COMMERCIAL Timers & Real-Time Clocks 1,183

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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
DS1677E	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm	3-CHANNEL, 8-BIT ADC	1	.032 MHz		245	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1677E+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	1.1 mm		4.4 mm	3-CHANNEL, 8-BIT ADC	1	.032 MHz	30	260	6.5 mm		CMOS			5 V			.65 mm	R-PDSO-G20	1	Not Qualified		e3
DS1743WP-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V			3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS		SECONDS	3.3 V	Timer or RTC			R-XDMA-U34	1	Not Qualified	NO	e0
DS1743WP-120+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V			3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	0 Cel	MATTE TIN	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS		SECONDS	3.3 V	Timer or RTC			R-XDMA-U34		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
M48T37V-10MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		8	3.3	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	Y	3 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	3.3 V	Timer or RTC		.81 mm	R-PDSO-G44	3	Not Qualified	NO	e3
MK48T02B15	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	MICROELECTRONIC ASSEMBLY	DIP24,.6	N	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL		2040		WRITE PROTECT VOLTAGE = 4.5V; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 11 YEARS DATA RETENTION @ 70 DEG C	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO	e0
P8253-5	Rochester 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		DUAL				PROGRAMMABLE MODES	8		NOT SPECIFIED	NOT SPECIFIED		3	NMOS			5 V				R-PDIP-T24
P82C54	Rochester 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		DUAL				6 PROGRAMMABLE MODES	8	8 MHz	NOT SPECIFIED	NOT SPECIFIED		3	CMOS	20 mA		5 V		10MHZ 8086/88; 10MHZ 80186/188		R-PDIP-T24
RTC-72421B	Seiko Epson	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V			5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel		DUAL	4.2 mm		7.62 mm		4	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	22.606 mm	0	CMOS	.01 mA	SECONDS	5 V	Timer or RTC	8048; 8051; 8085	2.54 mm	R-PDIP-T18		Not Qualified	YES
RTC72421B	Fox Electronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL	5.5 V			5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel	TIN LEAD	DUAL			7.62 mm						23.1 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T18		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
BQ4285ES	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel		DUAL	2.67 mm		7.56 mm		8	.032 MHz			15.43 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES
BQ4285LP	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.6 V			3.15	IN-LINE	DIP24,.6	Y	2.7 V	70 Cel	0 Cel		DUAL	5.08 mm		15.24 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	31.75 mm	1	CMOS		SECONDS	3.15 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	YES
BQ4285ESTR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V				SMALL OUTLINE			4.5 V	70 Cel	0 Cel		DUAL	2.67 mm		7.56 mm		8	.032 MHz			15.43 mm	1	CMOS			5 V			1.27 mm	R-PDSO-G24		Not Qualified
BQ4285S-SB2TR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
BQ4285LSTR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.6 V				SMALL OUTLINE			2.7 V	70 Cel	0 Cel		DUAL	2.65 mm		7.5 mm		8	.032 MHz			15.4 mm	1	CMOS			3.15 V			1.27 mm	R-PDSO-G24		Not Qualified
BQ4287EMT	Texas Instruments		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL				5	IN-LINE	DIP24,.6	Y		70 Cel	0 Cel		DUAL											CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO
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
BQ4285P-SB2	Texas Instruments	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			31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
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
BQ4285EP	Texas Instruments	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			31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	YES	e3
BQ4285S	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel		DUAL	2.667 mm		7.56 mm		8	.032 MHz			15.43 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	NO
BQ4285S-SB2G4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
BQ4287MT	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					1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ4285S-SB2	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
BQ4285S-SB2TRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
BQ4285LS	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.6 V			3.15	SMALL OUTLINE	SOP24,.4	Y	2.7 V	70 Cel	0 Cel		DUAL	2.65 mm		7.5 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	15.4 mm	1	CMOS		SECONDS	3.15 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES
BQ4285P	Texas Instruments	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		DUAL	5.842 mm		15.24 mm		8	.032 MHz			32 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO
MM58167BN-T	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				IN-LINE			4.5 V	70 Cel	0 Cel		DUAL	5.334 mm		15.24 mm		8	.032 MHz			31.915 mm		CMOS			5 V			2.54 mm	R-PDIP-T24
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
MM58167MWC	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	NO LEAD		DIE	UNSPECIFIED	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				UNCASED CHIP			4.5 V	70 Cel	0 Cel		UPPER					8	.032 MHz					CMOS			5 V				X-XUUC-N
MM58167AJ	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL	5.5 V				IN-LINE	DIP24,.3	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.715 mm	56	7.62 mm	LENGTH_MAX	8	.000032768 MHz			32.77 mm	0	CMOS	5 mA		5 V			2.54 mm	R-GDIP-T24			YES	e0
MM58167BN/NOPB	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				IN-LINE			4.5 V	70 Cel	0 Cel		DUAL	5.334 mm		15.24 mm		8	.032 MHz			31.915 mm		CMOS			5 V			2.54 mm	R-PDIP-T24
BQ3285ESTRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	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
BQ3285ESTR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
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
BQ3285S	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel		DUAL	2.667 mm		7.56 mm		8	.032 MHz			15.43 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES
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
BQ3285LFSS-A1	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			3/5	SMALL OUTLINE, SHRINK PITCH	SSOP24,.24	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1.73 mm		3.9 mm		8	.032 MHz	30	260	8.65 mm	0	CMOS		SECONDS	3 V	Timer or RTC		.635 mm	R-PDSO-G24	2	Not Qualified	NO	e4
BQ3285LFSS-A1G4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			3/5	SMALL OUTLINE, SHRINK PITCH	SSOP24,.24	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1.73 mm		3.9 mm		8	.032 MHz	30	260	8.65 mm	0	CMOS		SECONDS	3 V	Timer or RTC		.635 mm	R-PDSO-G24	2	Not Qualified	NO	e4
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
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-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

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.