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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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DS1744-70+IC RTC CLK/CALENDAR PAR 28EDIP |
423 |
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Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 32KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
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DS1244W-120+IC RTC PHANTOM CHIP PAR 28EDIP |
57 |
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Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 32KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | - | 7mA @ 3.3V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
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DS1746WP-120+IC RTC CLK/CALENDAR PAR 34PCM |
47 |
|
Datasheet |
- | 34-PowerCap™ Module | Tray | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 2mA @ 3.3V | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
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DS1244Y-70+IC RTC PHANTOM CHIP PAR 28EDIP |
140 |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 32KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 10mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
|
DS1746W-120+IC RTC CLK/CALENDAR PAR 32EDIP |
256 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | - | 2mA @ 3.3V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1248Y-70+IC RTC PHANTOM CHIP PAR 32EDIP |
287 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Phantom Time Chip | NVSRAM | 128KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 10mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1746-70IND+IC RTC CLK/CALENDAR PAR 32EDIP |
30 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 32-EDIP |
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DS1251Y-70+IC RTC PHANTOM CHIP PAR 32EDIP |
168 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Phantom Time Chip | Leap Year, NVSRAM | 512KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 10mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1746-70+IC RTC CLK/CALENDAR PAR 32EDIP |
415 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1556W-120IND+IC RTC CLK/CALENDAR PAR 32EDIP |
114 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | - | 4mA @ 3.3V | -40°C ~ 85°C | Through Hole | - | - | 32-EDIP |
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DS1556-70+IC RTC CLK/CALENDAR PAR 32EDIP |
32 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 128KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 6mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
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DS1747-70+IC RTC CLK/CALENDAR PAR 32EDIP |
612 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 4mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 32-EDIP |
|
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DS1747W-120IND+IC RTC CLK/CALENDAR PAR 32EDIP |
89 |
|
Datasheet |
- | 32-DIP Module (0.600", 15.24mm) | Tube | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 512KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | - | 2mA @ 3.3V | -40°C ~ 85°C | Through Hole | - | - | 32-EDIP |
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MCP7940MT-I/SNIC RTC CLK/CALENDAR I2C 8SOIC |
6,121 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 1µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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MCP7940M-I/SNIC RTC CLK/CALENDAR I2C 8SOIC |
1,315 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 1µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
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MCP7940MT-I/MSIC RTC CLK/CALENDAR I2C 8MSOP |
8,760 |
|
Datasheet |
- | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 1µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP |
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PCF85063AT/AAZIC RTC CLOCK/CALENDAR I2C 8SO |
1,826 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 0.9V ~ 5.5V | - | 0.6µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 8-SO |
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MCP7940NT-I/STIC RTC CLK/CALENDAR I2C 8TSSOP |
4,748 |
|
Datasheet |
- | 8-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | 1.5V ~ 5.5V | 1.2µA @ 3.3V | -40°C ~ 85°C | Surface Mount | Automotive | AEC-Q100 | 8-TSSOP |
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MCP7940N-I/STIC RTC CLK/CALENDAR I2C 8TSSOP |
2,003 |
|
Datasheet |
- | 8-TSSOP (0.173", 4.40mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 1.2µA @ 3.3V | -40°C ~ 85°C | Surface Mount | Automotive | AEC-Q100 | 8-TSSOP |
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MCP7940N-E/SNIC RTC CLK/CALENDAR I2C 8SOIC |
7,499 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 1.2µA @ 3.3V | -40°C ~ 125°C | Surface Mount | Automotive | AEC-Q100 | 8-SOIC |
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