| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | DS14285SN | Maxim | Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24 |
 | CDP68HC68T1M296 | Intersil | IC RTC CLK/CALENDAR SPI 16-SOIC |
No Image | RX-4581NB:B0:ROHS | Seiko | Real Time Clock, Volatile, CMOS, PDSO22, ROHS COMPLIANT, SON-22 |
 | DS1673S-3+ | Maxim | IC RTC SYSTEM CTRLR SER 20-SOIC |
 | ISL12022MIBZ-TR5421 | Renesas | Low Power RTC Module with Battery Backed SRAM, Integrated Temp Comp and Auto Daylight Saving |
No Image | NJU6356ED | Njrc | Real Time Clock, 0 Timer(s), CMOS, PDIP8, DIP-8 |
 | DS1643-85+ | Maxim | IC RTC CLK/CALENDAR PAR 28-EDIP |
 | DS17485SN-5+ | Maxim | Real Time Clock IC, 4KB Memory, 5V Operating, SOIC-28 Package |
 | DS1501WS | Maxim | 256B Real-Time Clock IC, 3.3V, SOIC, Surface Mount, 0-70°C |
 | DS1743-85+ | Maxim | 8KB Real-Time Clock IC, 5V, 4.5V to 5.5V, Through Hole, 0°C to 70°C |
 | ISL12058IUZ | Renesas | Low Cost, Low Power I2C-Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function |
 | DS1747P-70 | Maxim | Real-Time Clock IC 512KB 0°C to 70°C 4.5V to 5.5V Surface Mount |
 | DS1501WSN+T&R | Maxim | IC RTC CLK/CALENDAR PAR 28-SOIC |
 | DS1307ZN/T&R | Maxim | Real Time Clock, 56B, 5V, SOIC, -40°C to 85°C |
 | DS1307Z/T&R | Maxim | Real Time Clock IC 56B 0-70°C 5V I2C/Series SOIC |
 | DS17285S-5+T&R | Maxim | Real Time Clock IC, 2KB Memory, 5V, SOIC, Surface Mount, -0°C to 70°C |
No Image | STWD100YNXWY3F | Stmicroelectronics | Watchdog |
 | PCF8523TK/1 | NXP | 1 TIMER(S), REAL TIME CLOCK, PDSO8, 4 X 4 MM, 0.85 MM HEIGHT, PLASTIC, HVSON-8 |
 | DS17285-3 | Maxim | Real Time Clock, Volatile, 1 Timer(s), CMOS, PDIP24, DIP-24 |
 | DS17485E-5+ | Maxim | IC RTC CLK/CALENDAR PAR 28-TSOP |