| 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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                    MCP79511T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN  |  
                3,588 | 0.28 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    MCP79512T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN  |  
                3,078 | 0.28 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    MCP79512T-I/MSIC RTC CLK/CALENDAR SPI 10MSOP  |  
                3,626 | 0.28 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-MSOP | 
                 
                   
                
                 | 
				
                    MCP79520T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN  |  
                3,897 | 0.28 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    M41T0DS6FIC RTC CLK/CALENDAR I2C 8-TSSOP  |  
                3,606 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | - | - | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 2V ~ 5.5V | - | 1.2µA ~ 31µA @ 3V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | - | 
                 
                   
                
                 | 
				
                    EM3027IDSSO8A+LINEAR IC  |  
                1,338 | - | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tube | Last Time Buy | - | Clock/Calendar | Alarm, EEPROM, Leap Year, RAM, Trickle-Charger | 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 1.4V ~ 5.5V | 1.4V ~ 5.5V | 4.6µA ~ 5.5µA @ 1.4V ~ 5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-SOIC | 
| 
                 
                   | 
				
                    DS1337SIC RTC CLK/CALENDAR I2C 8SOIC  |  
                2,876 | 0.20 | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.6µA @ 1.3V ~ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
                 
                   
                
                 | 
				
                    M41T0DS6EIC RTC CLOCK/CALENDAR I2C  |  
                1,364 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | - | - | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 2V ~ 5.5V | - | 1.2µA ~ 31µA @ 3V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | - | 
                 
                   
                
                 | 
				
                    ISL1208IB8Z-TKR5291IC RTC CLK/CALENDAR I2C 8SOIC  |  
                1,194 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM | 2B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 4µA ~ 6µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
                 
                   
                
                 | 
				
                    DS2417PIC RTC BINARY CNTR 1-WIRE 6TSOC  |  
                4,877 | 0.30 | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 6-SMD, J-Lead | Tube | Obsolete | Not Verified | Binary Counter | Unique ID | - | Binary | Binary | 1-Wire® Serial | 2.5V ~ 5.5V | - | 0.45µA @ 2.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 6-TSOC | 
                 
                   
                
                 | 
				
                    MCP79521T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN  |  
                3,805 | 0.30 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    MCP79522T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN  |  
                3,396 | 0.30 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    MCP79522T-I/MSIC RTC CLK/CALENDAR SPI 10MSOP  |  
                4,563 | 0.30 | 
                
                     | 
                 
                  
                  
                     -  | 	
	
                
                - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 10-MSOP | 
                 
                   
                
                 | 
				
                    DS2415P/T&RIC RTC REAL TIME CLK 1WIRE 6TSOC  |  
                3,629 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 6-SMD, J-Lead | Tape & Reel (TR) | Obsolete | Not Verified | Real Time Clock (RTC) | - | - | Binary | Binary | 1-Wire® Serial | 3V, 3.3V, 5V | - | - | -40°C ~ 85°C | Surface Mount | - | - | 6-TSOC | 
                 
                   
                
                 | 
				
                    PCF8583T/5,512IC RTC CLOCK/CALENDAR I2C 8SO  |  
                3,456 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output | 240B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD | I2C, 2-Wire Serial | 2.5V ~ 6V | - | 10µA ~ 50µA @ 1V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SO | 
| 
                 
                   | 
				
                    DS1672S-3/T&RIC RTC BINARY COUNTER I2C 8SOIC  |  
                1,394 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Binary Counter | Trickle-Charger | - | Binary | Binary | I2C, 2-Wire Serial | 2.7V ~ 3.3V | 1.3V ~ 3.63V | 500µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
                 
                   
                
                 | 
				
                    RV-4162-C7-32.768KHZ-20PPM-TA-QAIC RTC CLK/CALENDAR I2C 8SON  |  
                3,602 | 0.28 | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Programmable Clock Output, Watchdog Timer | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1V ~ 4.4V | - | 0.5µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | Automotive | AEC-Q200 | 8-SON (3.2x1.5) | 
                 
                   
                
                 | 
				
                    MAX31331TETB+TULTRA-LOW POWER 12C REAL TIME CL  |  
                4,830 | - | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 10-WFDFN Exposed Pad | Tape & Reel (TR) | Active | - | Clock/Calendar | Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD | I2C | 1.1V ~ 5.5V | 1.1V ~ 5.5V | 0.65µA ~ 0.7µA @ 1.1V ~ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-TDFN (3x3) | 
                 
                   
                
                 | 
				
                    1337AGDVGI8IC RTC CLK/CALENDAR I2C 8TSSOP  |  
                4,343 | 0.33 | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                - | 8-TSSOP, 8-MSOP (0.118", 3.00mm 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 | 1.8V ~ 5.5V | - | 0.3µA @ 1.3V ~ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-TSSOP | 
                 
                   
                
                 | 
				
                    RV-4162-C7-32.768KHZ-10PPM-TA-QCIC RTC CLK/CALENDAR I2C 8SON  |  
                2,227 | 0.30 | 
                
                     | 
                 
                  
                  
                    
                       Datasheet  | 	
	
                
                C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Programmable Clock Output, Watchdog Timer | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1V ~ 4.4V | - | 0.5µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-SON (3.2x1.5) |