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
1339C-31SRI8 IDT, Integrated Device Technology Inc IC RTC CLK/CALENDAR I2C 16-SOIC 0 $2.53
DS1388Z-3+T&R Maxim Integrated IC RTC CLK/CALENDAR I2C 8-SOIC 0 $2.44
ISL12024IRTCZ Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-TDFN 0 $2.44
RX-8581JE:B0 I2C-BUS Epson IC REAL TIME CLOCK/CALENDAR 0 $2.42
RX-8581JE:B0 Epson IC RTC CLK/CALENDAR I2C 20-VSOJ 0 $2.42
RTC-8564JE:B0 ROHS Epson IC RTC CLK/CALENDAR I2C 20-VSOJ 0 $2.42
RTC-8564JE0:ROHS Epson IC RTC CLK/CALENDAR I2C 20-VSOJ 0 $2.42
RA-4574SA:B3 PURE SN Epson IC RTC CLK/CALENDAR SPI 14-SOP 0 $0.00
RX-8571NB:B3PURESN Epson IC RTC CLK/CALENDAR I2C 22-SON 0 $0.00
RX-4571NB:B3 PURE SN Epson IC RTC CLK/CALENDAR SER 22-SON 0 $0.00