What are Real Time Clocks ?
Parts in this category
Tap rows to select parts
Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.
| Part & Mfr | Total Stock | Pricing & RFQ | Current | Date Format | Features | Interface | Memory Size | Mounting Type | Operating Temperature | Supplier Device Package | Time Format | Type | Voltage | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices / Maxim Integrated
|
2,000
|
Price on request
2,000
|
25.3µA ~ 81µA @ 2V ~ 5V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | SPI | 96B | Surface Mount | -40°C ~ 85°C | 20-TSSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
1,984
|
Price on request
1,984
|
120µA ~ 160µA @ 3.63V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal | SPI | 256B | Surface Mount | -40°C ~ 85°C | 20-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2V ~ 3.8V | |
Microchip Technology
|
1,921
|
Price on request
1,921
|
1.2µA (Typ) @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | I²C, 2-Wire Serial | 64B | Surface Mount | -40°C ~ 85°C | 8-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
STMicroelectronics
|
1,847
|
Price on request
1,847
|
3mA @ 4.5V ~ 5.5V | YY-MM-DD-dd | Leap Year | Parallel | - | Surface Mount | 0°C ~ 70°C | 28-SOH | HH:MM:SS (24 hr) | Clock/Calendar | 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
1,802
|
Price on request
1,802
|
0.3µA ~ 1µA @ 2V ~ 5V | YY-MM-DD-dd | Leap Year, NVSRAM, Trickle-Charger | 3-Wire Serial | 31B | Surface Mount | 0°C ~ 70°C | 8-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
1,738
|
Price on request
1,738
|
150µA @ 2.97V ~ 3.63V | YY-MM-DD-dd | EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer | I²C, 2-Wire Serial | 512B | Surface Mount | -40°C ~ 85°C | 8-SOIC | HH:MM:SS:hh (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
Microchip Technology
|
1,729
|
Price on request
1,729
|
1.2µA @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | I²C, 2-Wire Serial | 64B, 1Kb | Surface Mount | -40°C ~ 85°C | 8-MSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
Microchip Technology
|
1,718
|
Price on request
1,718
|
1µA @ 1.8V ~ 3.6V | YY-MM-DD-dd | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | SPI | 64B | Surface Mount | -40°C ~ 85°C | 10-MSOP | HH:MM:SS:hh (12/24 hr) | Clock/Calendar | 1.3V ~ 3.6V | |
STMicroelectronics
|
1,704
|
Price on request
1,704
|
3mA @ 4.7V ~ 5.5V | YY-MM-DD-dd | Leap Year, Watchdog Timer | Parallel | - | Through Hole | 0°C ~ 70°C | 28-PCDIP, CAPHAT® | HH:MM:SS (24 hr) | Clock/Calendar | 4.75V ~ 5.5V | |
STMicroelectronics
|
1,700
|
Price on request
1,700
|
70µA @ 2V ~ 5.5V | YY-MM-DD-dd | Leap Year, NVSRAM | I²C, 2-Wire Serial | 56B | Surface Mount | -40°C ~ 85°C | 28-SOH | HH:MM:SS | Clock/Calendar | 2.5V ~ 3.5V | |
Analog Devices / Maxim Integrated
|
1,577
|
Price on request
1,577
|
3mA @ 5V | YY-MM-DD-dd | Alarm, NVSRAM, Square Wave Output, Y2K | Parallel | 242B | Surface Mount | -40°C ~ 85°C | 24-TSSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.5V ~ 3.7V | |
Analog Devices / Maxim Integrated
|
1,565
|
Price on request
1,565
|
120µA ~ 160µA @ 3.63V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal | SPI | 256B | Surface Mount | 0°C ~ 70°C | 20-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2V ~ 3.8V | |
Renesas
|
1,549
|
Price on request
1,549
|
0.65µA @ 1.8V | YY-MM-DD-dd | Alarm, Leap Year | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 8-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.8V ~ 3.6V | |
Analog Devices / Maxim Integrated
|
1,514
|
Price on request
1,514
|
0.6µA @ 1.3V ~ 1.8V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 16-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.8V ~ 5.5V | |
NXP Semiconductors
|
1,471
|
Price on request
1,471
|
0.6µA @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 8-HWSON (2x3) | HH:MM:SS (12/24 hr) | Clock/Calendar | 0.9V ~ 5.5V | |
Microchip Technology
|
1,470
|
Price on request
1,470
|
1.2µA @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM | I²C, 2-Wire Serial | 64B | Surface Mount | -40°C ~ 85°C | 8-TSSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
1,430
|
Price on request
1,430
|
200µA @ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, Trickle-Charger | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 16-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 3.7V | |
Analog Devices / Maxim Integrated
|
1,420
|
Price on request
1,420
|
120µA ~ 160µA @ 3.63V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal | SPI | 256B | Surface Mount | -40°C ~ 85°C | 20-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2V ~ 3.8V | |
Analog Devices / Maxim Integrated
|
1,414
|
Price on request
1,414
|
15mA @ 4.5V ~ 5.5V | YY-MM-DD-dd | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | Parallel | 114B | Through Hole | 0°C ~ 70°C | 24-EDIP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.5V ~ 4V | |
Analog Devices / Maxim Integrated
|
1,413
|
Price on request
1,413
|
4mA @ 3V ~ 3.6V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Parallel | 256B | Surface Mount | -40°C ~ 85°C | 32-TSOP | HH:MM:SS (24 hr) | Clock/Calendar | 2.5V ~ 3.7V | |
Analog Devices / Maxim Integrated
|
1,407
|
Price on request
1,407
|
130µA ~ 200µA @ 3.63V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 16-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.3V ~ 5.5V | |
STMicroelectronics
|
1,343
|
Price on request
1,343
|
3mA @ 4.7V ~ 5.5V | YY-MM-DD-dd | Leap Year | Parallel | - | Through Hole | 0°C ~ 70°C | 24-PCDIP, CAPHAT® | HH:MM:SS (24 hr) | Clock/Calendar | 4.75V ~ 5.5V | |
STMicroelectronics
|
1,319
|
Price on request
1,319
|
0.5mA @ 2.7V ~ 3.6V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | I²C, 2-Wire Serial | 128B | Surface Mount | -40°C ~ 85°C | 28-SO | HH:MM:SS:hh (24 hr) | Clock/Calendar | 2.5V ~ 3.6V | |
Analog Devices / Maxim Integrated
|
1,318
|
Price on request
1,318
|
2mA @ 3V | YY-MM-DD-dd | Alarm, NVSRAM, Square Wave Output, Y2K | Parallel | 242B | Through Hole | 0°C ~ 70°C | 24-EDIP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.5V ~ 3.7V | |
Analog Devices / Maxim Integrated
|
1,313
|
Price on request
1,313
|
2mA @ 3.3V | YY-MM-DD-dd | Leap Year, NVSRAM, Y2K | Parallel | 512KB | Surface Mount | -40°C ~ 85°C | 34-PowerCap Module | HH:MM:SS (24 hr) | Clock/Calendar | 3V | |
Analog Devices / Maxim Integrated
|
1,200
|
Price on request
1,200
|
4mA @ 3V ~ 3.6V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Parallel | 256B | Surface Mount | -40°C ~ 85°C | 28-TSOP | HH:MM:SS (24 hr) | Clock/Calendar | 2.5V ~ 3.7V | |
STMicroelectronics
|
1,200
|
Price on request
1,200
|
3mA @ 4.5V ~ 5.5V | YY-MM-DD-dd | Leap Year | Parallel | - | Through Hole | 0°C ~ 70°C | 24-PCDIP, CAPHAT® | HH:MM:SS (24 hr) | Clock/Calendar | 4.5V ~ 5.5V | |
ABLIC Inc.
|
1,200
|
Price on request
1,200
|
0.93µA ~ 1.1µA @ 3V ~ 5V | YY-MM-DD-dd | Alarm, Leap Year | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 8-TSSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
NXP Semiconductors
|
1,145
|
Price on request
1,145
|
1.5µA @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 20-SO | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.8V ~ 4.2V | |
Analog Devices / Maxim Integrated
|
1,120
|
Price on request
1,120
|
4mA @ 3V ~ 3.6V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Parallel | 256B | Surface Mount | 0°C ~ 70°C | 28-TSOP | HH:MM:SS (24 hr) | Clock/Calendar | 2.5V ~ 3.7V | |
STMicroelectronics
|
1,104
|
Price on request
1,104
|
2mA @ 3V ~ 3.6V | YY-MM-DD-dd | Leap Year | Parallel | - | Surface Mount | 0°C ~ 70°C | 28-SOH | HH:MM:SS (24 hr) | Clock/Calendar | 3V ~ 3.6V | |
STMicroelectronics
|
1,086
|
Price on request
1,086
|
2mA @ 3V ~ 3.6V | YY-MM-DD-dd | Leap Year | Parallel | - | Through Hole | 0°C ~ 70°C | 28-PCDIP, CAPHAT® | HH:MM:SS (24 hr) | Clock/Calendar | 3V ~ 3.6V | |
Analog Devices / Maxim Integrated
|
1,068
|
Price on request
1,068
|
200µA @ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, Trickle-Charger | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 8-uMAX/uSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 3.7V | |
Analog Devices / Maxim Integrated
|
1,012
|
Price on request
1,012
|
175µA @ 2.3V ~ 4.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM | I²C, 2-Wire Serial | 236B | Surface Mount | -40°C ~ 85°C | 8-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.3V ~ 4.5V | |
STMicroelectronics
|
1,001
|
Price on request
1,001
|
10µA @ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | SPI | 7B | Surface Mount | -40°C ~ 85°C | 16-QFN (4x4) | HH:MM:SS:hh (24 hr) | Clock/Calendar | 1.8V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
1,000
|
Price on request
1,000
|
150µA @ 2.97V ~ 3.63V | YY-MM-DD-dd | Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer | I²C | 512B | Surface Mount | -40°C ~ 85°C (TA) | 8-SOIC | HH:MM:SS:hh (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
NXP Semiconductors
|
1,000
|
Price on request
1,000
|
770nA ~ 2.135µA @ 1.2V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, SRAM, Watchdog Timer | I²C, SPI | 8B | Surface Mount, Wettable Flank | -40°C ~ 85°C (TA) | 16-HLSON (4.5x3.5) | HH:MM:SS:hh (12/24 hr) | Clock/Calendar | 1.2V ~ 5.5V | |
STMicroelectronics
|
1,000
|
Price on request
1,000
|
0.5mA @ 2.7V ~ 3.6V | YY-MM-DD-dd | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer | I²C, 2-Wire Serial | 44B | Surface Mount | -40°C ~ 85°C | 28-SO | HH:MM:SS:hh (24 hr) | Clock/Calendar | 2.5V ~ 3.5V | |
STMicroelectronics
|
1,000
|
Price on request
1,000
|
10µA @ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | SPI | 7B | Surface Mount | -40°C ~ 85°C | 16-QFN (4x4) | HH:MM:SS:hh (24 hr) | Clock/Calendar | 1.8V ~ 5.5V | |
Microchip Technology
|
1,000
|
Price on request
1,000
|
1.2µA (Typ) @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | I²C, 2-Wire Serial | 64B | Surface Mount | -40°C ~ 85°C | 8-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
STMicroelectronics
|
1,000
|
Price on request
1,000
|
10µA @ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | SPI | 7B | Surface Mount | -40°C ~ 85°C | 16-QFN (4x4) | HH:MM:SS:hh (24 hr) | Clock/Calendar | 1.8V ~ 5.5V | |
Nisshinbo Micro Devices
|
1,000
|
Price on request
1,000
|
1µA @ 3V | YY-MM-DD-dd | Alarm, Leap Year | 4-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 10-TSSOPG | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.7V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
977
|
Price on request
977
|
150µA @ 5.5V | YY-MM-DD-dd | Leap Year, Trickle-Charger | I²C, 2-Wire Serial | - | Surface Mount | -40°C ~ 85°C | 8-uMAX/uSOP | HH:MM:SS (24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
Microchip Technology
|
975
|
Price on request
975
|
1.2µA (Typ) @ 3.3V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | I²C, 2-Wire Serial | 64B | Surface Mount | -40°C ~ 85°C | 8-MSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.3V ~ 5.5V | |
Diodes Incorporated
|
952
|
Price on request
952
|
125µA @ 2.7V ~ 5.5V | YY-MM-DD-dd | Leap Year, NVSRAM, Square Wave Output | I²C, 2-Wire Serial | 56B | Surface Mount | -40°C ~ 85°C | 8-MSOP | HH:MM:SS (12/24 hr) | Clock/Calendar | 1.5V ~ 3.7V | |
Texas Instruments
|
900
|
Price on request
900
|
- | YY-MM-DD-dd | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | Parallel | 114B | Through Hole | 0°C ~ 70°C | 24-PDIP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.5V ~ 4V | |
Epson
|
870
|
Price on request
870
|
0.55µA ~ 0.6µA @ 3V ~ 5V | YY-MM-DD-dd | Alarm, Leap Year, RAM | I²C, 2-Wire Serial | 16B | Surface Mount | -40°C ~ 85°C | 12-VSOJ | HH:MM:SS (24 hr) | Clock/Calendar | 1.6V ~ 5.5V | |
Texas Instruments
|
851
|
Price on request
851
|
300µA @ 5V | YY-MM-DD-dd | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | Parallel | 242B | Through Hole | 0°C ~ 70°C | 24-PDIP | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.5V ~ 4V | |
STMicroelectronics
|
845
|
Price on request
845
|
3mA @ 4.5V ~ 5.5V | YY-MM-DD-dd | Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K | Parallel | - | Surface Mount | 0°C ~ 70°C | 44-SOH | HH:MM:SS (24 hr) | Clock/Calendar | 3V | |
Texas Instruments
|
805
|
Price on request
805
|
1.5mA (Typ) @ 2.7 V ~ 3.6 V | YY-MM-DD-dd | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | Parallel | - | Surface Mount | 0°C ~ 70°C | 28-SOIC | HH:MM:SS (12/24 hr) | Clock/Calendar | 2.4V ~ 4V |