Real Time Clocks

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.

Part Number	Manufacturer	Description	Quantity	Price	Option
DS1673S-5+T&R	Maxim Integrated	IC RTC SYSTEM CTRLR SER 20-SOIC	0	$4.90	RFQ
RX-4801SA:UB PURE SN	Epson	IC REAL TIME CLOCK/CALENDAR	0	$4.83	RFQ
RTC-72423B0:PURE SN	Epson	IC RTC CLK/CALENDAR PAR 24-SOP	0	$4.72	RFQ
RX-8803LC:UC PURE SN	Epson	IC RTC CALENDAR I2C 12VSOJ	0	$4.59	RFQ
RTC-7301SF:B0 ROHS	Epson	IC REAL TIME CLOCK/CALENDAR	0	$4.51	RFQ
DS1340C-3#	Maxim Integrated	IC RTC CLK/CALENDAR I2C 16-SOIC	0	$4.48	RFQ
DS1338C-18#	Maxim Integrated	IC RTC CLK/CALENDAR I2C 16-SOIC	0	$4.48	RFQ
DS12885SN+T&R	Maxim Integrated	IC RTC CLK/CALENDAR PAR 24-SOIC	0	$4.48	RFQ
DS1374C-3#	Maxim Integrated	IC RTC BINARY CNT I2C 16-SOIC	0	$4.47	RFQ
RX-4803SA:UA3 PURE SN	Epson	IC RTC CALENDAR SPI 14SOP	0	$4.33	RFQ