Real Time Clocks:

559 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
2098890

RoHS

Each
1+
Rs.81.910
25+
Rs.71.670
100+
Rs.59.380
Min: 1 / Mult: 1
DD:MM:YYYY
HH:MM:SS
RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
AEC-Q100
2515487

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.925.680
10+
Rs.723.840
25+
Rs.673.380
100+
Rs.617.700
250+
Rs.591.600
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.3V
5.5V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
2518743

RoHS

Each
1+
Rs.401.940
10+
Rs.277.530
50+
Rs.245.340
100+
Rs.222.720
250+
Rs.212.280
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
ss:mm:hh
RTC
1.8V
5.5V
DIP
8Pins
I2C, Serial
-40°C
85°C
-
-
2515369

RoHS

Each
1+
Rs.500.250
10+
Rs.382.800
50+
Rs.335.820
100+
Rs.321.030
250+
Rs.305.370
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
-
-
2515431

RoHS

Each
1+
Rs.1,507.710
14+
Rs.1,470.300
28+
Rs.1,432.890
112+
Rs.1,331.970
252+
Rs.1,291.950
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
Alarm RTC
4.5V
5.5V
EDIP
24Pins
Multiplexed
0°C
70°C
-
-
2519296

RoHS

Each
1+
Rs.1,195.380
10+
Rs.876.090
36+
Rs.743.850
108+
Rs.720.360
252+
Rs.709.050
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
2V
5.5V
SOIC
20Pins
SPI
-40°C
85°C
-
-
2427483

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.80.570
10+
Rs.52.170
100+
Rs.42.890
500+
Rs.41.080
1000+
Rs.38.610
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
-
-
2515464

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.487.200
10+
Rs.372.360
25+
Rs.344.520
100+
Rs.312.330
250+
Rs.297.540
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.97V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2427480

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.457.620
10+
Rs.377.600
25+
Rs.343.650
50+
Rs.337.950
100+
Rs.332.240
More Pricing...
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
-
-
2515359

RoHS

Each
1+
Rs.441.090
10+
Rs.319.290
88+
Rs.303.870
176+
Rs.296.150
264+
Rs.288.430
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
WSOIC
8Pins
Serial
-40°C
85°C
-
-
2518948

RoHS

Each
1+
Rs.1,255.410
10+
Rs.890.010
46+
Rs.838.680
138+
Rs.826.500
276+
Rs.814.320
More Pricing...
Min: 1 / Mult: 1
DD:MM:YYYY
HH:MM:SS
RTC
2.3V
5.5V
WSOIC
16Pins
I2C
-40°C
85°C
-
-
2400452

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.114.730
10+
Rs.75.250
50+
Rs.74.270
100+
Rs.73.290
250+
Rs.72.310
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
-
-
2515439

RoHS

Each
1+
Rs.3,530.460
12+
Rs.3,115.470
36+
Rs.3,058.050
108+
Rs.2,975.400
252+
Rs.2,899.710
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
RTC
4.5V
5.5V
EDIP
28Pins
Parallel
0°C
70°C
-
-
2519295

RoHS

Each
1+
Rs.1,120.560
10+
Rs.776.040
46+
Rs.743.850
138+
Rs.732.980
276+
Rs.722.100
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
2.3V
5.5V
WSOIC
16Pins
I2C
0°C
70°C
-
-
2518671

RoHS

Each
1+
Rs.1,090.980
14+
Rs.1,064.010
28+
Rs.1,037.040
112+
Rs.959.610
252+
Rs.926.550
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
-
-
2515371

RoHS

Each
1+
Rs.518.520
10+
Rs.398.460
50+
Rs.348.870
100+
Rs.327.120
250+
Rs.301.890
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
4.5V
5.5V
DIP
8Pins
I2C
-40°C
85°C
-
-
2515425

RoHS

Each
1+
Rs.1,010.070
14+
Rs.997.460
28+
Rs.984.840
112+
Rs.929.160
252+
Rs.896.100
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
4.5V
5.5V
EDIP
24Pins
Multiplexed
0°C
70°C
-
-
2518949

RoHS

Each
1+
Rs.1,191.030
10+
Rs.904.800
36+
Rs.826.500
108+
Rs.763.860
252+
Rs.742.980
More Pricing...
Min: 1 / Mult: 1
DD:MM:YY
HH:MM:SS
RTC
2.3V
5.5V
SOIC
20Pins
I2C
-40°C
85°C
-
-
2798760

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.1,114.470
10+
Rs.874.350
25+
Rs.808.230
100+
Rs.742.980
250+
Rs.714.270
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.3V
5.5V
SOIC
16Pins
I2C
-40°C
85°C
-
-
2798723

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.404.550
10+
Rs.307.980
25+
Rs.283.620
100+
Rs.257.520
250+
Rs.244.470
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
4.5V
5.5V
SOIC
8Pins
I2C
0°C
70°C
-
-
2890042

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.66.560
10+
Rs.42.860
100+
Rs.42.170
500+
Rs.41.470
1000+
Rs.40.780
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 12Hr / 24Hr
Calendar, Clock
900mV
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2798724

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.439.350
10+
Rs.335.820
25+
Rs.306.240
100+
Rs.279.270
250+
Rs.261.870
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
4.5V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2775937

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.48.470
50+
Rs.44.740
100+
Rs.41.010
500+
Rs.39.330
1000+
Rs.37.460
Min: 5 / Mult: 5
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
TSSOP
8Pins
I2C
-40°C
85°C
-
-
2798763

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.1,029.210
10+
Rs.823.890
25+
Rs.737.760
100+
Rs.684.690
250+
Rs.665.550
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
SOIC
20Pins
SPI
-40°C
85°C
-
-
2798759

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.982.230
10+
Rs.769.950
25+
Rs.716.880
100+
Rs.657.720
250+
Rs.629.880
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.3V
5.5V
SOIC
16Pins
I2C
0°C
70°C
-
-
26-50 of 559 items
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