| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | M41T60Q6F | Stmicroelectronics | RTC I2C Serial 8B Clock/Calendar QFN 1.3-4.4V Industrial |
 | DS1338U-33+ | Maxim | Real Time Clock I2C/SPI, 56B Memory, 3.3V, 5.5V, -40°C to 85°C, UMAX |
 | PCA8565TS/1,118 | NXP | Real Time Clock Serial Clock/Calendar/Alarm/Timer/Interrupt Automotive 8-Pin TSSOP T/R |
 | DS3231M+ | Maxim | RTC IC, I2C, Serial, SOIC, 3.3V, 5.5V, 85C |
 | PCF85063AT/AY | NXP | RTC IC, I2C, SOIC 8-Pin, Clock/Calendar, -40°C to 85°C |
 | DS2417P+T&R | Maxim | 1-Wire RTC IC, 2.5-5.5V, -40-85°C, Binary Time, 6TSOC |
 | DS1672U-33+ | Maxim | 32-Bit Binary Counter/Clock IC, 400kHz, 3.3V, UMAX Package, Surface Mount |
No Image | DS1644-120+ | Maxim | RTC IC, 32KB, Parallel, 5V, 120ns Access, DIP |
 | DS1342U+T&R | Maxim | RTC IC, I2C, 1.8-5.5V, -40-85°C, UMAX, SM |
 | M41T93RQA6F | Stmicroelectronics | Real Time Clock Serial 32byte Clock/Calendar/Alarm/Battery Backup/Interrupt 16-Pin QFN T/R |
 | DS1642-100+ | Maxim | MAXIM INTEGRATED PRODUCTS DS1642-100+ IC, NVRAM CMOS 16K, 1642, DIP24 |
 | S-35390A-T8T1G | Seiko | RTC IC, I2C/Serial, 1.3-5.5V, -40-85C, TSSOP, SMT |
 | DS1371U+T&R | Maxim | RTC IC, I2C, Binary, 1.7-5.5V, UMAX, SMT |
 | ISL12022MIBZ-T | Renesas | RTC IC, 2.7-5.5V, 20-Pin, Industrial Temp, Battery SRAM |
 | DS1340C-33# | Maxim | Real Time Clock Serial Clock/Calendar/Trickle Charger 16-Pin SOIC W Tube |
 | CY14B256K-SP45XI | Cypress | 256Kb NVSRAM RTC, 45ns Access, 8b Parallel, SSOP-48 |
 | M41T93SQA6F | Stmicroelectronics | Industrial 5.5V 7B Real-Time Clock IC, QFN Package, -40°C to 85°C |
 | BQ4802YDW | Texas Instruments | IC, REAL TIME CLOCK |
 | PCF8563TS/5,118 | NXP | Industrial Real-Time Clock IC, Binary Date Format, 400kHz, 5.5V, TSSOP-8 |
 | MCP79400T-I/SN | Microchip | Industrial Real Time Clock IC, 64B, I2C/SPI, SOIC, -40°C to 85°C |