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Real Time Clocks
| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Package/Case | Packaging | Product Status | Programmable | Type | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply | Voltage - Supply, Battery | Current - Timekeeping (Max) | Operating Temperature | Mounting Type | Grade | Qualification | Supplier Device Package |
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DS2404S-001IC RTC BINARY CTR 1-WIRE 16SOIC |
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Datasheet |
EconoRAM | 16-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Binary Counter | Alarm, Square Wave Output, SRAM | 512B | Binary | Binary | 1-Wire® and 3-Wire | 2.8V ~ 5.5V | 2.8V ~ 5.5V | 500µA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 16-SOIC |
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M41T56C64MY6FIC RTC CLK/CALENDAR I2C 18SOX |
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Datasheet |
- | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | EEPROM, Leap Year, NVSRAM | 56B, 8KB | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 3.5V | 100µA (Typ) @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX |
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BQ4802LYDSHIC RTC CLK/CALENDAR PAR 28SOP |
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Datasheet |
- | 28-SOIC (0.345", 8.77mm Width) with SNAPHAT Sockets | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.6V | 2.4V ~ 4V | 1.5mA (Typ) @ 2.7 V ~ 3.6 V | 0°C ~ 70°C | Surface Mount | - | - | 28-SOP |
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RTC-4701NB:B3 ROHSIC RTC CLK/CALENDAR SER 22SON |
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Datasheet |
- | 22-LFDFN | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.6V ~ 5.5V | - | - | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-4574LC:B3 PURE SNIC RTC CLK/CALENDAR SER 12VSOJ |
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Datasheet |
RX-4581NB | 12-TFSOJ (0.094", 2.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.7µA ~ 0.9µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ |
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DS1685S-3+T&RIC RTC CLK/CALENDAR PAR 24SOIC |
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Datasheet |
- | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC |
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DS1685E-5+T&RIC RTC CLK/CALENDAR PAR 24TSSOP |
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Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | 0°C ~ 70°C | Surface Mount | - | - | 24-TSSOP |
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DS1685E-3+T&RIC RTC CLK/CALENDAR PAR 24TSSOP |
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Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | 0°C ~ 70°C | Surface Mount | - | - | 24-TSSOP |
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RA-4565SA:B3 ROHSIC RTC CLK/CALENDAR SER 14SOP |
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Datasheet |
- | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 4-Wire Serial | 1.6V ~ 5.5V | - | 1.6µA ~ 2µA @ 3V ~ 5V | -40°C ~ 125°C | Surface Mount | Automotive | AEC-Q200 | 14-SOP |
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DS1501WNIC RTC CLK/CALENDAR PAR 28DIP |
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Datasheet |
- | 28-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | 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 | -40°C ~ 85°C | Through Hole | - | - | 28-PDIP |
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DS1501YNIC RTC CLK/CALENDAR PAR 28DIP |
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Datasheet |
- | 28-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | 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 | -40°C ~ 85°C | Through Hole | - | - | 28-PDIP |
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RX-4571LCB PURE SNRX-4571LC:B RTC {SN-AG OR SN} VS |
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Datasheet |
RX-4571LC | 12-TFSOJ (0.094", 2.40mm Width) | Bulk | Active | - | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS | YY-MM-DD | 3-Wire Serial | 1.6V ~ 5.5V | 1V ~ 5.5V | 950nA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ |
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RX-8571LC:B PURE SN5+/-23PPM RTC BULK - CUT TAPE |
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Datasheet |
RX-8571LC | 12-TFSOJ (0.094", 2.40mm Width) | Bulk | Active | - | Clock/Calendar | Alarm, RAM | 16B | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | 1.3V ~ 5.5V | 0.4µA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ |
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MAX6902ETA+TIC RTC CLK/CALENDAR SPI 8TDFN |
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Datasheet |
- | 8-WDFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Y2K | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2V ~ 5.5V | - | 1.05µA ~ 4.2µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TDFN (3x3) |
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RX-4803SA:UAB PURE SNIC RTC CLK/CALENDAR SPI 14SOP |
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Datasheet |
RX-4803SA | 14-SOIC (0.197", 5.00mm Width) | Tube | Active | Not Verified | 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-SOP |
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RX-8803SA:UA PURE SNIC RTC CLK/CALENDAR I2C 14SOP |
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Datasheet |
RX-8803SA | 14-SOIC (0.197", 5.00mm Width) | Tube | Active | Not Verified | 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-SOP |
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M41T00SC64MY6FIC RTC CLK/CALENDAR I2C 18SOX |
0 |
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Datasheet |
- | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | EEPROM, Leap Year | 8KB | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 2.5V ~ 35V | 100µA (Typ) @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX |
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DS2404BIC RTC BINARY CTR 1-WIRE 16SSOP |
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Datasheet |
EconoRAM | 16-SSOP (0.209", 5.30mm Width) | Tube | Obsolete | Not Verified | Binary Counter | Alarm, Square Wave Output, SRAM | 512B | Binary | Binary | 1-Wire® and 3-Wire | 2.8V ~ 5.5V | 2.8V ~ 5.5V | 500µA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 16-SSOP |
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DS1501WE/T&RIC RTC CLK/CALENDAR PAR 28TSOP |
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Datasheet |
- | 28-TSSOP (0.465", 11.80mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 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-TSOP |
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DS1685-5IND+IC RTC CLK/CALENDAR PAR 24DIP |
0 |
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Datasheet |
- | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | 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 | Through Hole | - | - | 24-PDIP |
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