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
MCP79522T-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP	0	$1.16	RFQ
MCP79522T-I/MN	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-TDFN	0	$1.16	RFQ
MCP79521T-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP	0	$1.16	RFQ
MCP79521T-I/MN	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-TDFN	0	$1.16	RFQ
PT7C43190WE	Diodes Incorporated	IC RTC CALENDAR 3-WIRE SER 8SOIC	0	$1.16	RFQ
PT7C43390LE	Diodes Incorporated	IC RTC CLK/CALENDAR I2C TSSOP	0	$1.15	RFQ
PT7C43390WE	Diodes Incorporated	IC RTC LOW PWR CONSUMPTION I2C	0	$1.13	RFQ
ISL12058IUZ	Renesas Electronics America Inc.	IC RTC CLK/CALENDAR I2C 8-MSOP	0	$1.12	RFQ
ISL12058IBZ-T	Renesas Electronics America Inc.	IC RTC CLK/CALENDAR I2C 8-SOIC	0	$1.12	RFQ
ISL12058IUZ-T	Renesas Electronics America Inc.	IC RTC CLK/CALENDAR I2C 8-MSOP	0	$1.12	RFQ