| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | ISL12026AIBZ | Renesas | Real Time Clock/Calendar with I<sup>2</sup>C Bus™ and EEPROM |
 | DS12885S/T&R | Maxim | IC RTC CLK/CALENDAR PAR 24-SOIC |
 | ISL1208IRT8Z-TK | Renesas | 8-Pin Industrial-Grade Real-Time Clock IC, 2.7V to 5.5V, S-PDSO-N8 |
 | DS1344D-3+T&R | Maxim | 96B SPI Real-Time Clock IC, 3V, 85°C, Surface Mount |
 | ISL12026IVZ-T | Renesas | Real Time Clock/Calendar with I<sup>2</sup>C Bus™ and EEPROM |
 | ISL12026IBZ | Renesas | Real Time Clock Serial 512byte Clock/Calendar/Alarm/Battery Backup/Interrupt Automotive 8-Pin SOIC N Tube |
No Image | MCP79411-I/MS | Microchip | RTC IC, Serial, 8-Pin MSOP, Industrial, 2.5-5.5V |
 | MCP79510T-I/MN | Microchip | Real Time Clock Serial 64Byte 10-Pin TDFN EP T/R |
 | PCF85363ATT/AJ | NXP | Real Time Clock Serial 64byte Clock/Calendar/Alarm/Timer/Battery Backup 8-Pin TSSOP T/R |
 | MCP79521T-I/MS | Microchip | REAL TIME CLOCK |
 | ISL1221IUZ | Renesas | 10-Pin Industrial Temperature Real-Time Clock Timer IC, 2.7-5.5V, TSSOP-10 |
 | BQ4285S-SB2G4 | Texas Instruments | Clock Logic IC, 114B, 5V, 4.5V, 5.5V, 0°C, 70°C, SOIC, Surface Mount |
 | M48T128Y-70PM1 | Stmicroelectronics | 70ns Clock IC, 1Mb SRAM, 5V, 0-70°C, Through Hole, PDIP |
 | M41ST84WMQ6E | Stmicroelectronics | Industrial Clock IC, 3.3V, 44B, SOIC-16, -40°C to 85°C |
 | ISL1208IB8Z | Renesas | 8-Pin Industrial SOP Real Time Clock Timer IC |
 | MCP7940N-I/P | Microchip | 8-Pin Industrial Real-Time Clock Timer IC, 1.8V to 5.5V, DIP-8 |
 | DS1216D | Maxim | Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, 0.600 INCH, SOCKET, DIP-32 |
 | MCP79512T-I/MN | Microchip | 64-Bit Real-Time Clock IC, 1.8V to 3.6V, Surface Mount, -40°C to 85°C |
 | M41T94MH6E | Stmicroelectronics | Industrial-Grade Real-Time Clock IC, SPI/I2C Interface, 44B RAM, SO-28 Package |
 | PT7C4302WEX | Diodes | 31B Serial Real Time Clock, -40°C to 85°C, SOIC Surface Mount |