| Type | Description | 
|---|---|
| Series: | - | 
| Package: | Tape & Reel (TR) | 
| Part Status: | Obsolete | 
| Type: | Clock/Calendar | 
| Features: | Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 
| Memory Size: | 31B | 
| Time Format: | HH:MM:SS (12/24 hr) | 
| Date Format: | YY-MM-DD-dd | 
| Interface: | 3-Wire Serial | 
| Voltage - Supply: | 1.2V ~ 5.5V | 
| Voltage - Supply, Battery: | 1.2V ~ 5.5V | 
| Current - Timekeeping (Max): | 25.3µA ~ 81µA @ 2V ~ 5V | 
| Operating Temperature: | -40°C ~ 85°C (TA) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 8-WFDFN Exposed Pad | 
| Supplier Device Package: | 8-TDFN (2x3) | 
| Image | Part Number | Description | Stock / Unit Price | 
|---|---|---|---|
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                                    MCP7940M-I/MSRoving Networks / Microchip Technology | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-MSOP  | 
                                
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                                    ISL12026AIVZIntersil (Renesas Electronics America) | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-TSSOP  | 
                                
                                     In Stock: 0 $2.10420  | 
                            
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                                    MCP7940N-I/SNRoving Networks / Microchip Technology | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-SOIC  | 
                                
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                                    BU9873FVM-GTTRROHM Semiconductor | 
                                
                                     IC RTC CLK/CALENDAR I2C 8MSOP  | 
                                
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                                    DS1244WP-120IND+Linear Technology (Analog Devices, Inc.) | 
                                
                                     REAL TIME CLOCK, NON-VOLATILE, C  | 
                                
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                                    DS1673E-5+Linear Technology (Analog Devices, Inc.) | 
                                
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                                    RV-8263-C7-32.768KHZ-20PPM-TA-QAMicro Crystal | 
                                
                                     IC RTC CLK/CALENDAR I2C 8-SMT  | 
                                
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                                    DS1344E-33+Maxim Integrated | 
                                
                                     IC RTC CLK/CALENDAR SPI 20-TSSOP  | 
                                
                                     In Stock: 91,370 $4.99000  | 
                            
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                                    RX-4571LC:B PURE SNEpson | 
                                
                                     IC REAL TIME CLOCK/CALENDAR  | 
                                
                                     In Stock: 0 $2.76980  | 
                            
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                                    ISL1209IU10Z-TKIntersil (Renesas Electronics America) | 
                                
                                     IC RTC EVENT REC I2C 10-MSOP  | 
                                
                                     In Stock: 0 $3.46000  |