Timers & Real-Time Clocks

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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
DS12C887+	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
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
IP82C54-10Z	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16		IN-LINE			4.5 V	85 Cel	-40 Cel	MATTE TIN	DUAL	6.35 mm		15.24 mm		8	10 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		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
STWD100YNXWY3F	STMicroelectronics	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V		AEC-Q100			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			2.7 V	125 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	1.45 mm		1.6 mm		0		30	260	2.9 mm	0	CMOS			5 V			.95 mm	R-PDSO-G5	1			e4
MAX31341CETB+T	Analog Devices	TIMER, REAL TIME CLOCK																				Matte Tin (Sn) - annealed								30	260											1			e3
MAX16998AAUA+	Analog Devices	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES		40 V					SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			5 V	125 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm				30	260	3 mm	1	BICMOS			14 V			.65 mm	S-PDSO-G8	1	Not Qualified		e3
PCA2131TF/Q900Y	NXP Semiconductors	TIMER, REAL TIME CLOCK											AEC-Q100																		260											3
PCF8583T/5	Philips Semiconductors		INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C					3/5	SMALL OUTLINE	SOP8,.4	Y		85 Cel	-40 Cel		DUAL								260			CMOS		1/100 SECOND		Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	YES
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
DS3231S#-W	Maxim Integrated		COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C					3.3	SMALL OUTLINE	SOP16,.4	Y		70 Cel	0 Cel	MATTE TIN	DUAL							30	260			CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	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
HEF4541BT,512	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V					SMALL OUTLINE				85 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	1.75 mm		3.9 mm		0		30	260	8.65 mm	1	CMOS			5 V			1.27 mm	R-PDSO-G14	3	Not Qualified		e4
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
CP82C54-10Z	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	10 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		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
PCF85063TP/1,118	NXP Semiconductors		INDUSTRIAL	NO LEAD	8	SON	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C					1.2/5	SMALL OUTLINE	SOLCC8,.12,20	N		85 Cel	-40 Cel		DUAL											CMOS		SECONDS		Timers or RTCs		.5 mm	R-PDSO-N8		Not Qualified	YES
DS1302Z+TR/C07	Maxim Integrated		COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL					3.3	SMALL OUTLINE	SOP8,.25	N		70 Cel	0 Cel	MATTE TIN	DUAL											CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	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
STWD100NWWY3F	STMicroelectronics	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V					SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			2.7 V	125 Cel	-40 Cel		DUAL	1.45 mm		1.6 mm				NOT SPECIFIED	NOT SPECIFIED	2.9 mm		CMOS			5 V			.95 mm	R-PDSO-G5		Not Qualified
STWD100YNPWY3F	STMicroelectronics	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V		AEC-Q100			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			2.7 V	125 Cel	-40 Cel		DUAL	1.45 mm		1.6 mm		0		NOT SPECIFIED	NOT SPECIFIED	2.9 mm	0	CMOS			5 V			.95 mm	R-PDSO-G5
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
PCF2127AT/1,512	NXP Semiconductors		INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 4 WIRE/SPI					2/4	SMALL OUTLINE	SOP20,.4	Y		85 Cel	-40 Cel		DUAL											CMOS		SECONDS		Timers or RTCs		1.27 mm	R-PDSO-G20		Not Qualified	YES
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
FT7522L6X	Onsemi	TIMER, PROGRAMMABLE	INDUSTRIAL	BUTT	6	VBCC	RECTANGULAR	UNSPECIFIED	YES		5 V					CHIP CARRIER, VERY THIN PROFILE			1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	BOTTOM	.55 mm		1 mm		0		30	260	1.45 mm	0	CMOS						.5 mm	R-XBCC-B6	1			e4
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

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.