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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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DS1678S+T&RIC RTC TIME EVENT REC I2C 8SOIC |
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Datasheet |
- | 8-SOIC (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Not Verified | Time Event Recorder | Alarm, Leap Year, NVSRAM, Y2K | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.6V ~ 3.5V | - | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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AB-RTCMC-32.768KHZ-EOA9-S3-HATIC RTC CLK/CALENDAR SPI MODULE |
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Datasheet |
- | 10-SMD Module | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, TCXO/Crystal, Trickle-Charger | - | HH:MM:SS:hh | YY-MM-DD-dd | SPI | 1.4V ~ 5.5V, 2.1V ~ 5.5V | 1.4V ~ 5.5V | 4.6µA ~ 5.5µA @ 1.4V ~ 5V | -40°C ~ 125°C | Surface Mount | - | - | Module |
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AB-RTCMC-32.768KHZ-EOZ9-S3-HATIC RTC CLK/CALENDAR I2C MODULE |
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Datasheet |
- | 10-SMD Module | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, TCXO/Crystal, Trickle-Charger | - | HH:MM:SS:hh | YY-MM-DD-dd | I2C | 1.4V ~ 5.5V, 2.1V ~ 5.5V | 1.4V ~ 5.5V | 4.6µA ~ 5.5µA @ 1.4V ~ 5V | -40°C ~ 125°C | Surface Mount | - | - | Module |
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M41ST87YMX6TRIC RTC CLOCK/CALENDAR I2C 28SO |
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Datasheet |
- | 28-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 5.5V | 1mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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DS17285SN-5IC RTC CLK/CALENDAR PAR 24SOIC |
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Datasheet |
- | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
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DS17285SN-3IC RTC CLK/CALENDAR PAR 24SOIC |
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Datasheet |
- | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOIC |
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DS17285E-3IC RTC CLK/CALENDAR PAR 28TSOP |
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Datasheet |
- | 28-TSSOP (0.465", 11.80mm Width) | Bag | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2KB | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 2.7V ~ 3.7V | 0°C ~ 70°C | Surface Mount | - | - | 28-TSOP |
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M41ST87YMX6IC RTC CLOCK/CALENDAR I2C 28SO |
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Datasheet |
- | 28-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 5.5V | 1mA @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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RX-4571NB:BIC RTC CLK/CALENDAR SER 22SON |
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Datasheet |
RX-4571NB | 22-LFDFN | Strip | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | - | - | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.95µA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-4571NB:BX PURE SNIC RTC CLK/CALENDAR SER 22SON |
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Datasheet |
RX-4571NB | 22-SMD, 20 Leads, Flat Leads | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | - | - | 3-Wire Serial | 1.6V ~ 5.5V | - | 0.95µA ~ 1µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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RX-4801SA:UB3 PURE SNIC RTC CLK/CALENDAR SPI 14SOP |
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Datasheet |
RX-4801SA | 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 | SPI | 1.6V ~ 5.5V | - | 2.1µA ~ 3.4µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP |
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DS12885T/T&RIC RTC CLK/CALENDAR PAR 32TQFP |
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Datasheet |
- | 32-TQFP | Tape & Reel (TR) | Obsolete | Not Verified | 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 | - | - | 32-TQFP (7x7) |
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DS1558WIC RTC CLK/CALENDAR PAR 48LQFP |
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Datasheet |
- | 48-LQFP | Bag | Obsolete | Not Verified | 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 (7x7) |
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DS1558YIC RTC CLK/CALENDAR PAR 48LQFP |
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Datasheet |
- | 48-LQFP | Bag | Obsolete | Not Verified | 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 (7x7) |
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M41ST87WMX6IC RTC CLOCK/CALENDAR I2C 28SO |
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Datasheet |
- | 28-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | 128B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 3.6V | 2.5V ~ 3.6V | 0.5mA @ 2.7V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 28-SO |
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DS1689SN/T&RIC RTC CLK/CALENDAR PAR 28SOIC |
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Datasheet |
- | 28-SOIC (0.337", 8.56mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | NVSRAM | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.3V, 4.5V ~ 5.5V | 2.5V ~ 3.7V | 2mA @ 3V, 3mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOIC |
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DS1689SN+T&RIC RTC CLK/CALENDAR PAR 28SOIC |
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Datasheet |
- | 28-SOIC (0.337", 8.56mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | NVSRAM | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.3V, 4.5V ~ 5.5V | 2.5V ~ 3.7V | 2mA @ 3V, 3mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOIC |
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BQ4802YDWRG4IC RTC CLK/CALENDAR PAR 28SOIC |
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Datasheet |
- | 28-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 4V | 1.5mA (Typ) @ 4.5 V ~ 5.5 V | 0°C ~ 70°C | Surface Mount | - | - | 28-SOIC |
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RTC-4574JE:B3 ROHSIC RTC CLK/CALENDAR SER 20VSOJ |
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Datasheet |
RTC-4574JE | 20-LSSOJ (0.213", 5.40mm 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 | - | 1µA ~ 2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-VSOJ |
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RTC-4574NB:B3 ROHSIC RTC CLK/CALENDAR SER 22SON |
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Datasheet |
RTC-4574NB | 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 | - | 1µA ~ 2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON (6.3x4.8) |
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