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
RX-4803LC:UA3 PURE SN	Epson	IC RTC CLK/CALENDAR SPI 12-VSOJ	0	$5.59	RFQ
RX-4803LC:UC3 PURE SN	Epson	IC RTC CALENDAR SPI 12VSOJ	0	$5.49	RFQ
RX-4803LC:AA3 PURE SN	Epson	IC RTC CALENDAR SPI 12VSOJ	0	$5.49	RFQ
DS1501YZ+T&R	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-SOIC	0	$5.37	RFQ
BQ4802LYPWG4	Texas Instruments	IC RTC CLK/CALENDAR PAR 28-TSSOP	0	$5.34	RFQ
RX-8803SA:UA PURE SN	Epson	IC RTC CALENDAR I2C 14SOP	0	$5.27	RFQ
RX-4803SA:UAB PURE SN	Epson	IC RTC CALENDAR SPI 14SOP	0	$5.27	RFQ
BQ4802YDWRG4	Texas Instruments	IC RTC CLK/CALENDAR PAR 28-SOIC	0	$5.06	RFQ
DS1501WZ+T&R	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-SOIC	0	$5.05	RFQ
DS1685Q-5+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-PLCC	0	$4.90	RFQ