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
M41T56M6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 3971 $0.00
ISL1208IB8Z-TK Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-SOIC 4619 $0.00
MCP79520-I/MS Microchip Technology IC RTC CLK/CALENDAR SPI 10-MSOP 1327 $1.24
M41T00SM6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 9210 $0.00
M41T00M6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 13087 $0.00
M41T81M6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 5422 $0.00
M41T81SM6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 21824 $0.00
M41T82RM6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 4129 $0.00
M41T82ZM6F STMicroelectronics IC RTC CLK/CALENDAR I2C 8-SOIC 3466 $0.00
MCP79412-I/SN Microchip Technology IC RTC CLK/CALENDAR I2C 8-SOIC 2886 $1.01