| Type | Description | 
|---|---|
| Series: | - | 
| Package: | Tube | 
| Part Status: | Active | 
| Type: | Clock/Calendar | 
| Features: | Alarm, Leap Year, Unique ID | 
| Memory Size: | - | 
| Time Format: | HH:MM:SS (12/24 hr) | 
| Date Format: | YY-MM-DD-dd | 
| Interface: | I²C, 2-Wire Serial | 
| Voltage - Supply: | 2.7V ~ 5.5V | 
| Voltage - Supply, Battery: | 1.8V ~ 5.5V | 
| Current - Timekeeping (Max): | 10µA ~ 20µA @ 2.7V ~ 5.5V | 
| Operating Temperature: | -40°C ~ 85°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package: | 8-SOIC | 
| Image | Part Number | Description | Stock / Unit Price | 
|---|---|---|---|
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                                    DS1308U-18+Maxim Integrated | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-UMAX  | 
                                
                                     In Stock: 1,614,500 $4.10000  | 
                            
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                                    CBC92132C-Q3-TR3Cymbet | 
                                
                                     POWER MANAGER / RTC 3.2V VBAT  | 
                                
                                     In Stock: 5,664 $1.67000  | 
                            
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                                    DS12885QN+T&RMaxim Integrated | 
                                
                                     IC RTC CLK/CALENDAR PAR 28-PLCC  | 
                                
                                     In Stock: 0 $5.46212  | 
                            
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                                    S-35190A-I8T1UABLIC U.S.A. Inc. | 
                                
                                     IC RTC CLK/CALENDAR SER SNT-8A  | 
                                
                                     In Stock: 38 $1.52000  | 
                            
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                                    M48T35Y-70MH1FSTMicroelectronics | 
                                
                                     IC RTC CLK/CALENDAR PAR 28SOH  | 
                                
                                     In Stock: 0 $20.03000  | 
                            
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                                    MCP7940N-E/SNRoving Networks / Microchip Technology | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-SOIC  | 
                                
                                     In Stock: 2,272 $0.80000  | 
                            
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                                    PCF85263ATL/AXNXP Semiconductors | 
                                
                                     IC RTC CLK/CALENDAR I2C 10DFN  | 
                                
                                     In Stock: 1,964 $0.97000  | 
                            
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                                    RTC-7301SF:B ROHSEpson | 
                                
                                     IC REAL TIME CLOCK/CALENDAR  | 
                                
                                     In Stock: 0 $7.25800  | 
                            
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                                    RV-3149-C3-32.768KHZ-OPTION-A-TB-QAMicro Crystal | 
                                
                                     IC RTC CLK/CALENDAR SPI 10-SON  | 
                                
                                     In Stock: 0 $4.61000  | 
                            
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                                    DS1306E+Maxim Integrated | 
                                
                                     IC RTC CLK/CALENDAR SPI 20-TSSOP  | 
                                
                                     In Stock: 276 $5.85000  |