Real Time Clocks:

545 Products Found
Real-Time Clock products offer a diverse range of real-time clock (RTC) solutions for networking and embedded applications. The primary function of RTC is to keep time and calendar data.We offer Real Time Clock (RTC) functions including Alarm RTC, Binary Counter, Real Time Calendar Clock (RTCC), Elapsed Time Recorder and Real Time Event Recorder. Use of a hardware RTC allows microcontrollers like the Raspberry Pi to be used without internet access and still provide services that use time stamps. For example, the DS1307 is a commonly available I2C based RTC module – so using the DS1307’s I2C protocol, which is supported by the Raspberry Pi, real time clock support can easily and cost-effectively be added.Another popular RTC module, also with I2C support, is the DS3231. The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when mains power to the device is interrupted. Accuracy is ±2ppm from 0°C to +40°C, and ±3.5ppm from -40°C to +85°C.Apart from I2C, other interface types include 2 wire, 3 wire, 4 wire, Motorola Serial Peripheral Interface (SPI), Bytewide, Parallel, Multiplexed, and Phantom Clock.Operating temperatures range from -40°C minimum to +125°C maximum. Products are available to the AEC-Q100 Automotive Qualification Standard.
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ComparePrice ForQuantity
1823155

RoHS

Each
1+
RM6.350
25+
RM5.560
100+
RM4.600
Min: 1 / Mult: 1
DD:MM:YY
HH:MM:SS
RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
MCP79410 MCP79411 MCP79412
AEC-Q100
2361122

RoHS

Each
1+
RM5.250
25+
RM4.590
100+
RM3.800
200+
RM3.580
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
AEC-Q100
2400452RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM3.270
250+
RM3.230
500+
RM3.180
1000+
RM3.140
2500+
RM3.090
Min: 100 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1.2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2515369

RoHS

Each
1+
RM24.330
10+
RM18.620
50+
RM16.330
100+
RM15.630
250+
RM14.880
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
4.5V
5.5V
DIP
8Pins
I2C, Serial
0°C
70°C
-
-
2427483

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM3.980
10+
RM2.580
100+
RM2.130
500+
RM2.030
1000+
RM1.890
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
HWSON
8Pins
I2C
-40°C
85°C
-
-
2400452

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM5.670
10+
RM3.720
50+
RM3.680
100+
RM3.270
250+
RM3.230
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1.2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2518671

RoHS

Each
1+
RM68.660
14+
RM53.010
28+
RM50.490
112+
RM46.710
252+
RM45.090
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:DD:Hr:Min:Secs
12Hr / 24Hr
RTC
4.5V
5.5V
EDIP
24Pins
Multiplexed
0°C
70°C
-
-
2775937

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM2.430
50+
RM2.240
100+
RM2.040
500+
RM1.940
1000+
RM1.830
Min: 5 / Mult: 5
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
TSSOP
8Pins
I2C
-40°C
85°C
-
-
2400451

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM15.300
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1.8V
4.2V
SOIC
16Pins
I2C, SPI
-40°C
85°C
-
-
2515455

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM17.940
10+
RM13.580
25+
RM12.460
100+
RM10.140
250+
RM9.580
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
2400453

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM2.900
10+
RM2.700
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1V
5.5V
HVSON
10Pins
I2C
-40°C
85°C
-
-
2427483RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM2.130
500+
RM2.030
1000+
RM1.890
2500+
RM1.880
5000+
RM1.870
Min: 100 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
HWSON
8Pins
I2C
-40°C
85°C
-
-
2400451RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
1+
RM15.300
Min: 10 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1.8V
4.2V
SOIC
16Pins
I2C, SPI
-40°C
85°C
-
-
2983743

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM9.380
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.4V
3.6V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
3596303

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM22.970
10+
RM17.540
25+
RM16.160
100+
RM12.490
250+
RM11.890
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
3V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2400453RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
RM2.700
Min: 100 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1V
5.5V
HVSON
10Pins
I2C
-40°C
85°C
-
-
2515455RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM10.140
250+
RM9.580
500+
RM8.940
2500+
RM8.620
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
2775937RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM2.040
500+
RM1.940
1000+
RM1.830
Min: 100 / Mult: 5
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
TSSOP
8Pins
I2C
-40°C
85°C
-
-
2983743RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
1+
RM9.380
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.4V
3.6V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
3596303RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM12.490
250+
RM11.890
500+
RM11.510
1000+
RM11.210
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
3V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2775929

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM3.850
10+
RM2.490
100+
RM2.430
500+
RM2.370
1000+
RM2.310
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 24Hr
Calendar, Clock
1V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2543322

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM22.280
10+
RM18.330
25+
RM17.690
50+
RM17.050
100+
RM16.400
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.7V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
2806835

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM21.030
10+
RM16.290
25+
RM15.060
50+
RM14.410
100+
RM13.750
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
SOIC
18Pins
I2C
-40°C
85°C
-
-
2515400

RoHS

Each
1+
RM19.120
10+
RM16.230
50+
RM15.120
100+
RM14.030
250+
RM13.290
More Pricing...
Min: 1 / Mult: 1
Binary
Binary
RTC
2.97V
3.63V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2543322RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM16.400
250+
RM13.120
500+
RM12.850
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.7V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
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