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	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	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
DS1283S/T&R	Maxim Integrated	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	TIN LEAD	DUAL			ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8					1	CMOS			5 V				R-PDSO-G28	1	Not Qualified		e0
DS17485E-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	5 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1244Y-45	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL				5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1243Y-200	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	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	5.72 mm	15.24 mm		8					0	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS17285E-3+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V			3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	1.2 mm	8 mm		8	.032 MHz	30	260	11.8 mm	1	CMOS		SECONDS	3 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e3
DS1685Q-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ		4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	.032 MHz	20	240	11.505 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e0
DS17885E-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	5 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1687-08	Maxim Integrated	TIMER, REAL TIME CLOCK		THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS					IN-LINE						TIN LEAD	DUAL	5.72 mm	15.24 mm	ALSO OPERATES AT 5V SUPPLY	8					1	CMOS			3 V			2.54 mm	R-PDIP-T28		Not Qualified		e0
DS17885EN-3+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	TSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V			3	SMALL OUTLINE, THIN PROFILE	TSSOP28,.53,22	Y	2.7 V	85 Cel	-40 Cel		DUAL	1.2 mm	8 mm		8		30	260	11.8 mm	1	CMOS		SECONDS	3 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	NO
DS1243Y	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	ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION; SERIAL 64-BIT PROTOCOL	8				38.862 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-P28		Not Qualified	NO	e0
DS1501YE	Maxim Integrated	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,.53,22	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	5 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS17485E-3+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V			3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	3 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	NO	e3
DS1644	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e0
DS1585S	Maxim Integrated		COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL				5	SMALL OUTLINE	SOP28,.5	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	YES	e0
DS1283	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.72 mm	15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8					1	CMOS			5 V			2.54 mm	R-PDIP-T28		Not Qualified		e0
TMPZ84C30AM-8	Toshiba	TIMER, PROGRAMMABLE	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.25 V		8		SMALL OUTLINE			4.75 V	70 Cel	-10 Cel		DUAL	2.7 mm	8.8 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S; SELECTABLE TIMER, COUNTER MODES	8	8 MHz			18.5 mm	4	CMOS	10 mA		5 V		Z80	1.27 mm	R-PDSO-G28		Not Qualified
TMPZ84C30AM-6	Toshiba	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		8		SMALL OUTLINE			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	2.7 mm	8.8 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S; SELECTABLE TIMER, COUNTER MODES	8	6 MHz			18.5 mm	4	CMOS	7 mA		5 V		Z80	1.27 mm	R-PDSO-G28		Not Qualified		e0
TMPZ84C30AP-8	Toshiba	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V		8		IN-LINE			4.75 V	70 Cel	-10 Cel	TIN LEAD	DUAL	5.3 mm	15.24 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S; SELECTABLE TIMER, COUNTER MODES	8	8 MHz			37 mm	4	CMOS	10 mA		5 V		Z80	2.54 mm	R-PDIP-T28		Not Qualified		e0
TMPZ84C30AP-6	Toshiba	TIMER, PROGRAMMABLE	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		8		IN-LINE			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	5.3 mm	15.24 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S; SELECTABLE TIMER, COUNTER MODES	8	6 MHz			37 mm	4	CMOS	7 mA		5 V		Z80	2.54 mm	R-PDIP-T28		Not Qualified		e0
MR82C54-12/883	Renesas Electronics	TIMER, PROGRAMMABLE		NO LEAD	28	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	MIL-STD-883	16		CHIP CARRIER	LCC28,.5SQ	Y	4.5 V	125 Cel	-55 Cel		QUAD	2.54 mm	11.455 mm		8	12 MHz			11.455 mm	3	CMOS	10 mA		5 V			1.27 mm	S-CQCC-N28			NO
84065013A	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	NO LEAD	28	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	MIL-STD-883	16		CHIP CARRIER			4.5 V	125 Cel	-55 Cel	TIN LEAD	QUAD	2.54 mm	11.455 mm		8	8 MHz			11.455 mm	3	CMOS			5 V			1.27 mm	S-CQCC-N28		Qualified		e0
UPD71054L-10	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.6 mm	11.5 mm		8	10 MHz			11.5 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28				e0
UPD71054L	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.6 mm	11.5 mm		8	8 MHz			11.5 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28				e0
84065013X	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	NO LEAD	28	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	MIL-STD-883 Class B			CHIP CARRIER			4.5 V	125 Cel	-55 Cel	Tin/Lead (Sn/Pb)	QUAD				8	8 MHz				3	CMOS			5 V				S-CQCC-N28		Qualified		e0
84065023X	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	NO LEAD	28	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	MIL-STD-883 Class B	16		CHIP CARRIER			4.5 V	125 Cel	-55 Cel	TIN LEAD	QUAD	2.54 mm	11.455 mm		8	12 MHz	NOT SPECIFIED	NOT SPECIFIED	11.455 mm	3	CMOS			5 V			1.27 mm	S-CQCC-N28		Qualified		e0
84065023A	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	NO LEAD	28	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	MIL-STD-883	16		CHIP CARRIER			4.5 V	125 Cel	-55 Cel	TIN LEAD	QUAD	2.54 mm	11.455 mm		8	12 MHz			11.455 mm	3	CMOS			5 V			1.27 mm	S-CQCC-N28		Qualified		e0
CS82C54-12Z	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel	MATTE TIN	QUAD	4.57 mm	11.505 mm		8	12 MHz	30	245	11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	3	Not Qualified		e3
CS82C54M96	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel		QUAD	4.57 mm	11.505 mm		8	8 MHz			11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28		Not Qualified
IS82C54	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	8 MHz		220	11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	3	Not Qualified		e0
KS82C54-8IL	Samsung	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	6 V		16		CHIP CARRIER			4 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.572 mm	11.4808 mm		8				11.4808 mm	3	CMOS	20 mA		5 V		8080; 8085; 8086; 8088; 80286; 80386; 68000	1.27 mm	S-PQCC-J28		Not Qualified		e0
KS82C54-10IL	Samsung	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	6 V		16		CHIP CARRIER			4 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.572 mm	11.4808 mm		8				11.4808 mm	3	CMOS	20 mA		5 V		8080; 8085; 8086; 8088; 80286; 80386; 68000	1.27 mm	S-PQCC-J28		Not Qualified		e0
KS82C54-8CL	Samsung	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	6 V		16		CHIP CARRIER			4 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.572 mm	11.4808 mm		8				11.4808 mm	3	CMOS	20 mA		5 V		8080; 8085; 8086; 8088; 80286; 80386; 68000	1.27 mm	S-PQCC-J28		Not Qualified		e0
KS82C54-10CL	Samsung	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	6 V		16		CHIP CARRIER			4 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.572 mm	11.4808 mm		8				11.4808 mm	3	CMOS	20 mA		5 V		8080; 8085; 8086; 8088; 80286; 80386; 68000	1.27 mm	S-PQCC-J28		Not Qualified		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.