| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Package/Case | Packaging | Series | ProductStatus | Type | Features | MemorySize | TimeFormat | DateFormat | Interface | Voltage-Supply | Voltage-SupplyBattery | Current-Timekeeping(Max) | OperatingTemperature | MountingType | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | ISL12028IBZRTC, VOLATILE | 2,614 | - | RFQ |   Datasheet | 14-SOIC (0.154, 3.90mm Width) | Tube | - | Obsolete | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | 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 | 
|   | ISL12027IBAZ-TRTC, NON-VOLATILE | 3,954 | - | RFQ |   Datasheet | 8-SOIC (0.154, 3.90mm Width) | Bulk | - | Obsolete | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | 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 | 
|   | ISL1208IB8RTC, NON-VOLATILE | 3,930 | - | RFQ |   Datasheet | 8-SOIC (0.154, 3.90mm Width) | Tube | - | Obsolete | 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 | 
|   | ISL12027IBZRTC, NON-VOLATILE | 3,787 | - | RFQ |   Datasheet | 8-SOIC (0.154, 3.90mm Width) | Tube | - | Obsolete | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | 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 | 
|   | X1228V14I-4.5ARTC, VOLATILE | 3,146 | - | RFQ |   Datasheet | 14-TSSOP (0.173, 4.40mm Width) | Tube | - | Obsolete | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | 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 ~ 5V | -40°C ~ 85°C | Surface Mount | 
|   | CDP1879ECMOS REAL-TIME CLOCK | 2,369 | - | RFQ |   Datasheet | 24-DIP (0.600, 15.24mm) | Bulk | - | Obsolete | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD | - | 4V ~ 10.5V | - | 200µA @ 10V | -40°C ~ 85°C (TA) | Through Hole | 
|   | HD146818RXPREAL TIME CLOCK PLUS RAM | 2,406 | - | RFQ | - | Bulk | * | Obsolete | - | - | - | - | - | - | - | - | - | - | - | |
|   | CDP6818ADXCMOS REAL-TIME CLOCK WITH RAM | 2,923 | - | RFQ |   Datasheet | 24-CDIP (0.300, 7.62mm) | Bulk | - | Active | Clock/Calendar | Alarm, Leap Year, Square Wave Output | 50B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 3V ~ 6V | - | 50µA ~ 3mA @ 3V ~ 5V | 0°C ~ 70°C (TA) | Through Hole | 
|   | ISL12027IBAZR5328REAL TIME CLOCK, NON-VOLATILE | 3,396 | - | RFQ | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | |
|   | ISL12020CBZREAL TIME CLOCK, NON-VOLATILE | 2,210 | - | RFQ |   Datasheet | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | 
|   | DS1307Z/TRDS1307 64 X 8, SERIAL, I2C RTC | 2,864 | - | RFQ |   Datasheet | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | 
|   | DS1337U/TRDS1337 I2C SERIAL RTC | 3,688 | - | RFQ |   Datasheet | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | 
|   | PCF8593P112RTC VOLATILE 0 TIMER(S) | 3,848 | - | RFQ |   Datasheet | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | 
|   | DS1339U-3DS1339 I2C SERIAL RTC | 2,177 | - | RFQ |   Datasheet | - | Bulk | * | Active | - | - | - | - | - | - | - | - | - | - | - | 
|   | BQ4802YDWG4REAL TIME CLOCK, NON-VOLATILE, 1 | 3,340 | - | RFQ |   Datasheet | 28-SOIC (0.295, 7.50mm Width) | Bulk | - | Active | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | 16B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 4V | 1.5mA @ 4.5V ~ 5.5V | 0°C ~ 70°C | Surface Mount | 
|   | ICM7170AIPGREAL TIME CLOCK, CMOS, PDIP24 | 2,168 | - | RFQ |   Datasheet | 24-DIP (0.600, 15.24mm) | Bulk | - | Active | Clock/Calendar | Alarm | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 1.9V, 2.6V ~ 5.5V | 2.8V ~ 3.5V | 20µA @ 5V | -40°C ~ 85°C (TA) | Through Hole | 
|   | ICM7170AIBGREAL TIME CLOCK, CMOS, PDSO24 | 2,820 | - | RFQ |   Datasheet | 24-SOIC (0.295, 7.50mm Width) | Bulk | - | Active | Clock/Calendar | Alarm | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | - | 1.9V, 2.6V ~ 5.5V | 2.8V ~ 3.5V | 20µA @ 5V | -40°C ~ 85°C (TA) | Surface Mount | 
|   | MAX31341CETB+TRTC WITH POWER MANAGEMENT | 3,596 | - | RFQ | 10-WFDFN Exposed Pad | Tape & Reel (TR),Cut Tape (CT) | - | Active | Clock/Calendar | Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger | 64B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I²C | 1.6V ~ 3.6V | 1.6V ~ 3.6V | 0.33µA ~ 0.39µA @ 1.6V ~ 3.6V | -40°C ~ 85°C | Surface Mount | |
|   | MCP79402-I/MSIC RTC CLK/CALENDAR I2C 8-MSOP | 3,521 | - | RFQ |   Datasheet | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | Tube | - | Active | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 1.2µA (Typ) @ 3.3V | -40°C ~ 85°C | Surface Mount | 
|   | MCP79412T-I/SNIC RTC CLK/CALENDAR I2C 8-SOIC | 2,818 | - | RFQ |   Datasheet | 8-SOIC (0.154, 3.90mm Width) | Tape & Reel (TR),Cut Tape (CT) | - | Active | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | 64B, 1Kb | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 1.2µA @ 3.3V | -40°C ~ 85°C | Surface Mount |