Real Time Clocks
Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.
Product List
Total Components: 2,323
| Product | Pricing | Datasheet | Type | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply | Voltage - Supply, Battery | Current - Timekeeping (Max) | Operating Temperature | Mounting Type | Package / Case | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DS1501WZ+T&R ADI (Analog Devices, Inc.) | 1 $7.0800 | Datasheet | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | 256B | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 3V ~ 3.6V | 2.5V ~ 3.7V | 4mA @ 3V ~ 3.6V | 0°C ~ 70°C | Surface Mount | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC | 4,721 Cart + RFQ |
DS1558W+TRL ADI (Analog Devices, Inc.) | 1 $7.4850 | Datasheet | Clock/Calendar | Alarm, Leap Year, Watchdog Timer, Y2K | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 2.5V ~ 3.7V | 2mA @ 3.3V | -40°C ~ 85°C | Surface Mount | 48-LQFP | 48-LQFP (7x7) | 3,338 Cart + RFQ |
DS1558Y+TRL ADI (Analog Devices, Inc.) | 1 $7.4850 | Datasheet | Clock/Calendar | Alarm, Leap Year, Watchdog Timer, Y2K | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 6mA @ 5V | -40°C ~ 85°C | Surface Mount | 48-LQFP | 48-LQFP (7x7) | 1,529 Cart + RFQ |
DS1501YZ+T&R ADI (Analog Devices, Inc.) | 1 $7.5450 | Datasheet | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | 256B | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 5mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC | 5,628 Cart + RFQ |
RX-8025NB:AA Epson | 1 $7.6604 | Datasheet | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-SMD, 20 Leads, Flat Leads | 22-SON | 4,557 Cart + RFQ |
RX-4045SAAAB PURE SN Epson | 1 $7.6604 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 14-SOIC (0.197", 5.00mm Width) | 14-SOP | 4,901 Cart + RFQ |
RX-8035LC:AC3 PURE SN Epson | 1 $7.6765 | Datasheet | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | 9,835 Cart + RFQ |
RX-4035LC:BB PURE SN Epson | 1 $7.7359 | Datasheet | Time Event Recorder | Alarm | - | - | - | SPI | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | 6,472 Cart + RFQ |
RX-8035LC:B PURE SN Epson | 1 $7.7359 | Datasheet | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | 1,854 Cart + RFQ |
RX8900CE:UAB Epson | 1 $7.7736 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C | 2.5V ~ 5.5V | 1.6V ~ 5.5V | 1.4µA ~ 1.5µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 10-SMD, No Lead | 10-SMD | 6,856 Cart + RFQ |
RX-8801SA: UB PURE SN Epson | 1 $7.7792 | Datasheet | Clock/Calendar | Alarm | - | - | - | I²C | 1.6V ~ 5.5V | - | 2.1µA ~ 3.4µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 14-SOIC (0.197", 5.00mm Width) | 14-SOP | 9,720 Cart + RFQ |
RX-4045NB:AA3 PURE SN Epson | 1 $7.7846 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | 4-Wire Serial | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-LFDFN | 22-SON (6.3x4.8) | 9,031 Cart + RFQ |
RTC-8564JE:BB ROHS Epson | 1 $7.9623 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | I²C | 1.8V ~ 5.5V | - | 0.7µA ~ 0.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 20-LSSOJ (0.213", 5.40mm Width) | 20-VSOJ | 5,995 Cart + RFQ |
RX8900SA:UAB PURE SN Epson | 1 $7.9623 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C | 2.5V ~ 5.5V | 1.6V ~ 5.5V | 1.4µA ~ 1.5µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 14-SOIC (0.197", 5.00mm Width) | 14-SOP | 1,884 Cart + RFQ |
RX-8035LC:AA3 PURE SN Epson | 1 $7.9648 | Datasheet | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | 8,435 Cart + RFQ |
RX-8035LC:AC PURE SN Epson | 1 $8.0378 | Datasheet | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | 8,525 Cart + RFQ |
RX-4045NB:AAB Epson | 1 $8.1510 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | 4-Wire Serial | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-LFDFN | 22-SON (6.3x4.8) | 7,321 Cart + RFQ |
RX-4045NB:AAB PURE SN Epson | 1 $8.1510 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD-dd | 4-Wire Serial | 1.7V ~ 5.5V | - | 1.2µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-LFDFN | 22-SON (6.3x4.8) | 1,029 Cart + RFQ |
V3025SO28B+ EM Microelectronic | 1 $8.2406 | Datasheet | Clock/Calendar | Alarm, Leap Year, RAM | 8B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 2V ~ 5.5V | 2V ~ 4V | 15µA @ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC | 9,184 Cart + RFQ |
DS1685QN-5+ ADI (Analog Devices, Inc.) | 1 $8.2410 | Datasheet | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 5V | -40°C ~ 85°C | Surface Mount | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | 5,831 Cart + RFQ |