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:AAB PURE SN	Epson	IC RTC CALENDAR SPI 12VSOJ	0	$5.98	RFQ
RTC-72423B3:PURE SN	Epson	IC RTC CLK/CALENDAR PAR 24-SOP	0	$5.95	RFQ
RTC-72423A3:PURE SN	Epson	IC RTC CLK/CALENDAR PAR 24-SOP	0	$5.95	RFQ
DS1315EN-33+T&R	Maxim Integrated	IC RTC PHANTOM PAR 20-TSSOP	0	$9.99	RFQ
DS17485S-3+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 24-SOIC	0	$9.71	RFQ
PCA8565AU/5BB/1,01	NXP USA Inc.	IC RTC CLK/CALENDAR I2C UNCASED	0	$0.56	RFQ
PCF8523AUG/HAV	NXP USA Inc.	IC RTC CLK/CALENDAR I2C 12WLCSP	0	$0.38	RFQ
PCF8564AUG/12HB/1V	NXP USA Inc.	IC RTC CLK/CALENDAR I2C DIE	0	$0.38	RFQ
BQ3287EMT	Texas Instruments	IC RTC CLK/CALENDAR PAR 24-DIP	0	$0.00	RFQ
BQ3287EAMT	Texas Instruments	IC RTC CLK/CALENDAR PAR 24-DIP	0	$0.00	RFQ