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.
    
| Part Number | Manufacturer | Description | Quantity | Price | Option | 
|---|---|---|---|---|---|
          
             
            DS1744W-120
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 28-EDIP | 0 | $0.00 | |
          
             
            DS1746W-120IND
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 32-EDIP | 0 | $0.00 | |
          
             
            DS1248Y-100IND
          
         | 
        Maxim Integrated | IC RTC PHANTOM PAR 32-DIP | 0 | $0.00 | |
          
             
            DS1501YSN
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 28-SOIC | 0 | $0.00 | |
          
             
            DS1254YB-100
          
         | 
        Maxim Integrated | IC RTC PHANTOM PAR 168-BGA | 0 | $0.00 | |
          
             
            DS1254WB-150
          
         | 
        Maxim Integrated | IC RTC PHANTOM PAR 168-BGA | 0 | $0.00 | |
          
             
            DS1500Y
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 32-DIP | 0 | $0.00 | |
          
             
            DS1501WS
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 28-SOIC | 0 | $0.00 | |
          
             
            DS1689
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR PAR 28-DIP | 0 | $0.00 | |
          
             
            DS1306
          
         | 
        Maxim Integrated | IC RTC CLK/CALENDAR SPI 16-DIP | 0 | $0.00 | 
            DS1744W-120
          
            DS1746W-120IND
          
            DS1248Y-100IND
          
            DS1501YSN
          
            DS1689
          
            DS1306