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-8035SA:AC PURE SN	Epson	IC RTC RECORDER I2C SER 14SOP	0	$3.26	RFQ
RX-8803SA:UB PURE SN	Epson	IC RTC CALENDAR I2C 14SOP	0	$3.53	RFQ
RX-4803SA:UB PURE SN	Epson	IC RTC CALENDAR SPI 14SOP	0	$3.53	RFQ
1339C-31SRI	IDT, Integrated Device Technology Inc	IC RTC CLK/CALENDAR I2C 16-SOIC	0	$3.53	RFQ
BQ4845S-A4TR	Texas Instruments	IC RTC CLK/CALENDAR PAR 28-SOIC	0	$3.86	RFQ
RX-8035LC:AA PURE SN	Epson	IC RTC RECORDER I2C SER 12VSOJ	0	$3.85	RFQ
PT7C4337ACSEX	Diodes Incorporated	IC RTC CAL I2C/2-WIRE SER 16SOIC	0	$3.81	RFQ
RTC-72423A0:PURE SN	Epson	IC RTC CLK/CALENDAR PAR 24-SOP	0	$4.72	RFQ
RX-4803LC:UBB PURE SN	Epson	IC RTC CALENDAR SPI 12VSOJ	0	$4.63	RFQ
DS12885Q+T&R	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-PLCC	0	$4.60	RFQ