Real Time Clocks:

469 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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2515491

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY28.520
(CNY32.2276)
10+
CNY21.600
(CNY24.408)
25+
CNY19.880
(CNY22.4644)
100+
CNY17.930
(CNY20.2609)
250+
CNY17.000
(CNY19.210)
More Pricing...
Min: 1 / Mult: 1
Binary
Binary
RTC
2.5V
5.5V
TSOC
6Pins
Serial
-40°C
85°C
-
-
2515361

RoHS

Each
1+
CNY50.880
(CNY57.4944)
10+
CNY38.220
(CNY43.1886)
74+
CNY32.360
(CNY36.5668)
148+
CNY31.810
(CNY35.9453)
296+
CNY31.260
(CNY35.3238)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
3V
5.5V
TSSOP
20Pins
SPI
-40°C
85°C
-
-
2302153RL

RoHS

Each
Packaging Options
50+
CNY10.250
(CNY11.5825)
250+
CNY8.670
(CNY9.7971)
Min: 100 / Mult: 1
-
-
RTC
1.7V
3.6V
QFN
16Pins
I2C
-40°C
85°C
AB08XX
-
2515472RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY22.300
(CNY25.199)
Min: 100 / Mult: 1
Binary
Binary
Binary Counter
2.97V
5.5V
µSOP
10Pins
I2C
-40°C
85°C
-
-
2515465RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY23.840
(CNY26.9392)
250+
CNY22.040
(CNY24.9052)
500+
CNY20.960
(CNY23.6848)
1000+
CNY20.670
(CNY23.3571)
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.97V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2515449RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY21.600
(CNY24.408)
250+
CNY20.490
(CNY23.1537)
2000+
CNY19.380
(CNY21.8994)
4000+
CNY18.520
(CNY20.9276)
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
WSOIC
8Pins
Serial
0°C
70°C
-
-
2515352

RoHS

Each
1+
CNY53.810
(CNY60.8053)
10+
CNY38.510
(CNY43.5163)
25+
CNY35.140
(CNY39.7082)
100+
CNY31.770
(CNY35.9001)
300+
CNY31.260
(CNY35.3238)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
RTC
2.7V
3.3V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
2445809RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY24.140
(CNY27.2782)
250+
CNY23.500
(CNY26.555)
Min: 100 / Mult: 1
-
-
Alarm RTC
2.5V
5.5V
-
10Pins
I2C
-40°C
85°C
-
-
2345962

RoHS

Each
1+
CNY11.060
(CNY12.4978)
25+
CNY10.650
(CNY12.0345)
100+
CNY10.240
(CNY11.5712)
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
1.8V
3.6V
MSOP
10Pins
SPI
-40°C
85°C
AEC-Q100
AEC-Q100
2345963

RoHS

Each
1+
CNY9.920
(CNY11.2096)
25+
CNY9.780
(CNY11.0514)
100+
CNY9.620
(CNY10.8706)
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
1.8V
3.6V
MSOP
10Pins
SPI
-40°C
85°C
AEC-Q100
AEC-Q100
2518742

RoHS

Each
1+
CNY65.590
(CNY74.1167)
10+
CNY47.800
(CNY54.014)
74+
CNY41.580
(CNY46.9854)
148+
CNY41.030
(CNY46.3639)
296+
CNY40.480
(CNY45.7424)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2V
5.5V
TSSOP
20Pins
3 Wire, Serial, SPI
-40°C
85°C
-
-
2515386

RoHS

Each
1+
CNY35.430
(CNY40.0359)
10+
CNY25.710
(CNY29.0523)
50+
CNY23.260
(CNY26.2838)
100+
CNY21.390
(CNY24.1707)
250+
CNY19.590
(CNY22.1367)
More Pricing...
Min: 1 / Mult: 1
Binary
Binary
Binary Counter
1.7V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2467702RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
CNY13.530
(CNY15.2889)
250+
CNY12.870
(CNY14.5431)
500+
CNY12.210
(CNY13.7973)
1500+
CNY11.530
(CNY13.0289)
Min: 100 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
RTC
1.5V
3.6V
QFN
16Pins
I2C
-40°C
85°C
-
-
2463679RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY13.670
(CNY15.4471)
500+
CNY13.550
(CNY15.3115)
1000+
CNY13.420
(CNY15.1646)
Min: 100 / Mult: 5
DD:MM:YYYY
ss:mm:hh
RTC
4.5V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2478574RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY13.200
(CNY14.916)
250+
CNY12.850
(CNY14.5205)
Min: 100 / Mult: 1
-
-
RTC
1.25V
5V
-
10Pins
I2C
-40°C
85°C
-
-
2515390

RoHS

Each
1+
CNY43.560
(CNY49.2228)
10+
CNY33.410
(CNY37.7533)
50+
CNY29.020
(CNY32.7926)
100+
CNY27.150
(CNY30.6795)
250+
CNY25.060
(CNY28.3178)
More Pricing...
Min: 1 / Mult: 1
Binary
Binary
Binary Counter
2.97V
5.5V
µSOP
10Pins
I2C
-40°C
85°C
-
-
2361123RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY9.350
(CNY10.5655)
3300+
CNY8.380
(CNY9.4694)
Min: 100 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
TDFN
8Pins
I2C
-40°C
85°C
-
AEC-Q100
2515456RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY21.530
(CNY24.3289)
250+
CNY20.450
(CNY23.1085)
500+
CNY15.410
(CNY17.4133)
3000+
CNY14.690
(CNY16.5997)
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2515385

RoHS

Each
1+
CNY31.900
(CNY36.047)
10+
CNY24.270
(CNY27.4251)
50+
CNY21.100
(CNY23.843)
100+
CNY19.950
(CNY22.5435)
250+
CNY18.870
(CNY21.3231)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
2841031RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY6.870
(CNY7.7631)
250+
CNY6.450
(CNY7.2885)
500+
CNY6.220
(CNY7.0286)
1000+
CNY5.990
(CNY6.7687)
2500+
CNY5.980
(CNY6.7574)
Min: 100 / Mult: 1
DD:MM:YY
HH:MM:SS
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2890041RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY6.540
(CNY7.3902)
250+
CNY6.150
(CNY6.9495)
500+
CNY6.080
(CNY6.8704)
1000+
CNY6.020
(CNY6.8026)
2500+
CNY5.960
(CNY6.7348)
Min: 100 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.8V
5.5V
TSSOP
8Pins
I2C
-40°C
105°C
-
AEC-Q100
2890042RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY3.640
(CNY4.1132)
500+
CNY3.540
(CNY4.0002)
1000+
CNY3.440
(CNY3.8872)
2500+
CNY3.340
(CNY3.7742)
5000+
CNY3.240
(CNY3.6612)
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 12Hr / 24Hr
Calendar, Clock
900mV
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2909725

RoHS

Each
1+
CNY319.540
(CNY361.0802)
10+
CNY253.160
(CNY286.0708)
40+
CNY235.800
(CNY266.454)
120+
CNY227.520
(CNY257.0976)
280+
CNY218.640
(CNY247.0632)
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
4.5V
5.5V
PowerCap Module
34Pins
Parallel
0°C
70°C
-
-
2830851RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
CNY64.950
(CNY73.3935)
25+
CNY58.760
(CNY66.3988)
100+
CNY51.840
(CNY58.5792)
250+
CNY49.830
(CNY56.3079)
500+
CNY49.180
(CNY55.5734)
More Pricing...
Min: 10 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.3V
5.5V
SOIC
20Pins
I2C
0°C
70°C
-
-
2901506RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY5.600
(CNY6.328)
3300+
CNY5.020
(CNY5.6726)
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
276-300 of 469 items
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