Real Time Clocks

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Digi-Key Programmable	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

RX8130CE:B3 IC RTC EVENT REC I2C MODULE EPSON	29,970 In Stock	1 : $2.92000 Cut Tape (CT) 250 : $1.98172 Tape & Reel (TR)	RX8130CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Time Event Recorder	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD	I²C, 2-Wire Serial	1.6V ~ 5.5V	1.1V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	10-SMD Module	Module
RX-8564LC:B0 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	2,582 In Stock	1 : $6.66000 Cut Tape (CT) 1,000 : $3.41754 Tape & Reel (TR)	RX-8564LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.65µA ~ 0.8µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX-8035LC:B3 PURE SN IC RTC EVENT REC I2C 12VSOJ EPSON	1,345 In Stock	1 : $10.05000 Cut Tape (CT) 250 : $7.17912 Tape & Reel (TR)	RX-8035LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX8900CE:UA3 IC RTC CLK/CALENDAR I2C 10SMD EPSON	6,700 In Stock	1 : $10.10000 Cut Tape (CT) 250 : $7.21412 Tape & Reel (TR)	RX8900CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C	2.5V ~ 5.5V	1.6V ~ 5.5V	1.4µA ~ 1.5µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	10-SMD, No Lead	10-SMD
RTC-8564JE:B3:ROHS IC RTC CLK/CALENDAR I2C 20VSOJ EPSON	14,212 In Stock	1 : $10.34000 Cut Tape (CT) 250 : $7.38920 Tape & Reel (TR)	RTC-8564JE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Y2K	-	HH:MM:SS	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.7µA ~ 0.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	20-LSSOJ (0.213", 5.40mm Width)	20-VSOJ
RX8900SA:UA3 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	2,232 In Stock	1 : $10.34000 Cut Tape (CT) 250 : $7.38920 Tape & Reel (TR)	RX8900SA	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C	2.5V ~ 5.5V	1.6V ~ 5.5V	1.4µA ~ 1.5µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.197", 5.00mm Width)	14-SOP
RX-8564LC:B3 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	16,239 In Stock	1 : $11.80000 Cut Tape (CT) 250 : $8.46144 Tape & Reel (TR)	RX-8564LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	0.65µA ~ 0.8µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX8130CE B0 IC RTC TIME EVENT REC I2C 10SMD EPSON	2,988 In Stock	1 : $1.61000 Cut Tape (CT) 1,000 : $0.73140 Tape & Reel (TR)	RX8130CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Time Event Recorder	Alarm	-	-	-	I²C	1.25V ~ 5.5V	-	0.5µA @ 3V	-40°C ~ 85°C	Surface Mount	10-SMD, No Lead	10-SMD
RX8804CE XA3 IC RTC CLK/CALENDAR I2C 10SMD EPSON	4,191 In Stock	1 : $11.09000 Cut Tape (CT) 250 : $7.92064 Tape & Reel (TR)	RX8804CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	-	-	I²C	1.6V ~ 5.5V	-	1.5µA ~ 1.6µA @ 3V ~ 5V	-40°C ~ 105°C	Surface Mount	10-SMD, No Lead	10-SMD
RX8900SA:UB3 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	495 In Stock	1 : $6.31000 Cut Tape (CT) 250 : $4.50500 Tape & Reel (TR)	RX8900SA	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C	2.5V ~ 5.5V	1.6V ~ 5.5V	1.4µA ~ 1.5µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.197", 5.00mm Width)	14-SOP
RX-8571LC:B3 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	7,887 In Stock	1 : $7.57000 Cut Tape (CT) 250 : $5.25300 Tape & Reel (TR)	RX-8571LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	16B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	0.55µA ~ 0.6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX-4571LC:B3 PURE SN IC RTC CLK/CALENDAR SER 12VSOJ EPSON	2,221 In Stock	1 : $7.57000 Cut Tape (CT) 250 : $5.40600 Tape & Reel (TR)	RX-4571LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	3-Wire Serial	1.6V ~ 5.5V	-	0.95µA ~ 1µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX8804CE XB3 IC RTC CLK/CALENDAR I2C 10SMD EPSON	1,732 In Stock	1 : $8.02000 Cut Tape (CT) 250 : $5.73036 Tape & Reel (TR)	RX8804CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	-	-	I²C	1.6V ~ 5.5V	-	1.5µA ~ 1.6µA @ 3V ~ 5V	-40°C ~ 105°C	Surface Mount	10-SMD, No Lead	10-SMD
RX-4045SAAA3 PURE SN IC RTC CLK/CALENDAR SPI 14SOP EPSON	6,325 In Stock	1 : $9.95000 Cut Tape (CT) 250 : $7.10904 Tape & Reel (TR)	RX-4045SA	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.7V ~ 5.5V	-	1.2µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.197", 5.00mm Width)	14-SOP
RX-8803LC:UB3 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	3,488 In Stock	1 : $11.26000 Cut Tape (CT) 250 : $8.31360 Tape & Reel (TR)	RX-8803LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	-	YY-MM-DD	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX-8803LC:UA3 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	1,250 In Stock	1 : $16.38000 Cut Tape (CT) 250 : $12.09248 Tape & Reel (TR)	RX-8803LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	-	YY-MM-DD	I²C, 2-Wire Serial	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX8804CE XB0 IC RTC CLK/CALENDAR I2C 10SMD EPSON	2,219 In Stock	1 : $3.99000 Cut Tape (CT) 1,000 : $2.13000 Tape & Reel (TR)	RX8804CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	I²C	1.6V ~ 5.5V	-	1.5µA ~ 1.6µA @ 3V ~ 5V	-40°C ~ 105°C	Surface Mount	10-SMD, No Lead	10-SMD
RX4901CE XB B06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,000 In Stock	1 : $4.86000 Cut Tape (CT) 2,000 : $2.59500 Tape & Reel (TR)	RX4901CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 3-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD
RX4901CE XB A06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,000 In Stock	1 : $4.86000 Cut Tape (CT) 2,000 : $2.59500 Tape & Reel (TR)	RX4901CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 3-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD
RX4901CE XB D06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,000 In Stock	1 : $4.86000 Cut Tape (CT) 2,000 : $2.59500 Tape & Reel (TR)	RX4901CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 4-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD
RX-8803LC:UB0 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	1,000 In Stock	1 : $6.35000 Cut Tape (CT) 1,000 : $3.39000 Tape & Reel (TR)	RX-8803LC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	I²C	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX4901CE XS B06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,000 In Stock	1 : $6.71000 Cut Tape (CT) 2,000 : $3.58500 Tape & Reel (TR)	RX4901CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 3-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD
RX4901CE XS D06 IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,000 In Stock	1 : $6.71000 Cut Tape (CT) 2,000 : $3.58500 Tape & Reel (TR)	RX4901CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 4-Wire Serial	1.6V ~ 5.5V	-	1.5µA @ 3V	-40°C ~ 105°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD
RX-8025SA:AA3 IC RTC CLK/CALENDAR I2C 14SOP EPSON	18,260 In Stock	1 : $8.68000 Cut Tape (CT) 250 : $6.19856 Tape & Reel (TR)	RX-8025SA	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 5.5V	-	1.2µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.209", 5.30mm Width)	14-SOP
RX4111CE B6 IC RTC CLK/CALENDAR SPI 10SMD EPSON	1,687 In Stock	1 : $2.10000 Cut Tape (CT) 2,000 : $1.00500 Tape & Reel (TR)	RX4111CE	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	SPI, 4-Wire Serial	1.6V ~ 5.5V	-	3µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	10-SMD, No Lead	10-SMD

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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.

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