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
MCP795W21T-I/ST	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-TSSOP	0	$1.56	RFQ
1338-18DVGI8	IDT, Integrated Device Technology Inc	IC RTC CLK/CALENDAR I2C 8-TSSOP	0	$1.54	RFQ
ISL1208IRT8Z-TK	Renesas Electronics America Inc.	IC RTC CLK/CALENDAR I2C 8-TDFN	0	$1.55	RFQ
1338-18DCGI8	IDT, Integrated Device Technology Inc	IC RTC CLK/CALENDAR I2C 8-SOIC	0	$1.54	RFQ
MCP795W22T-I/SL	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-SOIC	0	$1.52	RFQ
MCP795W21T-I/SL	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-SOIC	0	$1.52	RFQ
ISL1218IBZ-T	Renesas Electronics America Inc.	IC RTC CLK/CALENDAR I2C 8-SOIC	0	$1.52	RFQ
RX6110SA:B3 PURE SN	Epson	IC RTC CLK/CALENDAR I2C 14-SOP	0	$1.50	RFQ
MCP795W20T-I/ST	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-TSSOP	0	$1.48	RFQ
MCP795W12T-I/ST	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-TSSOP	0	$1.48	RFQ