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.
Sourcing JRC (Nisshinbo Micro Devices) Real Time Clocks: in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 36
| Product | Pricing | Datasheet | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply, Battery | Current - Timekeeping (Max) | Type | Mounting Type | Operating Temperature | Voltage - Supply | Package / Case | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 NJU6355ED JRC (Nisshinbo Micro Devices) | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 4-Wire Serial | - | 4µA ~ 15µA @ 2V ~ 5V | Clock/Calendar | Through Hole | -30°C ~ 80°C | 4.5V ~ 5.5V | 8-DIP (0.300", 7.62mm) | 8-DIP | 9,624 | ||
 NJU6355EM JRC (Nisshinbo Micro Devices) | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 4-Wire Serial | - | 4µA ~ 15µA @ 2V ~ 5V | Clock/Calendar | Surface Mount | -30°C ~ 80°C | 4.5V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-EMP | 4,571 | ||
 R2025D-E2-F JRC (Nisshinbo Micro Devices) | 1 $5.1100 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 120µA ~ 1.8µA @ 3V ~ 5V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.7V ~ 5.5V | 22-SMD, Flat Lead Exposed Pad | 22-SON (6.1x4.7) | 4,928 | |
 R2043T-E2-F JRC (Nisshinbo Micro Devices) | 1 $1.5900 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 4-Wire Serial | - | 1µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.7V ~ 5.5V | 10-VFSOP, 10-MSOP (0.110", 2.80mm Width) | 10-TSSOPG | 6,648 | |
 RV5C348B-E2-F JRC (Nisshinbo Micro Devices) | 1 $1.7500 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 4-Wire Serial | - | 1µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 2V ~ 5.5V | 10-LFSOP, 10-MSOP (0.110", 2.80mm Width) | 10-SSOP-G | 1,430 | |
 R2051S01-E2-F JRC (Nisshinbo Micro Devices) | 1 $1.8400 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 1µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 2.34V ~ 5.5V | 16-LSSOP (0.173", 4.40mm Width) | 16-SSOP | 7,362 | |
R2223T-E2-F JRC (Nisshinbo Micro Devices) | 1 $1.7200 | Alarm, Leap Year, RAM | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.9µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.5V ~ 5.5V | 10-VFSOP, 10-MSOP (0.110", 2.80mm Width) | 10-TSSOPG | 3,496 | |
 R2061L01-E2 JRC (Nisshinbo Micro Devices) | 1 $1.7200 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | - | 1µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 2.34V ~ 5.5V | 16-XFQFN Exposed Pad | QFN023023-16 | 2,430 | |
 R2262L01-E2 JRC (Nisshinbo Micro Devices) | 1 $1.7200 | Alarm, Leap Year, RAM, SRAM | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | - | 0.9µA @ 3V | Clock/Calendar | Surface Mount | -40°C ~ 85°C (TA) | 2.63V ~ 5.5V | 18-XFQFN Exposed Pad | 18-QFN (2x2) | 9,665 | |
R2061L03-E2 JRC (Nisshinbo Micro Devices) | 1 $0.8250 | - | - | - | - | - | - | - | - | Surface Mount | - | - | 16-XFQFN Exposed Pad | QFN023023-16 | 4,732 | |
R2062L01-E2 JRC (Nisshinbo Micro Devices) | 1 $0.8250 | - | - | - | - | - | - | - | - | - | - | - | - | - | 7,976 | |
R2062L02-E2 JRC (Nisshinbo Micro Devices) | 1 $0.8250 | - | - | - | - | - | - | - | - | - | - | - | - | - | 6,687 | |
R2221L-E2 JRC (Nisshinbo Micro Devices) | 1 $0.8400 | - | - | - | - | - | - | - | - | - | - | - | - | - | 8,505 | |
RS5C338A-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8400 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,463 | |
RV5C338A-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8400 | - | - | - | - | - | - | - | - | - | - | - | - | - | 8,804 | |
RV5C386A-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8400 | - | - | - | - | - | - | - | - | - | - | - | - | - | 5,631 | |
 RS5C372B-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8400 | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.9µA ~ 2µA @ 3V ~ 6V | Clock/Calendar | Surface Mount | -40°C ~ 85°C | 1.7V ~ 6V | 8-LSSOP (0.173", 4.40mm Width) | 8-SSOP | 9,741 | |
R2051S02-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8850 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,813 | |
R2051S03-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8850 | - | - | - | - | - | - | - | - | - | - | - | - | - | 6,845 | |
R2061S02-E2-F JRC (Nisshinbo Micro Devices) | 1 $0.8850 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,783 |