Day; Date; Month; Year; Century Real Time Clocks:

70 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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2806835

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY35.790
(CNY40.4427)
10+
CNY27.720
(CNY31.3236)
25+
CNY25.640
(CNY28.9732)
50+
CNY24.520
(CNY27.7076)
100+
CNY23.400
(CNY26.442)
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
3869497

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY22.560
(CNY25.4928)
10+
CNY16.980
(CNY19.1874)
25+
CNY15.510
(CNY17.5263)
50+
CNY15.350
(CNY17.3455)
100+
CNY15.170
(CNY17.1421)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS: 12Hr / 24Hr
Alarm RTC
3.3V
5.5V
TSSOP
8Pins
I2C
-40°C
85°C
3869497RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
1+
CNY22.560
(CNY25.4928)
10+
CNY16.980
(CNY19.1874)
25+
CNY15.510
(CNY17.5263)
50+
CNY15.350
(CNY17.3455)
100+
CNY15.170
(CNY17.1421)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS: 12Hr / 24Hr
Alarm RTC
3.3V
5.5V
TSSOP
8Pins
I2C
-40°C
85°C
2515431

RoHS

Each
1+
CNY126.860
(CNY143.3518)
14+
CNY123.720
(CNY139.8036)
28+
CNY120.570
(CNY136.2441)
112+
CNY112.070
(CNY126.6391)
252+
CNY108.710
(CNY122.8423)
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
2358522

RoHS

Each
1+
CNY39.910
(CNY45.0983)
10+
CNY31.080
(CNY35.1204)
25+
CNY28.470
(CNY32.1711)
50+
CNY27.100
(CNY30.623)
100+
CNY25.960
(CNY29.3348)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
12Hr / 24Hr
RTC
1V
4.4V
LCC
8Pins
I2C
-40°C
85°C
2806830

RoHS

Each
1+
CNY21.030
(CNY23.7639)
10+
CNY18.870
(CNY21.3231)
25+
CNY17.850
(CNY20.1705)
100+
CNY15.460
(CNY17.4698)
250+
CNY14.670
(CNY16.5771)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
2806827

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY18.980
(CNY21.4474)
10+
CNY13.220
(CNY14.9386)
50+
CNY12.630
(CNY14.2719)
100+
CNY12.030
(CNY13.5939)
250+
CNY11.360
(CNY12.8368)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
2806843

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY31.920
(CNY36.0696)
10+
CNY24.230
(CNY27.3799)
25+
CNY22.260
(CNY25.1538)
50+
CNY21.240
(CNY24.0012)
100+
CNY20.210
(CNY22.8373)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
SOIC
16Pins
SPI
-40°C
85°C
2806839

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY34.130
(CNY38.5669)
10+
CNY26.000
(CNY29.380)
25+
CNY23.980
(CNY27.0974)
50+
CNY22.830
(CNY25.7979)
100+
CNY21.680
(CNY24.4984)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
SOIC
18Pins
SPI
-40°C
85°C
3367096

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY20.380
(CNY23.0294)
10+
CNY15.270
(CNY17.2551)
25+
CNY13.970
(CNY15.7861)
50+
CNY13.250
(CNY14.9725)
100+
CNY12.530
(CNY14.1589)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
2358506

RoHS

Each
1+
CNY50.420
(CNY56.9746)
10+
CNY39.270
(CNY44.3751)
25+
CNY35.970
(CNY40.6461)
50+
CNY34.230
(CNY38.6799)
100+
CNY32.800
(CNY37.064)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
24Hr
RTC
1.1V
5.5V
SON
10Pins
SPI
-40°C
85°C
2806842

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY48.600
(CNY54.918)
10+
CNY37.440
(CNY42.3072)
25+
CNY34.640
(CNY39.1432)
50+
CNY33.130
(CNY37.4369)
100+
CNY31.610
(CNY35.7193)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
SOH
28Pins
SPI
-40°C
85°C
3129790

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY34.700
(CNY39.211)
10+
CNY26.430
(CNY29.8659)
25+
CNY24.380
(CNY27.5494)
50+
CNY23.210
(CNY26.2273)
100+
CNY22.040
(CNY24.9052)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
2.38V
5.5V
SOIC
18Pins
SPI
-40°C
85°C
3129609

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY166.900
(CNY188.597)
10+
CNY133.850
(CNY151.2505)
25+
CNY125.640
(CNY141.9732)
50+
CNY124.670
(CNY140.8771)
100+
CNY123.700
(CNY139.781)
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
3V
3.6V
SOIC
44Pins
Parallel
0°C
70°C
2849893

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY72.510
(CNY81.9363)
10+
CNY56.670
(CNY64.0371)
25+
CNY52.640
(CNY59.4832)
50+
CNY50.440
(CNY56.9972)
100+
CNY48.240
(CNY54.5112)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
Calendar, Clock
2.7V
3.6V
SOIC
28Pins
I2C, Serial
-40°C
85°C
2806840

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY26.870
(CNY30.3631)
10+
CNY20.280
(CNY22.9164)
25+
CNY18.600
(CNY21.018)
50+
CNY17.690
(CNY19.9897)
100+
CNY16.770
(CNY18.9501)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
QFN
16Pins
SPI
-40°C
85°C
2806833

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY22.240
(CNY25.1312)
10+
CNY15.360
(CNY17.3568)
25+
CNY14.850
(CNY16.7805)
50+
CNY14.340
(CNY16.2042)
100+
CNY13.820
(CNY15.6166)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
3V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
2806825

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY56.590
(CNY63.9467)
10+
CNY43.780
(CNY49.4714)
25+
CNY40.560
(CNY45.8328)
50+
CNY38.800
(CNY43.844)
100+
CNY37.040
(CNY41.8552)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
3.6V
SOIC
28Pins
I2C
-40°C
85°C
2467702

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
CNY27.140
(CNY30.6682)
50+
CNY13.530
(CNY15.2889)
250+
CNY12.870
(CNY14.5431)
500+
CNY12.210
(CNY13.7973)
1500+
CNY11.530
(CNY13.0289)
Min: 5 / Mult: 5
Day; Date; Month; Year; Century
HH:MM:SS:hh
RTC
1.5V
3.6V
QFN
16Pins
I2C
-40°C
85°C
2806826

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
CNY66.030
(CNY74.6139)
10+
CNY51.410
(CNY58.0933)
25+
CNY47.740
(CNY53.9462)
50+
CNY45.730
(CNY51.6749)
100+
CNY43.710
(CNY49.3923)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
3V
3.6V
SOIC
28Pins
I2C
-40°C
85°C
2467703

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
CNY28.320
(CNY32.0016)
50+
CNY15.730
(CNY17.7749)
250+
CNY14.550
(CNY16.4415)
500+
CNY13.360
(CNY15.0968)
1500+
CNY12.160
(CNY13.7408)
Min: 5 / Mult: 5
Day; Date; Month; Year; Century
HH:MM:SS:hh
RTC
1.5V
3.6V
QFN
16Pins
I2C
-40°C
85°C
2358523

RoHS

Each
1+
CNY54.210
(CNY61.2573)
10+
CNY42.220
(CNY47.7086)
25+
CNY38.680
(CNY43.7084)
50+
CNY36.810
(CNY41.5953)
100+
CNY35.270
(CNY39.8551)
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
24Hr
RTC
1.2V
5.5V
SON
10Pins
I2C
-40°C
85°C
2467703RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
CNY15.730
(CNY17.7749)
250+
CNY14.550
(CNY16.4415)
500+
CNY13.360
(CNY15.0968)
1500+
CNY12.160
(CNY13.7408)
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
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
2806832RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY13.740
(CNY15.5262)
250+
CNY13.010
(CNY14.7013)
500+
CNY12.960
(CNY14.6448)
1000+
CNY12.900
(CNY14.577)
Min: 100 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.7V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
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