| 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | RV-3129-C3-32.768KHZ-OPTION-B-TB-QAIC RTC CLK/CALENDAR I2C 10SON | 19,922 |  |  Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger | 2B, 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.3V ~ 5.5V | - | 1µA @ 3V | -40°C ~ 125°C (TA) | Surface Mount | Automotive | AEC-Q200 | 10-SON (3.7x2.5) | 
|   | ISL12057IUZ-TIC RTC CLK/CALENDAR I2C 8MSOP | 1,571 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 3.6V | - | 0.65µA @ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP | 
|   | ISL12057IUZIC RTC CLK/CALENDAR I2C 8MSOP | 1,201 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tube | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 3.6V | - | 0.65µA @ 1.8V | -40°C ~ 85°C | Surface Mount | - | - | 8-MSOP | 
|   | ISL1208IB8Z-TKIC RTC CLK/CALENDAR I2C 8SOIC | 10,275 |  |  Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-SOIC | 
|   | RV-3028-C7 32.768KHZ 1PPM-TA-QCIC RTC CLK/CALENDAR I2C 8SON | 29,131 |  |  Datasheet | C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger | 2B, 43B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.1V ~ 5.5V | 1.1V ~ 5.5V | 0.06µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-SON (3.2x1.5) | 
|   | R2025S-E2-FEIC RTC CLK/CALENDAR I2C 14SOP | 6,632 |  |  Datasheet | - | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.7V ~ 5.5V | - | 120µA ~ 1.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP | 
|   | PCA2131TF/Q900YIC RTC W/XTAL AUTO HLSON16 | 1,246 |  |  Datasheet | - | - | Tape & Reel (TR) | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
|   | RV-3028-C7 32.768KHZ 1PPM-TA-QAIC RTC CLK/CALENDAR I2C 8SON | 84,366 |  |  Datasheet | C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger | 2B, 43B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.1V ~ 5.5V | 1.1V ~ 5.5V | 0.06µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | Automotive | AEC-Q200 | 8-SON (3.2x1.5) | 
|   | RV-2123-C2-32.768KHZ-20PPM-TA-QCIC RTC CLK/CALENDAR SPI 10SON | 39,417 |  |  Datasheet | C2 | 10-TDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Programmable Clock Output, Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI, 4-Wire Serial | 1.1V ~ 5.5V | - | 0.18µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (5x3.2) | 
|   | M41T94MQ6FIC RTC CLK/CALENDAR SPI 16SO | 5,978 |  |  Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer | 44B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | SPI | 2.7V ~ 5.5V | 2.5V ~ 3.5V | 1.4mA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 16-SO | 
|   | RV-8803-C7-32.768KHZ-3PPM-TA-QCIC RTC CLK/CALENDAR I2C 8SON | 9,374 |  |  Datasheet | C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer | 1B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.5V ~ 5.5V | - | 0.35µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-SON (3.2x1.5) | 
|   | ISL1208IU8Z-TKIC RTC CLK/CALENDAR I2C 8MSOP | 4,628 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | 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 | - | - | 8-MSOP | 
|   | RV-8803-C7-32.768KHZ-3PPM-TA-QAIC RTC CLK/CALENDAR I2C 8SON | 19,258 |  |  Datasheet | C7 | 8-WCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer | 1B | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.5V ~ 5.5V | - | 0.35µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | Automotive | AEC-Q200 | 8-SON (3.2x1.5) | 
|   | M41T93RMY6FIC RTC CLK/CALENDAR SPI 18SOX | 8,712 |  |  Datasheet | - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tape & Reel (TR) | Active | 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 | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
|   | M41T83ZMY6FIC RTC CLK/CALENDAR I2C 18SOX | 885 |  |  Datasheet | - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 7B | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.38V ~ 5.5V | 2V ~ 5.5V | 10µA @ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
|   | PCF2127T/2YIC RTC CLOCK/CALENDAR I2C 16SO | 1,052 |  |  Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer | 512B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 4.2V | 1.8V ~ 4.2V | 1.5µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 16-SO | 
|   | RV-3129-C3-32.768KHZ-OPTION-B-TA-QCIC RTC CLK/CALENDAR I2C 10SON | 13,432 |  |  Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger | 2B, 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.3V ~ 5.5V | - | 1µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (3.7x2.5) | 
|   | PCF2127AT/2YIC RTC CLOCK/CALENDAR I2C 20SO | 5,658 |  |  Datasheet | - | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer | 512B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 4.2V | 1.8V ~ 4.2V | 1.5µA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 20-SO | 
|   | RV-3149-C3-32.768KHZ-OPTION-B-TA-QCIC RTC CLK/CALENDAR SPI 10SON | 4,648 |  |  Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger | 2B, 8B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI, 4-Wire Serial | 1.3V ~ 5.5V | - | 1µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (3.7x2.5) | 
|   | RV-8523-C3-32.768KHZ-20PPM-TA-QCIC RTC CLK/CALENDAR I2C 10SON | 8,898 |  |  Datasheet | C3 | 10-VCDFN | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Battery Switch, Leap Year, Programmable Clock Output, Timer, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.2V ~ 5.5V | - | 0.18µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (3.7x2.5) |