| 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | RX-4035SAB0 PURE SNIC RTC TIME EVENT REC SPI 14SOP | 0 |  |  Datasheet | - | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
|   | RTC-8564JE0:ROHSIC RTC CLK/CALENDAR I2C 20VSOJ | 0 |  |  Datasheet | RTC-8564JE | 20-LSSOJ (0.213", 5.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Y2K | - | HH:MM:SS | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.8V ~ 5.5V | - | 0.7µA ~ 0.8µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-VSOJ | 
|   | AB0814-T3IC RTC CLK/CALENDAR SPI 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 256B | HH:MM:SS:hh | YY-MM-DD-dd | SPI | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | AB1803-T3IC RTC CLK/CALENDAR I2C 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger | 64B | HH:MM:SS:hh | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | AB1813-T3IC RTC CLK/CALENDAR SPI 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger | 64B | HH:MM:SS:hh | YY-MM-DD-dd | SPI | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | AB0804-T3IC RTC CLK/CALENDAR I2C 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 256B | HH:MM:SS:hh | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | M41T65Q6FIC RTC CLK/CALENDAR I2C 16QFN | 0 |  |  Datasheet | Timekeeper® | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.3V ~ 4.4V | - | 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | DS1390U-18+T&RDS1390U-18+T&R | 0 |  |  Datasheet | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | SPI, 4-Wire Serial | 1.71V ~ 1.89V | 1.3V ~ 3.7V | 100µA @ 1.71V ~ 1.89V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-uMAX/uSOP | 
|   | DS1305EN/T&RIC RTC CLK/CALENDAR SPI 20TSSOP | 0 |  |  Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Trickle-Charger | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2V ~ 5.5V | 2V ~ 5.5V | 25.3µA ~ 81µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP | 
|   | RV-8564-C2-32.768KHZ-10PPM-TA-QCIC RTC CLK/CALENDAR I2C 10SON | 0 |  |  Datasheet | C2 | 10-TDFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Programmable Clock Output, Timer | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 1V ~ 5.5V | - | 0.35µA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 10-SON (5x3.2) | 
|   | RX-4045NBAA0 PURE SNIC RTC CLK/CALENDAR SPI 22SON | 0 |  |  Datasheet | - | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
|   | RX-8035LCB0 PURE SNIC RTC EVENT REC I2C 12VSOJ | 0 |  |  Datasheet | RX-8035LC | 12-TFSOJ (0.094", 2.40mm Width) | Tape & Reel (TR) | Active | Not Verified | Time Event Recorder | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ | 
|   | AB1814-T3IC RTC CLK/CALENDAR SPI 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 256B | HH:MM:SS:hh | YY-MM-DD-dd | SPI | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | AB1804-T3IC RTC CLK/CALENDAR I2C 16QFN | 0 |  |  Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 256B | HH:MM:SS:hh | YY-MM-DD-dd | I2C, 2-Wire Serial | 1.7V ~ 3.6V | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | -40°C ~ 85°C | Surface Mount | - | - | 16-QFN (3x3) | 
|   | M41T81SMY6EIC RTC CLK/CALENDAR I2C 18SOX | 0 |  |  Datasheet | - | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 2V ~ 3.5V | 100µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 18-SOX | 
|   | RX-8035LCAA0 PURE SNIC RTC EVENT REC I2C 12VSOJ | 0 |  |  Datasheet | RX-8035LC | 12-TFSOJ (0.094", 2.40mm Width) | Tape & Reel (TR) | Active | - | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 2.4V ~ 5.5V | 1V ~ 5.5V | 2.5µA @ 3V | -40°C ~ 85°C | Surface Mount | - | - | 12-VSOJ | 
|   | RV-2123-C2-32.768KHZ-20PPM-TA-QATIMING REAL TIME CLOCK | 0 |  |  Datasheet | C2 | 10-TDFN Exposed Pad | Bulk | Active | - | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS | YY-MM-DD-dd | SPI, 4-Wire Serial | 5.5V | - | 180nA @ 3V | -40°C ~ 85°C (TA) | Surface Mount | Automotive | AEC-Q100 | 10-SON (5x3.2) | 
|   | RTC-4574SA:B3 ROHSIC RTC CLK/CALENDAR SER 14SOP | 0 |  |  Datasheet | RTC-4574SA | 14-SOIC (0.197", 5.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3-Wire Serial | 1.6V ~ 5.5V | - | 1µA ~ 2µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOP | 
|   | DS1306ENIC RTC CLK/CALENDAR SPI 20TSSOP | 0 |  |  Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2V ~ 5.5V | 2V ~ 5.5V | 25.3µA ~ 81µA @ 2V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP | 
|   | DS1308U-3+TIC RTC CLOCK/CALENDAR I2C 8UMAX | 0 |  |  Datasheet | - | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.3V ~ 5.5V | - | -40°C ~ 85°C | Surface Mount | - | - | 8-uMAX/uSOP |