| Photo | Mfr. Part # | Availability | Price | 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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                    RTC-62421AIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                2,969 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 18-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 1.8µA ~ 3µA @ 2V ~ 5V | -40°C ~ 85°C | Through Hole | - | - | 18-DIP | 
                 
                 
                
                 | 
				
                    RTC-72421AIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                1,244 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 18-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 5µA ~ 10µA @ 2V ~ 5V | -10°C ~ 70°C | Through Hole | - | - | 18-DIP | 
                 
                 
                
                 | 
				
                    RTC-72421BIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                4,312 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 18-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 5µA ~ 10µA @ 2V ~ 5V | -10°C ~ 70°C | Through Hole | - | - | 18-DIP | 
                 
                 
                
                 | 
				
                    RTC-72423AIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                4,830 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 24-SOIC (0.311", 7.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 5µA ~ 10µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOP | 
                 
                 
                
                 | 
				
                    RTC-72423BIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                2,212 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 24-SOIC (0.311", 7.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 5µA ~ 10µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOP | 
                 
                 
                
                 | 
				
                    RTC-63423BIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                2,228 | - | 
                
                     | 
                  
                  
                     -  | 	
                
                - | 24-SOIC (0.311", 7.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | - | -40°C ~ 85°C | Surface Mount | - | - | 24-SOP | 
                 
                 
                
                 | 
				
                    RTC-63421BIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                3,421 | - | 
                
                     | 
                  
                  
                     -  | 	
                
                - | 18-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | - | -40°C ~ 85°C | Through Hole | - | - | 18-DIP | 
                 
                 
                
                 | 
				
                    RTC-4553A2IC RTC CLK/CALENDAR SER 14SOP EPSON  |  
                1,422 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year, SRAM | 120b | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 4-Wire Serial | 2.7V ~ 5.5V | - | 3µA @ 5V | -30°C ~ 70°C | Surface Mount | - | - | 14-SOP | 
                 
                 
                
                 | 
				
                    RTC-4543SB:AIC RTC CLK/CALENDAR SER 18SOP EPSON  |  
                1,966 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 18-SOIC (0.213", 5.40mm Width) | Bulk | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2.5V ~ 5.5V | - | 1µA ~ 3µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOP | 
                 
                 
                
                 | 
				
                    RTC-72423A:2IC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                1,292 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                - | 24-SOIC (0.311", 7.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 5µA ~ 10µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 24-SOP |