| 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
                 
                 
                
                 | 
				
                    RX-8581SA:BIC RTC CLK/CALENDAR I2C 14SOP EPSON  |  
                4,866 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RX-8581SA | 14-SOIC (0.197", 5.00mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP | 
                 
                 
                
                 | 
				
                    RTC-62421BIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                2,083 | - | 
                
                     | 
                  
                  
                    
                       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-72421A:ROHSIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                3,090 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72421 | 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-72421B: ROHSIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                1,557 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72421 | 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-72423A: ROHSIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                1,515 | 2.91 | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72423 | 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-72423A:3:ROHSIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                1,907 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72423 | 24-SOIC (0.311", 7.90mm Width) | Tape & Reel (TR) | 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-72423B:ROHSIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                3,990 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72423 | 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-72423B3: ROHSIC RTC CLK/CALENDAR PAR 24SOP EPSON  |  
                1,230 | - | 
                
                     | 
                  
                  
                    
                       Datasheet  | 	
                
                RTC-72423 | 24-SOIC (0.311", 7.90mm Width) | Tape & Reel (TR) | 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-62421A:ROHSIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                1,180 | - | 
                
                     | 
                  
                  
                    
                       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-62421B:ROHSIC RTC CLK/CALENDAR PAR 18DIP EPSON  |  
                1,208 | - | 
                
                     | 
                  
                  
                    
                       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 |