| 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-8564NBB0 ROHSIC RTC CLK/CALENDAR I2C 22SON  |  
                1,947 | 0.60 | 
                
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                       Datasheet  | 	
	
                
                RTC-8564NB | 22-SMD, 20 Leads, Flat Leads | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Y2K | - | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.7µA ~ 0.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 22-SON | 
                 
                   
                
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                    RX8804CE XA0IC RTC CLK/CALENDAR I2C 10SMD  |  
                2,081 | - | 
                
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                       Datasheet  | 	
	
                
                RX8804CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Watchdog Timer | - | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | 1.5V ~ 5.5V | 1.5µA ~ 1.6µA @ 3V ~ 5V | -40°C ~ 105°C (TA) | Surface Mount | - | - | 10-SMD | 
                 
                   
                
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                    M41T93SMY6EIC RTC CLK/CALENDAR SPI 18SOX  |  
                3,566 | - | 
                
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                       Datasheet  | 	
	
                
                - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 7B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | SPI | 3V ~ 5.5V | 1.8V ~ 5.5V | 10µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
                 
                   
                
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                    M41T93ZMY6EIC RTC CLK/CALENDAR SPI 18SOX  |  
                2,588 | - | 
                
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                       Datasheet  | 	
	
                
                - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 7B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | SPI | 2.38V ~ 5.5V | 1.8V ~ 5.5V | 10µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
                 
                   
                
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                    RX-4803LCUB0 PURE SNIC RTC CLK/CALENDAR SPI 12VSOJ  |  
                1,240 | - | 
                
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                       Datasheet  | 	
	
                
                - | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
                 
                   
                
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                    ISL12022IBZ-TIC RTC CLK/CALENDAR I2C 8SOIC  |  
                1,437 | 0.71 | 
                
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                     -  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, SRAM | 128B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 14µA ~ 15µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
                 
                   
                
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                    DS1685-5IC RTC CLK/CALENDAR PAR 24DIP  |  
                2,468 | 0.20 | 
                
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                       Datasheet  | 	
	
                
                - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 24-PDIP | 
                 
                   
                
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                    DS1685-3IC RTC CLK/CALENDAR PAR 24DIP  |  
                3,027 | 0.20 | 
                
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                       Datasheet  | 	
	
                
                - | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | 0°C ~ 70°C | Through Hole | - | - | 24-PDIP | 
                 
                   
                
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                    BQ3285S-SB2TRG4IC RTC CLK/CALENDAR PAR 24SOIC  |  
                2,732 | - | 
                
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                       Datasheet  | 	
	
                
                - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | - | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC | 
                 
                   
                
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                    ISL12024IBZIC RTC CLK/CALENDAR I2C 8SOIC  |  
                3,579 | 1.09 | 
                
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                       Datasheet  | 	
	
                
                - | 8-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Unique ID | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
                 
                   
                
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                    DS1305ENIC RTC CLK/CALENDAR SPI 20TSSOP  |  
                4,701 | 0.20 | 
                
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                       Datasheet  | 	
	
                
                - | 20-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Trickle-Charger | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2V ~ 5.5V | 2V ~ 5.5V | 25.3µA ~ 81µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP | 
                 
                   
                
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                    DS1305NIC RTC CLK/CALENDAR SPI 16DIP  |  
                3,768 | - | 
                
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                       Datasheet  | 	
	
                
                - | 16-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Trickle-Charger | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2V ~ 5.5V | 2V ~ 5.5V | 25.3µA ~ 81µA @ 2V ~ 5V | -40°C ~ 85°C | Through Hole | - | - | 16-PDIP | 
                 
                   
                
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                    M48T86MH1EIC RTC CLK/CALENDAR PAR 28SOH  |  
                3,739 | - | 
                
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                       Datasheet  | 	
	
                
                - | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 15mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | - | - | 28-SOH | 
                 
                   
                
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                    RX-8803LCUC0 PURE SNIC RTC CLK/CALENDAR I2C 12VSOJ  |  
                2,390 | - | 
                
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                       Datasheet  | 	
	
                
                - | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
                 
                   
                
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                    DS1339U-2+T&RIC RTC CLOCK/CALENDAR I2C 8UMAX  |  
                3,733 | 0.50 | 
                
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                       Datasheet  | 	
	
                
                - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | 1.3V ~ 3.7V | 100µA @ 2.2V | -40°C ~ 85°C | Surface Mount | - | - | 8-uMAX/uSOP | 
                 
                   
                
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                    RX4111CE BBIC RTC CLK/CALENDAR SPI 10SMD  |  
                2,495 | 0.54 | 
                
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                       Datasheet  | 	
	
                
                RX4111CE | 10-SMD, No Lead | Bulk | Active | Not Verified | Clock/Calendar | Alarm, RAM | - | HH:MM:SS | YY-MM-DD | SPI, 4-Wire Serial | 1.6V ~ 5.5V | - | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD | 
                 
                   
                
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                    M41T56C64MY6EIC RTC CLK/CALENDAR I2C 18SOX  |  
                4,276 | - | 
                
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                       Datasheet  | 	
	
                
                - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | EEPROM, Leap Year, NVSRAM | 56B, 8KB | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 4.5V ~ 5.5V | 2.5V ~ 3.5V | 100µA (Typ) @ 4.5V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
                 
                   
                
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                    RX-8731LC:B3IC RTC CLK/CALENDAR I2C 12VSOJ  |  
                4,898 | - | 
                
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                       Datasheet  | 	
	
                
                RX-8731LC | 12-TFSOJ (0.094", 2.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Unique ID | 80b | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C | 1.7V ~ 5.5V | - | 1.4µA ~ 1.5µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ | 
                 
                   
                
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                    DS1685S-3IC RTC CLK/CALENDAR PAR 24SOIC  |  
                2,659 | 0.20 | 
                
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                       Datasheet  | 	
	
                
                - | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 3.7V | 2.5V ~ 3.7V | 2mA @ 3V | 0°C ~ 70°C | Surface Mount | - | - | 24-SOIC | 
                 
                   
                
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                    RX8111CE ABIC RTC CLK/CALENDAR I2C 10SMD  |  
                1,604 | 0.56 | 
                
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                       Datasheet  | 	
	
                
                RX8111CE | 10-SMD, No Lead | Bulk | Active | Not Verified | Clock/Calendar | Alarm, RAM | - | HH:MM:SS | YY-MM-DD | I2C | 1.6V ~ 5.5V | - | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD |