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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RX-8571NB:B3PURESN Epson | 1 $5.0096 | Datasheet | Clock/Calendar | Alarm, Leap Year, RAM | 16B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.6V ~ 5.5V | - | 0.55µA ~ 0.6µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-LFDFN | 22-SON (5x6) | 2,440 Cart + RFQ |
ISL12022MIBZ-TR5421 Intersil (Renesas Electronics Corporation) | 1 $6.9000 100 $5.5200 500 $4.6000 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 14µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC | 260 Cart + RFQ |
ISL12022MAIBZ-T Intersil (Renesas Electronics Corporation) | 1 $80.2941 100 $64.2353 500 $53.5294 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 14µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC | 223 Cart + RFQ |
ISL12022MIBZR5421 Intersil (Renesas Electronics Corporation) | 1 $18.4000 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 14µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC | 100,000 Cart + RFQ |
DS1338C-18# ADI (Analog Devices, Inc.) | 1 $5.1620 | Datasheet | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.71V ~ 5.5V | 1.3V ~ 3.7V | 100µA @ 1.89V | -40°C ~ 85°C | Surface Mount | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | 3,073 Cart + RFQ |
DS1340C-3# ADI (Analog Devices, Inc.) | 1 $5.1620 | Datasheet | Clock/Calendar | Leap Year, Trickle-Charger | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.7V ~ 5.5V | 1.3V ~ 3.7V | 125µA @ 3.3V | -40°C ~ 85°C | Surface Mount | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | 2,541 Cart + RFQ |
DS1685EN-5+T&R ADI (Analog Devices, Inc.) | 1 $5.1750 | 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 | 24-TSSOP (0.173", 4.40mm Width) | 24-TSSOP | 2,486 Cart + RFQ |
DS1685EN-3+T&R ADI (Analog Devices, Inc.) | 1 $5.1750 | Datasheet | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | -40°C ~ 85°C | Surface Mount | 24-TSSOP (0.173", 4.40mm Width) | 24-TSSOP | 3,808 Cart + RFQ |
RX-4571NB:B Epson | 1 $5.2453 | Datasheet | Clock/Calendar | Alarm, Leap Year | - | - | - | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.95µA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 22-LFDFN | 22-SON (6.3x4.8) | 1,584 Cart + RFQ |
DS12885S+T&R ADI (Analog Devices, Inc.) | 1 $5.4300 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | 15mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | 24-SOIC (0.295", 7.50mm Width) | 24-SOIC | 4,493 Cart + RFQ |
DS3231MZ/V+T ADI (Analog Devices, Inc.) | 1 $5.4300 | Datasheet | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 130µA ~ 200µA @ 3.63V ~ 5.5V | -40°C ~ 85°C | Surface Mount | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 7,716 Cart + RFQ |
DS3232MZ/V+T ADI (Analog Devices, Inc.) | 1 $21.6000 | Datasheet | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 236B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.3V ~ 4.5V | 2.3V ~ 4.5V | 175µA @ 2.3V ~ 4.5V | -40°C ~ 85°C | Surface Mount | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 100,000 Cart + RFQ |
DS1685SN-5+T&R ADI (Analog Devices, Inc.) | 1 $5.5050 | 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 | 24-SOIC (0.295", 7.50mm Width) | 24-SOIC | 6,362 Cart + RFQ |
RX-4801SA:UB PURE SN Epson | 1 $5.5095 | Datasheet | Clock/Calendar | Alarm | - | - | - | 4-Wire Serial | 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 | 3,504 Cart + RFQ |
ISL12020MIRZ-T Intersil (Renesas Electronics Corporation) | 1 $5.5277 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 14µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | 20-PowerLFDFN | 20-DFN (5.5x4.0) | 6,434 Cart + RFQ |
A3024SO20A+ EM Microelectronic | 1 $5.6115 | Datasheet | Clock/Calendar | Alarm, Leap Year, RAM | 8B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 2V ~ 5.5V | - | 10µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C (TA) | Surface Mount | 20-SOIC (0.295", 7.50mm Width) | 20-SO | 2,658 Cart + RFQ |
RX-4803SA:UAB PURE SN Epson | 1 $5.6932 | Datasheet | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | SPI | 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 | 1,989 Cart + RFQ |
RX-8803SA:UA PURE SN Epson | 1 $5.6932 | Datasheet | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD | 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 | 9,974 Cart + RFQ |
DS12885Q+T&R ADI (Analog Devices, Inc.) | 1 $5.7970 | Datasheet | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | 15mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | 6,901 Cart + RFQ |
RX-8035SA:AC3 PURE SN Epson | 1 $5.8385 | 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 | 14-SOIC (0.197", 5.00mm Width) | 14-SOP | 3,583 Cart + RFQ |