| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | M41ST85WMH6E | Stmicroelectronics | 3.0/3.3V I2C RTC, NVRAM, Microprocessor Supervisor, SOIC |
 | M41T93SMY6F | Stmicroelectronics | Industrial Real-Time Clock IC, 7-Bit, SPI Interface, 5.5V, SOIC Package |
 | DS1746WP-120+ | Maxim | 120ns Clock IC, 128KB, 3.3V, Surface Mount, Module |
 | DS3231S# | Maxim | Real Time Clock I2C Serial 2-Wire 3.3V 0-70°C SOIC-45 |
 | DS1251YP-70IND+ | Maxim | IC RTC PHANTOM PAR 34-PCM |
 | DS1302ZN+ | Maxim | 3-Wire Serial RTC IC, SOIC-8, 32.768kHz, 5.5V |
 | DS1744W-120+ | Maxim | Real Time Clock Parallel 32Kbyte Clock/Calendar/NV Timekeeping RAM 28-Pin EDIP |
 | M48T58Y-70MH1F | Stmicroelectronics | 5.0 V, 64 Kbit (8 Kb x 8) TIMEKEEPER® SRAM |
 | MCP795W12-I/SL | Microchip | Real Time Clock Serial 64byte Clock/Calendar/Alarm/Interrupt/Watchdog Timer/Battery Backup Automotive 14-Pin SOIC N Tube |
 | DS1554-70IND+ | Maxim | IC RTC CLK/CALENDAR PAR 32-EDIP |
 | ISL1208IU8Z-TK | Renesas | I2C RTC IC, 2.7-5.5V, 8-Pin, Industrial, S-PDSO-G8 |
 | DS12R885S-33+ | Maxim | IC RTC CLK/CALENDAR PAR 24-SOIC |
 | BQ4802LYPWR | Texas Instruments | Y2K-Compliant Parallel RTC with CPU Supervisor and External NVSRAM Control, 3V Vcc 28-TSSOP 0 to 70 |
 | M41T81SMY6F | Stmicroelectronics | Real Time Clock Serial 20byte Clock/Calendar/Alarm/Timer/Interrupt 18-Pin SOX T/R |
 | DS1744WP-120+ | Maxim | 32KB Real Time Clock IC, 3.3V, 0°C to 70°C, Surface Mount |
No Image | DS1744W-120IND+ | Maxim | RTC IC, 32KB RAM, Parallel Interface, 3.3V, -40°C to 85°C |
 | DS1251WP-120+ | Maxim | Real Time Clock Phantom Clock/Parallel 512KByte 34-Pin PowerCap Module |
 | DP8570AV/NOPB | Texas Instruments | Clock IC 44B 4.5V 5.5V 5V 85°C 0.041719oz PLCC |
 | DS1394U-33+ | Maxim | In a Pack of 5, Maxim DS1394U-33+, Real Time Clock (RTC) Serial-SPI, 10-Pin ¦ÌMAX |
 | DS12885S+ | Maxim | 5V Real Time Clock, 114B Memory, SOIC Package, 0°C to 70°C |