| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | DS1501YE+ | Maxim | 256B Parallel RTC, 5V, 0°C to 70°C, Surface Mount, Lead Free |
No Image | PCF85263ATT1/AJ | NXP | Real Time Clock Serial Clock/Calendar/Alarm/Timer/Interrupt 10-Pin TSSOP T/R |
No Image | NJU6355ED | Njrc | 8-Pin DIP Real Time Clock Timer IC, Commercial Extended, 5V 4.5V 5.5V |
 | DS1284Q | Maxim | Real Time Clock IC, 50B, 0°C to 70°C, 4.5V to 5.5V, PLCC-28 |
No Image | DS1308U-18+T | Maxim | 56B I2C Serial Clock IC, 1.8V, UMAX Package, -40°C to 85°C |
 | DS17485E-3+ | Maxim | 4KB Parallel RTC IC, 3V, 0-70°C, TSOP, Lead Free |
 | AB0813-T3 | Abracon | 64-Bit SPI Clock IC, QFN, 1.7V to 3.6V, -40°C to 85°C |
 | DS1501W+ | Maxim | Real Time Clock IC, 256B Memory, 3.3V, 3.6V, 0°C to 70°C, PDIP |
 | DS1558W+TRL | Maxim | IC RTC CLK/CALENDAR PAR 48-LQFP |
No Image | NJU6355EM | Njrc | Real Time Clock, 1 Timer(s), CMOS, PDSO8, DMP-8 |
 | DS1689S | Maxim | Real Time Clock IC, 114B, 0-70°C, 2.7-5.5V, SOIC-28 |
 | DS1746P-70IND+ | Maxim | IC RTC CLK/CALENDAR PAR 34-PCM |
 | ISL12058IBZ-T | Renesas | Low Cost, Low Power I2C-Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function |
 | DS1688 | Maxim | Real Time Clock, Volatile, 1 Timer(s), CMOS, PDIP28, 0.600 INCH, DIP-28 |
No Image | NJU6356EM | Njrc | Real Time Clock, 0 Timer(s), CMOS, PDSO8, DMP-8 |
 | DS1501WE+T&R | Maxim | IC RTC CLK/CALENDAR PAR 28-TSOP |
 | DS17285-3+ | Maxim | IC RTC CLK/CALENDAR PAR 24-DIP |
 | DS1743P-100IND+ | Maxim | IC RTC CLK/CALENDAR PAR 34-PCM |
No Image | DS1747WP-C03+ | Maxim | IC RAM NONVOL TIME KEEP 34PWRCAP |
 | DP8573AVX | Texas Instruments | Real Time Clock (RTC) 28-PLCC -40 to 85 |