| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | S-35399A03A-J8T2U | Ablic | 2-WIRE REAL-TIME CLOC |
 | DS1501YSN+ | Maxim | IC RTC CLK/CALENDAR PAR 28-SOIC |
 | DS1685 | Maxim | 3V/5V REAL-TIME CLOCKS |
 | DS1673S-5+T&R | Maxim | IC RTC SYSTEM CTRLR SER 20-SOIC |
No Image | CDP68HC68T1M2Z96 | Intersil | Real Time Clock Serial 32Byte 16-Pin SOIC W T/R |
No Image | MC14536BCP | Onsemi | 4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DIVIDE BYN COUNTER, PDIP16, PLASTIC, DIP-16 |
 | FM3316-G | Cypress | Timer or RTC, Non-Volatile, PDSO14 |
 | DS1390U-33 | Maxim | Real Time Clock, Volatile, 1 Timer(s), CMOS, PDSO10, MO-187CBA, MICRO, SOP-10 |
No Image | PT7C43190LE | Diodes | Real Time Clock Real-time Clock IC (I2C Bus) |
No Image | DS1346T+ | Maxim | Real Time Clock Serial 31Byte 8-Pin TDFN EP |
 | DS1500YE | Maxim | 256B Real Time Clock IC, Parallel Interface, 0°C to 70°C, Surface Mount TSOP-32 |
No Image | BQ4285P-SB2 | Texas Instruments | RTC IC With 114x8 NVSRAM and NVSRAM Control 24-PDIP 0 to 70 |
No Image | BQ3285LFSS-A1G4 | Texas Instruments | Y2K Enhanced ACPI Compliant RTC IC w 240x8 NVSRAM, Alarm Wake-up 3.3V op 32kHz Dedicated Output 24-SSOP |
 | DS1685-3 | Maxim | IC RTC CLK/CALENDAR PAR 24-DIP |
 | DS1557P-70 | Maxim | Real Time Clock 512KB Parallel Interface 0-70°C Surface Mount |
 | DS1244WP-120 | Maxim | 32KB Parallel RTC with 120ns Access Time, 0-70°C |
 | DS1340U-33/T&R | Maxim | IC RTC CLK/CALENDAR I2C 8-USOP |
 | DS1302S-16/T&R | Maxim | IC RTC CLK/CALENDAR SER 16-SOIC |
 | DS1306EN/T&R | Maxim | 96B SPI Real-Time Clock IC, TSSOP Package, -40°C to 85°C |
 | DS17487N-3 | Maxim | IC RTC CLK/CALENDAR PAR 24-EDIP |