 
    
                            
                                 
                                Programmable Interval Timer
5V - 8 MHz - PLCC 28
 
    
                            
                                 
                                RTC Trickle-Charge Timekeeping Chip
2/5.5V - SOIC8
 
    
                            
                                 
                                RTC serie I2C -  64x8
5V - DIL8
 
    
                            
                                 
                                RTC serie I2C -  64x8
5V - SOIC8
 
    
                            
                                 
                                RTC con 56 Byte NV RAM
3/5.5V - I2C -SOIC8
 
    
                            
                                 
                                RTC - Clock-Calendar
2.7/3.6V - SPI - SOIC 28
 
    
                            
                                 
                                RTC/Bateria - Cronómetro-Calendar
5V - 16Kbit - DIL24
 
    
                            
                                 
                                RTC - Cronómetro-Calendar
5V - 256Kbit - DIL28
 
    
                            
                                 
                                Bateria/Cristal for RTC
 
    
                            
                                 
                                RTC serie I2C -  Clock-Calendar
5V - 64Bytes - SOIC8
 
    
                            
                                 
                                RTC  Calendar - 240Bytes RAM
2.5/6V - SO8W
 
    
                            
                                 
                                RTC  compacto con alarma
1.6/6V - TSSOP8
 
    
                            
                                 
                                4 bit - RTC  module
5V - SOIC 24
 
    
                            
                                 
                                Low-power single CMOS timer - SOIC 8