| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | DS1339C-3# | Maxim | Real Time Clock, I2C/Series, 2-Wire, SOIC, -40°C to 85°C |
 | DS1216H | Maxim | Clock IC 5V 5.5V 0°C 70°C PDIP |
 | DS1644-120 | Maxim | 32KB Real Time Clock IC, Parallel Interface, 0°C to 70°C, 4.5V to 5.5V |
 | DS1556P-70 | Maxim | 128KB Parallel RTC IC, 5V, 0-70°C, Surface Mount |
No Image | PT7C433833UEX | Diodes | 56B I2C/SPI Real Time Clock, 85°C, MSOP, Surface Mount |
 | DS1306EN | Maxim | Real Time Clock IC, 96B, SPI, TSSOP-20, -40°C to 85°C |
 | DS2417P | Maxim | Real Time Clock 1-WIRE Serial Interface TSOC-6 |
 | DS12885TN+ | Maxim | Real Time Clock, 114B, 4.5-5.5V, 5V, TQFP, Surface Mount, -40°C to 85°C |
 | DS17285EN-3+ | Maxim | Real Time Clock IC, 2KB Parallel Interface, 3V, 85°C, Surface Mount |
 | ISL12029IB30AZ-T | Intersil | Real Time Clock I2C/SPI Bridge, 64-B FIFO, 3.3V, SOIC-28 |
No Image | DS1338Z-18+T&R | Maxim | 56B Real-Time Clock with I2C/SPI Interface, SOIC Package, -40°C to 85°C |
 | DS1746P-70IND | Maxim | Real Time Clock IC 128KB Parallel Interface -40°C to 85°C |
 | DS17885S-5 | Maxim | 8KB Real Time Clock IC, 5V, SOIC, Surface Mount, 0°C to 70°C |
 | DS1670S+ | Maxim | IC RTC SYSTEM CTRLR SER 20-SOIC |
 | DS17885SN-5 | Maxim | Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24 |
 | ISL12029IVAZ-T | Intersil | IC RTC CLK/CALENDAR I2C 14-TSSOP |
 | DS1339C-33 | Maxim | Real Time Clock I2C/Ser 2-Wire 3.3V 85°C SOIC-46 |
 | ISL12029IV27AZ-T | Intersil | IC RTC CLK/CALENDAR I2C 14-TSSOP |
 | ISL12058IRUZ-T | Intersil | IC RTC CLK/CALENDAR I2C 8-UTDFN |
 | M48T35AV-10MH1 | Stmicroelectronics | 0 TIMER(S), REAL TIME CLOCK, PDSO28, 0.330 INCH, PLASTIC, SOH-28 |