Real Time Clocks:

548 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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Automotive Qualification Standard
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ComparePrice ForQuantity
2098890

RoHS

Each
1+
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
2400452RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.72.440
250+
Rs.71.330
500+
Rs.70.210
1000+
Rs.69.100
2500+
Rs.67.980
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
-
-
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.467.190
10+
Rs.383.670
50+
Rs.335.820
100+
Rs.319.290
250+
Rs.298.410
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
Packaging Options
1+
Rs.79.950
10+
Rs.51.040
100+
Rs.42.560
500+
Rs.40.760
1000+
Rs.39.300
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
Packaging Options
1+
Rs.487.200
10+
Rs.373.230
25+
Rs.344.520
100+
Rs.310.590
250+
Rs.293.190
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
Packaging Options
1+
Rs.443.700
10+
Rs.374.670
25+
Rs.341.910
50+
Rs.328.180
100+
Rs.320.820
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
-
-
2515439

RoHS

Each
1+
Rs.3,413.010
12+
Rs.3,178.980
36+
Rs.3,119.820
108+
Rs.3,053.700
252+
Rs.2,958.870
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
RTC
4.5V
5.5V
EDIP
28Pins
Parallel
0°C
70°C
-
-
2518948

RoHS

Each
1+
Rs.1,255.410
10+
Rs.970.920
46+
Rs.795.180
138+
Rs.786.050
276+
Rs.776.910
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
Packaging Options
1+
Rs.113.840
10+
Rs.74.670
50+
Rs.73.560
100+
Rs.72.440
250+
Rs.71.330
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
-
-
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
-
-
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
-
-
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
-
-
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
-
-
2518949

RoHS

Each
1+
Rs.1,191.030
10+
Rs.876.960
36+
Rs.804.750
108+
Rs.733.410
252+
Rs.719.490
More Pricing...
Min: 1 / Mult: 1
DD:MM:YY
HH:MM:SS
RTC
2.3V
5.5V
SOIC
20Pins
I2C
-40°C
85°C
-
-
2798723

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
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
-
-
2775930

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
Rs.123.390
10+
Rs.81.630
50+
Rs.77.010
100+
Rs.72.390
250+
Rs.68.000
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
1.1V
5.5V
TSSOP
14Pins
SPI
-40°C
85°C
-
-
2798760

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
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
-
-
2890042

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
Rs.67.780
10+
Rs.43.280
100+
Rs.42.340
500+
Rs.41.400
1000+
Rs.40.460
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
Packaging Options
1+
Rs.445.440
10+
Rs.340.170
25+
Rs.313.200
100+
Rs.279.270
250+
Rs.257.520
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
Packaging Options
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
Packaging Options
1+
Rs.997.020
10+
Rs.816.060
25+
Rs.732.540
100+
Rs.677.730
250+
Rs.651.630
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
SOIC
20Pins
SPI
-40°C
85°C
-
-
26-50 of 548 items
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