| Photo | Mfr. Part # | Availability | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | MCP79402T-I/MNYIC RTC CLK/CALENDAR I2C 8TDFN | 0 |  |  Datasheet | - | 8-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-TDFN (2x3) | 
|   | MCP79411T-I/MSIC RTC CLK/CALENDAR I2C 8MSOP | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-MSOP | 
|  | MCP79411T-I/STIC RTC CLK/CALENDAR I2C 8TSSOP | 0 |  |  Datasheet | - | 8-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-TSSOP | 
|   | MCP79412T-I/MSIC RTC CLK/CALENDAR I2C 8MSOP | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-MSOP | 
|  | MCP79412T-I/STIC RTC CLK/CALENDAR I2C 8TSSOP | 0 |  |  Datasheet | - | 8-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-TSSOP | 
|   | RX4111CE A6IC RTC CLK/CALENDAR SPI 10SMD | 0 |  |  Datasheet | RX4111CE | 10-SMD, No Lead | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm | - | HH:MM:SS | YY-MM-DD | SPI, 4-Wire Serial | 1.6V ~ 5.5V | 1.1V ~ 5.5V | 3µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SMD | 
|   | DS2417X/T&RIC RTC BINARY CNT 1-WIRE 6FLIP | 0 |  |  Datasheet | - | 6-VBGA, FCBGA | Tape & Reel (TR) | 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-FlipChip (2.82x2.54) | 
|  | EM3027IDSSO8B+IC RTC CLK/CALENDAR I2C 8SOIC | 0 |  | - | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Last Time Buy | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, RAM, Trickle-Charger | 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, SPI | 1.4V ~ 5.5V | 1.4V ~ 5.5V | 0.4µA @ 5V | -40°C ~ 125°C (TA) | Surface Mount | - | - | 8-SOIC | 
|   | MCP79401T-I/MNYIC RTC CLK/CALENDAR I2C 8TDFN | 0 |  |  Datasheet | - | 8-WFDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-TDFN (2x3) | 
|   | MCP79510T-I/MNIC RTC CLK/CALENDAR SPI 10TDFN | 0 |  | - | - | 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) | 
|   | M41T0M6EIC RTC CLK/CALENDAR I2C 8SOIC | 0 |  |  Datasheet | - | 8-SOIC (0.154", 3.90mm 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 | - | - | 8-SOIC | 
|   | MAX31341EWC+TIC REAL TIME CLK LO CURRENT W/I2 | 0 |  | - | - | - | Tape & Reel (TR) | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
|   | DS1371U+C01IC RTC BINARY COUNTER I2C 8UMAX | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Obsolete | Not Verified | Binary Counter | Alarm, Square Wave Output, Watchdog Timer | - | Binary | Binary | I2C, 2-Wire Serial | 1.7V ~ 5.5V | - | 1.3µA @ 1.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-uMAX/uSOP | 
|   | M41T80M6EIC RTC CLK/CALENDAR I2C 8SOIC | 0 |  |  Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2V ~ 5.5V | - | 2.4µA ~ 31µA @ 2V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
|   | DS1340U-33/T&RIC RTC CLOCK/CALENDAR I2C 8UMAX | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year, Trickle-Charger | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.97V ~ 5.5V | 1.3V ~ 5.5V | 150µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-uMAX/uSOP | 
|  | DS1340Z-33/T&RIC RTC CLK/CALENDAR I2C 8SOIC | 0 |  |  Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year, Trickle-Charger | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.97V ~ 5.5V | 1.3V ~ 5.5V | 150µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC | 
|  | DS1337S/T&RIC RTC CLK/CALENDAR I2C 8SOIC | 0 |  |  Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | 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 | 
|   | DS1337U/T&RIC RTC CLOCK/CALENDAR I2C 8UMAX | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | 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-uMAX/uSOP | 
|   | PCF8583BS,518IC RTC CLK/CALENDAR I2C 20HVQFN | 0 |  |  Datasheet | - | 20-VQFN Exposed Pad | Tape & Reel (TR) | 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 | - | - | 20-HVQFN (5x5) | 
|  | DS1337S+C01IC RTC CLK/CALENDAR I2C 8SOIC | 0 |  |  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 |