	260	4.9 mm		CMOS	.00012 mA	SECONDS	3 V			1.27 mm	R-PDSO-G8	1		NO	e3
PCF8563P/F4,112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V				2/5	IN-LINE	DIP8,.3	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm		7.62 mm			.032 MHz			9.5 mm	0	CMOS		SECONDS	2 V	Timer or RTC		2.54 mm	R-PDIP-T8		Not Qualified	YES	e4
PCF2127AT/2	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	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	12.8 mm	1	CMOS			2 V			1.27 mm	R-PDSO-G20	3			e4
PCF85363ATL/AX	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8				SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC10,.11,20	Y	.9 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	.5 mm	64	2.6 mm			.032768 MHz	30	260	2.6 mm		CMOS		SECONDS	3 V			.5 mm	S-PDSO-N10	1		YES	e4
RX6110SA:B3:PURESN	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C; SERIAL	5.5 V					SMALL OUTLINE			1.6 V	85 Cel	-40 Cel	TIN	DUAL	3.3 mm		5 mm		0			260	10.1 mm		CMOS			3 V			1.27 mm	R-PDSO-G14				e3
DS12C887	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		Not Qualified	NO	e0
DS1742W-120+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	IN-LINE	DIP24,.6	N	2.97 V	70 Cel	0 Cel	MATTE TIN	DUAL	8.51 mm		15.24 mm		8	.032 MHz			37.595 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-P24		Not Qualified	NO	e3
DS1742W-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	IN-LINE	DIP24,.6	N	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	8.51 mm		15.24 mm		8	.032 MHz			37.595 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-P24		Not Qualified	NO	e0
PCF85063AT-ARD	NXP Semiconductors	TIMER, REAL TIME CLOCK																												NOT SPECIFIED	NOT SPECIFIED
PCF85363ATT1/AJ	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	85 Cel	-40 Cel		DUAL	1.1 mm		3 mm					260	3 mm	1	CMOS			3.3 V			.5 mm	S-PDSO-G10	1
DS1306E	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm		0	.032 MHz		245	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1306E+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
PCF8563TS/4	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm		3 mm		0	.032 MHz	30	260	3 mm	1	CMOS		SECONDS	2 V	Timer or RTC		.65 mm	R-PDSO-G8	1	Not Qualified	YES	e4
PT7C4337WEX	Diodes Incorporated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				2/5	SMALL OUTLINE	SOP8,.25	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.75 mm		3.9 mm			.032768 MHz			4.9 mm	1	CMOS	.15 mA	SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	YES
DS1388Z-3	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V				3	SMALL OUTLINE	SOP8,.25	Y	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm		CMOS		1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	NO	e0
DS1388Z-3+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V				3	SMALL OUTLINE	SOP8,.25	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm		CMOS		1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
PCF85063TP/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel		DUAL	.8 mm		2 mm	ALSO OPERATES AT 1.8 V AT 400KHZ		.032 MHz			3 mm	1	CMOS			3.3 V			.5 mm	R-PDSO-N8
M48T02-70PC1	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	4.75 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
MCP7940N-E/MS	Microchip Technology	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	AEC-Q100		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	125 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm		0	.032 MHz	40	260	3 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	YES	e3
MAX31341CETB+T	Analog Devices	TIMER, REAL TIME CLOCK																				Matte Tin (Sn) - annealed								30	260											1			e3
PCA2131TF/Q900Y	NXP Semiconductors	TIMER, REAL TIME CLOCK											AEC-Q100																		260											3
DS1305E	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm		0	.032 MHz	20	240	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1305E+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
DS1305E/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm		0	.032 MHz			6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1305E+T&R	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
DS1338U-33+T&R/C01	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			3 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm		3 mm				30	260	3 mm	1	CMOS			3.3 V			.65 mm	S-PDSO-G8	1			e3
RTC-72423A3:PURESN	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL	5.5 V			4	5	SMALL OUTLINE	SOP24,.5	N	4.5 V	85 Cel	-40 Cel	TIN	DUAL	2.8 mm		7.9 mm	LG-MAX	4			260	16.3 mm		CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e3
MCP79400T-I/SN	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm		0	.032 MHz	30	260	4.9 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
M48T58Y-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	4.5 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
CDP68HC68T1M2Z	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	6 V	8				SMALL OUTLINE	SOP16,.4	Y	3 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.65 mm	32	7.5 mm		8		30	260	10.3 mm	1	CMOS	.01 mA	SECONDS	5 V		SPI	1.27 mm	R-PDSO-G16	3		NO	e3
M48T02-150PC1	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	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.5V	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
M41T93RMY6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	18	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 4 WIRE/SPI	5.5 V			8	3/5	SMALL OUTLINE	SOP18,.4	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.69 mm		7.62 mm			5 MHz	30	240	11.61 mm	1	CMOS		1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G18	1	Not Qualified	NO	e3
DS9034PCX	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				3.3/5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34	1	Not Qualified	NO	e0
DS9034PCX+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				3.3/5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	GOLD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e4
M41T81SMY6E	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	30	240	11.61 mm	1	CMOS		1/100 SECOND	5 V	Timers or RTCs		1.27 mm	R-PDSO-G18	1	Not Qualified	YES	e3
PT7C4372ALEX	Diodes Incorporated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	6 V				2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.25	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.2 mm		3 mm			.032768 MHz			4.4 mm	1	CMOS		SECONDS	3 V	Timer or RTC		.65 mm	R-PDSO-G8		Not Qualified	NO
BQ4802LYDW	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V				3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	17.9 mm	1	CMOS	9 mA	SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e4
DS1340U-33/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm		3 mm			.032 MHz			3 mm		CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e0
DS1340U-33+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE	TSSOP8,.19	N	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm		CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
ISL1208IU8Z-TK	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.2	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	2	3 mm		0	.032768 MHz	30	260	3 mm		CMOS	.004 mA	SECONDS	3 V			.65 mm	S-PDSO-G8	2		NO	e3
CDP68HC68T1M2Z96	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.25 V				3.3/5	SMALL OUTLINE	SOP16,.4	Y	4.75 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm			4.1943 MHz	30	260	10.3 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		1.27 mm	R-PDSO-G16	3	Not Qualified	YES	e3
MCP79400T-I/MS	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm		0	.032 MHz			3 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
PCF8593T/1,112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				3/5	SMALL OUTLINE	SOP8,.25	Y	2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.032 MHz		260	4.9 mm	0	CMOS		1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
DS1340U-33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm		3 mm			.032 MHz			3 mm		CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e0
DS1340U-33+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm		CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
DS1746-70IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	N	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.27 mm		15.24 mm		8	.032 MHz			38.675 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDIP-P32	1	Not Qualified	NO	e0

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.