Clock/Timing - Real Time Clocks

Category Introduction

Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.

Product List

2231 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	Product Status	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
	DS12885SN+T&R IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	58	$6.24			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	DS1670E+T&R IC RTC SYSTEM CTRLR SER 20-TSSOP Analog Devices Inc./Maxim Integrated	22	$6.31			Tape & Reel (TR)	Active	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.97V ~ 3.63V	2.5V ~ 3.7V	100µA @ 3.3V	0°C ~ 70°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	DS1673E-3+T&R IC RTC SYSTEM CTRLR SER 20-TSSOP Analog Devices Inc./Maxim Integrated	41	$6.51			Tape & Reel (TR)	Active	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.7V ~ 3.3V	2.5V ~ 3.7V	100µA @ 3V	0°C ~ 70°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	DS12885QN+T&R IC RTC CLK/CALENDAR PAR 28-PLCC Analog Devices Inc./Maxim Integrated	118	$6.52			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-LCC (J-Lead)	28-PLCC (11.51x11.51)
	DS17285S-3+T&R IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	60	$6.58			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	2KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	0°C ~ 70°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	DS17285S-5+T&R IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	80	$6.58			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	2KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	DS1673S-5+T&R IC RTC SYSTEM CTRLR SER 20-SOIC Analog Devices Inc./Maxim Integrated	75	$6.80			Tape & Reel (TR)	Active	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	20-SOIC (0.295", 7.50mm Width)	20-SOIC
	DS1501WZ+T&R IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	118	$7.02			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	DS1558W+TRL IC RTC CLK/CALENDAR PAR 48-LQFP Analog Devices Inc./Maxim Integrated	16	$7.41			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	2.5V ~ 3.7V	2mA @ 3.3V	-40°C ~ 85°C	Surface Mount	48-LQFP	48-LQFP (7x7)
	DS1558Y+TRL IC RTC CLK/CALENDAR PAR 48-LQFP Analog Devices Inc./Maxim Integrated	80	$7.35			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	6mA @ 5V	-40°C ~ 85°C	Surface Mount	48-LQFP	48-LQFP (7x7)
	DS1501YZ+T&R IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	24	$7.50			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	V3025SO28B+ RTC MODULE WITH BUILT IN 32KHZ C EM Microelectronic	119	$8.17			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, RAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	-	2V ~ 5.5V	2V ~ 4V	15µA @ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	DS1685QN-5+ IC RTC CLK/CALENDAR PAR 28-PLCC Analog Devices Inc./Maxim Integrated	105	$8.01			Tube	Active	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	-40°C ~ 85°C	Surface Mount	28-LCC (J-Lead)	28-PLCC (11.51x11.51)
	DS1685QN-3+ IC RTC CLK/CALENDAR PAR 28-PLCC Analog Devices Inc./Maxim Integrated	58	$8.14			Tube	Active	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 3V	-40°C ~ 85°C	Surface Mount	28-LCC (J-Lead)	28-PLCC (11.51x11.51)
	DS1501YZN+T&R IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	29	$8.80			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	DS17485S-5+T&R IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	46	$8.79			Tape & Reel (TR)	Active	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	4KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	DS1501YN+ IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	75	$6.82			Bulk	Not For New Designs	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
	DS1501WZ+ IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	103	$9.47			Tube	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	DS1673E-5+ IC RTC SYSTEM CTRLR SER 20-TSSOP Analog Devices Inc./Maxim Integrated	23	$5.83			Bulk	Active	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	DS1501W+ IC RTC CLK/CALENDAR PAR 28-DIP Analog Devices Inc./Maxim Integrated	89	$5.72			Bulk	Not For New Designs	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	0°C ~ 70°C	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP