Real Time Clocks

Results:
2,510
Manufacturer
Series
Current - Timekeeping (Max)
Supplier Device Package
Package / Case
Features
Voltage - Supply
Voltage - Supply, Battery
Memory Size
Interface
Operating Temperature
Type
Time Format
Date Format
Mounting Type
Qualification
Grade
Results remaining2,510
Select
ImageProduct DetailPriceAvailabilityECAD ModelSeriesMounting TypeOperating TemperatureMemory SizePackage / CaseSupplier Device PackageInterfaceGradeVoltage - SupplyTypeFeaturesTime FormatDate FormatVoltage - Supply, BatteryCurrent - Timekeeping (Max)Qualification
PCF85063ATT/AJ
IC RTC CLK/CALENDAR I2C 8TSSOP
5+
$0.3357
10+
$0.3133
15+
$0.3021
Quantity
255,780 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-TSSOP
I²C, 2-Wire Serial
-
0.9V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.6µA @ 3.3V
-
S-35390A-T8T1G
IC RTC CLK/CALENDAR I2C 8-TSSOP
5+
$0.4196
10+
$0.3916
15+
$0.3776
Quantity
85,816 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-TSSOP (0.173", 4.40mm Width)
8-TSSOP
I²C, 2-Wire Serial
-
1.3V ~ 5.5V
Clock/Calendar
Alarm, Leap Year
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.93µA ~ 1.1µA @ 3V ~ 5V
-
PCA85063ATT/AJ
IC RTCC I2C/ALARM 8TSSOP
5+
$0.6294
10+
$0.5874
15+
$0.5664
Quantity
65,600 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 105°C
-
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-TSSOP
I²C, 2-Wire Serial
Automotive
0.9V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
1.8µA @ 5V
AEC-Q100
PCF85263AT/AJ
IC RTC CLK/CALENDAR I2C 8SO
5+
$0.8811
10+
$0.8224
15+
$0.7930
Quantity
65,236 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-SOIC (0.154", 3.90mm Width)
8-SO
I²C, 2-Wire Serial
-
0.9V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Watchdog Timer
HH:MM:SS:hh (12/24 hr)
YY-MM-DD-dd
0.9V ~ 5.5V
0.885µA @ 3.3V
-
S-35390A-J8T1U
IC RTC CLK/CALENDAR I2C 8SOP
5+
$0.3357
10+
$0.3133
15+
$0.3021
Quantity
59,600 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-SOIC (0.154", 3.90mm Width)
8-SOP-J
I²C, 2-Wire Serial
-
1.3V ~ 5.5V
Clock/Calendar
Alarm, Leap Year
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
14µA ~ 30µA @ 3V ~ 5V
-
PCF85063AT/AY
IC RTC CLK/CALENDAR I2C 8SO
5+
$0.6503
10+
$0.6070
15+
$0.5853
Quantity
50,880 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C (TA)
-
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C
-
0.9V ~ 5.5V, 1.8V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.6µA @ 3.3V
-
MCP79411T-I/SN
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.8392
10+
$0.7832
15+
$0.7552
Quantity
50,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
64B, 1Kb
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C, 2-Wire Serial
-
1.8V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
1.3V ~ 5.5V
1.2µA @ 3.3V
-
PCF8563T/5,518
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.4825
10+
$0.4503
15+
$0.4343
Quantity
50,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-SOIC (0.154", 3.90mm Width)
8-SO
I²C, 2-Wire Serial
-
1V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Watchdog Timer
HH:MM:SS (24 hr)
YY-MM-DD-dd
-
0.6µA ~ 0.75µA @ 2V ~ 5V
-
MCP7940NT-I/MS
IC RTC CLK/CALENDAR I2C 8-MSOP
5+
$1.3007
10+
$1.2140
15+
$1.1706
Quantity
45,208 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
64B
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-MSOP
I²C, 2-Wire Serial
Automotive
1.8V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
1.3V ~ 5.5V
1.2µA @ 3.3V
AEC-Q100
DS1302Z+T&R
IC RTC CLK/CALENDAR SER 8SOIC
5+
$0.5874
10+
$0.5483
15+
$0.5287
Quantity
43,213 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
0°C ~ 70°C
31B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
3-Wire Serial
-
2V ~ 5.5V
Clock/Calendar
Leap Year, NVSRAM, Trickle-Charger
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
2V ~ 5.5V
0.3µA ~ 1µA @ 2V ~ 5V
-
DS1302Z+T&R
IC RTC CLK/CALENDAR SER 8-SOIC
5+
$0.5874
10+
$0.5483
15+
$0.5287
Quantity
43,213 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
0°C ~ 70°C
31B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
3-Wire Serial
2V ~ 5.5V
Clock/Calendar
Leap Year, NVSRAM, Trickle-Charger
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
2V ~ 5.5V
0.3µA ~ 1µA @ 2V ~ 5V
MAX6900ETT+T
IC RTC CLK/CALENDAR I2C 6-TDFN
5+
$1.6783
10+
$1.5664
15+
$1.5105
Quantity
42,639 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
31B
6-WDFN Exposed Pad
6-TDFN (3x3)
I²C, 2-Wire Serial
-
2V ~ 5.5V
Clock/Calendar
Leap Year, NVSRAM
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.63µA ~ 1.7µA
-
PCF85063TP/1Z
IC RTC CLK/CALENDAR I2C 8-SON
5+
$0.6084
10+
$0.5678
15+
$0.5476
Quantity
40,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-WFDFN Exposed Pad
8-HWSON (2x3)
I²C, 2-Wire Serial
-
0.9V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.6µA @ 3.3V
-
MAX31343ETAY+T
ACCURATE/ROBUST RTC WITH INTEGRA
5+
$4.6154
10+
$4.3077
15+
$4.1538
Quantity
40,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C (TA)
64B
8-VFBGA, WLBGA
8-WLP (2.07x2.27)
I²C
-
1.6V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, RAM, Square Wave Output, SRAM, Trickle Charger
HH:MM:SS (24 hr)
YY-MM-DD-dd
1.6V ~ 5.5V
1.2µA ~ 2µA @ 1.6V ~ 5.5V
-
PT7C4311WEX
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.6294
10+
$0.5874
15+
$0.5664
Quantity
35,313 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
56B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C, 2-Wire Serial
-
1.2V ~ 5.5V
Clock/Calendar
Leap Year, Square Wave Output, Y2K
HH:MM:SS (24 hr)
YY-MM-DD-dd
2V ~ 5.5V
70µA @ 1.5V ~ 5.5V
-
DS1391U-33+T&R
IC RTC CLK/CALENDAR SPI 10-USOP
5+
$1.2587
10+
$1.1748
15+
$1.1329
Quantity
32,635 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
10-uMAX/uSOP
SPI
2.97V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, Square Wave Output, Trickle-Charger
HH:MM:SS:hh (12/24 hr)
YY-MM-DD-dd
1.3V ~ 5.5V
175µA @ 2.97V ~ 5.5V
S-35390A-J8T1G
IC RTC CLK/CALENDAR I2C 8-SOP
5+
$0.4196
10+
$0.3916
15+
$0.3776
Quantity
32,540 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
-
8-SOIC (0.154", 3.90mm Width)
8-SOP-J
I²C, 2-Wire Serial
-
1.3V ~ 5.5V
Clock/Calendar
Alarm, Leap Year
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
-
0.93µA ~ 1.1µA @ 3V ~ 5V
-
ISL1208IB8Z-TK
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.4196
10+
$0.3916
15+
$0.3776
Quantity
30,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
2B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C, 2-Wire Serial
-
2.7V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, SRAM
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
1.8V ~ 5.5V
4µA ~ 6µA @ 3V ~ 5V
-
DS1307ZN
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.4825
10+
$0.4503
15+
$0.4343
Quantity
29,800 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
56B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C, 2-Wire Serial
-
4.5V ~ 5.5V
Clock/Calendar
Leap Year, NVSRAM, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
2V ~ 3.5V
200µA @ 5V
-
PT7C4307WEX
IC RTC CLK/CALENDAR I2C 8-SOIC
5+
$0.7343
10+
$0.6853
15+
$0.6608
Quantity
28,257 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
Surface Mount
-40°C ~ 85°C
56B
8-SOIC (0.154", 3.90mm Width)
8-SOIC
I²C, 2-Wire Serial
-
4.5V ~ 5.5V
Clock/Calendar
Alarm, Leap Year, NVSRAM, Square Wave Output
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
2V ~ 3.5V
1.5mA @ 4.5V ~ 5.5V
-

Real Time Clocks

Real-time clocks (RTCs) are a type of integrated circuit (IC) used in clock/timing applications to provide accurate timekeeping capabilities. These ICs are specifically designed to keep track of real-world time, including hours, minutes, seconds, and sometimes even date and month information. Real-time clocks typically consist of a combination of a low-power oscillator, a counter, and a set of registers for storing time and date information. They are often equipped with a backup power source, such as a battery or a supercapacitor, to ensure that timekeeping remains accurate even during power interruptions. The primary function of RTCs is to continuously track the passage of time, independent of external power sources. They are commonly used in electronic devices that require accurate timekeeping, such as computers, embedded systems, communication equipment, and consumer electronics like digital watches and clocks. RTC ICs provide several features to enhance timekeeping accuracy and functionality. These may include automatic leap year adjustment, daylight saving time support, alarm functionality, and synchronization capabilities with external timing references, such as GPS signals. Real-time clocks can communicate with other components or microcontrollers through various interfaces, such as I2C (Inter-Integrated Circuit) or SPI (Serial Peripheral Interface), allowing for easy integration into larger electronic systems. Overall, RTCs play a crucial role in providing accurate and reliable timekeeping in a wide range of applications, ensuring that devices display the correct time and can perform time-dependent functions accurately.