28 Timers & Real-Time Clocks 609

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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	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
DS1501WE	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	3 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.2 mm		8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1501WZN+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.4	Y	3 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	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e3
DS1501WZN+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.4	Y	3 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	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e3
DS1511Y	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1511Y+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES	e3
HD6340P	Hitachi	TIMER, PROGRAMMABLE	COMMERCIAL EXTENDED	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16		IN-LINE			4.5 V	75 Cel	-20 Cel	TIN LEAD	DUAL	5.7 mm		15.24 mm	PRESCALED /8 TIMER 3 I/P	8	1 MHz			35.6 mm	3	CMOS	5 mA		5 V		HMCS6800	2.54 mm	R-PDIP-T28		Not Qualified		e0
M41ST85WMH6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V			3/3.3	SMALL OUTLINE	SOP28,.5	Y	2.7 V	85 Cel	-40 Cel	TIN	DUAL	3.05 mm		8.56 mm			.032 MHz			18.1 mm	1	CMOS		1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T18-100PC1	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	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.5V	8	.032 MHz			39.625 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
DP8573AV	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm		11.43 mm	PRESCALED XTAL OSCILLATOR OUTPUT FOR RTC; POWER FAIL I/P FOR BUS LOCK-OUT	8			245	11.43 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e0
BQ4285LQ	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.6 V			3.15	CHIP CARRIER	LDCC28,.5SQ	Y	2.7 V	70 Cel	0 Cel		QUAD					8	.032 MHz				1	CMOS		SECONDS	3.15 V	Timer or RTC		1.27 mm	S-PQCC-J28		Not Qualified	YES
DP8570AVX	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16	3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm		11.43 mm	4 PROGRAMMABLE MODES FOR TIMER; 4 SELECTABLE OSCILLATOR FREQUENCIES	8	10 MHz		245	11.43 mm	2	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e0
DP8570AN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL				3,5	IN-LINE	DIP28,.6	Y		85 Cel	-40 Cel		DUAL							NOT SPECIFIED	NOT SPECIFIED		2	CMOS		1/100 SECOND		Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES
DP8570AVX/NOPB	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16	3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	MATTE TIN	QUAD	4.57 mm		11.43 mm	4 PROGRAMMABLE MODES FOR TIMER; 4 SELECTABLE OSCILLATOR FREQUENCIES	8	10 MHz	30	245	11.43 mm	2	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e3
BQ4285LQN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.6 V			3.15	CHIP CARRIER	LDCC28,.5SQ	Y	2.7 V	85 Cel	-40 Cel		QUAD					8	.032 MHz				1	CMOS		SECONDS	3.15 V	Timer or RTC		1.27 mm	S-PQCC-J28		Not Qualified	YES
BQ4285EQ	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel		QUAD					8	.032 MHz				1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	S-PQCC-J28		Not Qualified	YES
BQ4285Q	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel		QUAD					8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	S-PQCC-J28		Not Qualified	NO
DP8573AVX	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm		11.43 mm	PRESCALED XTAL OSCILLATOR OUTPUT FOR RTC; POWER FAIL I/P FOR BUS LOCK-OUT	8			245	11.43 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e0
BQ4285EQN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD					8	.032 MHz				1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	S-PQCC-J28		Not Qualified	YES	e0
DP8570AV	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16	3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm		11.43 mm	4 PROGRAMMABLE MODES FOR TIMER; 4 SELECTABLE OSCILLATOR FREQUENCIES	8			245	11.43 mm	2	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e0
DP8573AVX/NOPB	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	MATTE TIN	QUAD	4.57 mm		11.51 mm	PRESCALED XTAL OSCILLATOR OUTPUT FOR RTC; POWER FAIL I/P FOR BUS LOCK-OUT	8		30	245	11.51 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e3
MM58167BVX	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				CHIP CARRIER			4.5 V	70 Cel	0 Cel		QUAD	4.57 mm		11.43 mm		8	.032 MHz			11.43 mm		CMOS			5 V			1.27 mm	S-PQCC-J28
BQ4845YS-A4NTRG4	Texas Instruments	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	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4802MT	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS					MICROELECTRONIC ASSEMBLY				70 Cel	0 Cel		DUAL					8					0	CMOS			3.3 V				R-XDMA-T28		Not Qualified
BQ4802YDSHR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.5	Y	4.5 V	70 Cel	0 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz			18.095 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
BQ4802LYDSH	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,.5	Y	2.7 V	70 Cel	0 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.095 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
BQ4845S-A4TRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.75 V	70 Cel	0 Cel		DUAL	2.667 mm		7.5565 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
BQ4833YSH-70	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				SMALL OUTLINE			4.5 V	70 Cel	0 Cel		DUAL					8					0	CMOS			5 V				R-PDSO-G28		Not Qualified
BQ4802SH	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS					SMALL OUTLINE				70 Cel	0 Cel		DUAL					8					0	CMOS			3.3 V				R-PDSO-G28		Not Qualified
BQ4845S-A4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.75 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4845YSN	Texas Instruments	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		DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	YES
BQ4802YPWR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	4.5 V	70 Cel	0 Cel		DUAL	1.2 mm		4.4 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	9.7 mm	1	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G28		Not Qualified	NO
BQ4845S-A4NTRG4	Texas Instruments	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	4.75 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4845S-A4G4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.75 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ3285EQ	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V				CHIP CARRIER			4.5 V	70 Cel	0 Cel		QUAD					8	.032 MHz				1	CMOS			5 V				S-PQCC-J28		Not Qualified
BQ4845YPN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	85 Cel	-40 Cel		DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	YES
BQ4845YP	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel		DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	YES
BQ4845S-A4N	Texas Instruments	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	4.75 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4802YPWRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	4.5 V	70 Cel	0 Cel		DUAL	1.2 mm		4.4 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	9.7 mm	1	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G28		Not Qualified	NO
BQ4845S-A4TR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS	25 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4845YP-A4E3	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel		DUAL	4.826 mm		15.24 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	37.084 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO
BQ4802YDWG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.5 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	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4802S	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS					SMALL OUTLINE				70 Cel	0 Cel		DUAL					8					0	CMOS			3.3 V				R-PDSO-G28		Not Qualified
BQ4802YPWG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	4.5 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	5 V	Timer or RTC		.65 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4845S-A4NTR	Texas Instruments	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	4.75 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4845P	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.75 V	70 Cel	0 Cel		DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	YES
BQ4845YS-A4NG4	Texas Instruments	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		DUAL	2.667 mm		7.5565 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
BQ4845S-A4NG4	Texas Instruments	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	4.75 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.667 mm		7.5565 mm		8	.032 MHz	30	260	17.9705 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
BQ4802LYDWRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3/3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	70 Cel	0 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	2.65 mm		7.5 mm		8	.032 MHz	NOT SPECIFIED	260	17.9 mm	1	CMOS	9 mA	SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4

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.