Real Time Clocks:

244 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.
Show More
View
Buyer
Engineer
Manufacturer
Interfaces
Clock Format
Date Format
Clock IC Type
Time Format
Supply Voltage Min
Supply Voltage Max
Clock IC Case Style
IC Case / Package
IC Interface Type
No. of Pins
Product Range
Qualification
Operating Temperature Min
Operating Temperature Max
Automotive Qualification Standard
Packaging
No Filter(s) Applied
0 Filter(s) Selected
ComparePrice ForQuantity
2806826

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY72.260
(CNY81.6538)
10+
CNY56.270
(CNY63.5851)
25+
CNY52.320
(CNY59.1216)
50+
CNY51.240
(CNY57.9012)
100+
CNY50.150
(CNY56.6695)
More Pricing...
Total:CNY72.26
Min: 1 / Mult: 1
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
Alarm RTC
HH:MM:SS:hh
3V
3.6V
SOIC
SOIC
I2C
28Pins
-
-
-40°C
85°C
-
2427481RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY3.040
(CNY3.4352)
500+
CNY2.720
(CNY3.0736)
1000+
CNY2.620
(CNY2.9606)
2500+
CNY2.540
(CNY2.8702)
5000+
CNY2.450
(CNY2.7685)
Total:CNY304.00
Min: 100 / Mult: 1
I2C
Binary
YYYY:MM:WK:DD:Hr:Min:Secs
Calendar, Clock
Binary
900mV
5.5V
HXSON
HXSON
I2C
10Pins
-
-
-40°C
85°C
-
2467703

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
CNY27.650
(CNY31.2445)
50+
CNY16.830
(CNY19.0179)
100+
CNY14.630
(CNY16.5319)
500+
CNY12.040
(CNY13.6052)
1500+
CNY9.980
(CNY11.2774)
Total:CNY138.25
Min: 5 / Mult: 5
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
RTC
HH:MM:SS:hh
1.5V
3.6V
QFN
QFN
I2C
16Pins
-
-
-40°C
85°C
-
2849894

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY67.990
(CNY76.8287)
10+
CNY52.850
(CNY59.7205)
25+
CNY49.110
(CNY55.4943)
50+
CNY48.000
(CNY54.240)
100+
CNY46.880
(CNY52.9744)
More Pricing...
Total:CNY67.99
Min: 1 / Mult: 1
Serial
HH:MM:SS
Day; Date; Month; Year; Century
Calendar, Clock
HH:MM:SS
2V
5.5V
SOIC
SOIC
Serial
28Pins
-
-
-40°C
85°C
-
2361120

RoHS

Each
1+
CNY13.340
(CNY15.0742)
25+
CNY12.420
(CNY14.0346)
100+
CNY11.660
(CNY13.1758)
Total:CNY13.34
Min: 1 / Mult: 1
SPI
12Hr / 24Hr
YYYY:MM:WK:DD:Hr:Min:Secs
Alarm RTC
12Hr / 24Hr
1.8V
3.6V
SOIC
SOIC
SPI
14Pins
-
AEC-Q100
-40°C
85°C
AEC-Q100
2445809RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY25.670
(CNY29.0071)
250+
CNY25.210
(CNY28.4873)
500+
CNY24.750
(CNY27.9675)
Total:CNY2,567.00
Min: 100 / Mult: 1
I2C
-
-
Alarm RTC
-
2.5V
5.5V
-
-
I2C
10Pins
-
-
-40°C
85°C
-
2543322RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY22.850
(CNY25.8205)
250+
CNY20.420
(CNY23.0746)
500+
CNY20.320
(CNY22.9616)
1000+
CNY20.220
(CNY22.8486)
Total:CNY2,285.00
Min: 100 / Mult: 1
I2C
HH:MM:SS
Day; Date; Month; Year
RTC
HH:MM:SS
2.7V
5.5V
MSOP
MSOP
I2C
8Pins
-
-
-40°C
85°C
-
2467703RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY14.630
(CNY16.5319)
500+
CNY12.040
(CNY13.6052)
1500+
CNY9.980
(CNY11.2774)
Total:CNY1,463.00
Min: 100 / Mult: 1
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
RTC
HH:MM:SS:hh
1.5V
3.6V
QFN
QFN
I2C
16Pins
-
-
-40°C
85°C
-
2302153RL

RoHS

Each
Packaging Options
100+
CNY9.300
(CNY10.509)
250+
CNY9.030
(CNY10.2039)
500+
CNY8.760
(CNY9.8988)
1000+
CNY8.490
(CNY9.5937)
2500+
CNY8.350
(CNY9.4355)
Total:CNY930.00
Min: 100 / Mult: 1
I2C
-
-
RTC
-
1.7V
3.6V
QFN
QFN
I2C
16Pins
AB08XX
-
-40°C
85°C
-
2463679RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY13.680
(CNY15.4584)
500+
CNY13.150
(CNY14.8595)
1000+
CNY12.940
(CNY14.6222)
Total:CNY1,368.00
Min: 100 / Mult: 5
I2C
ss:mm:hh
DD:MM:YYYY
RTC
ss:mm:hh
4.5V
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2467702RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY10.190
(CNY11.5147)
500+
CNY9.710
(CNY10.9723)
1500+
CNY9.220
(CNY10.4186)
Total:CNY1,019.00
Min: 100 / Mult: 5
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
RTC
HH:MM:SS:hh
1.5V
3.6V
QFN
QFN
I2C
16Pins
-
-
-40°C
85°C
-
2478574RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY13.920
(CNY15.7296)
250+
CNY13.620
(CNY15.3906)
500+
CNY13.330
(CNY15.0629)
1000+
CNY13.280
(CNY15.0064)
Total:CNY1,392.00
Min: 100 / Mult: 1
I2C
-
-
RTC
-
1.25V
5V
-
-
I2C
10Pins
-
-
-40°C
85°C
-
2445807RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY17.290
(CNY19.5377)
250+
CNY16.980
(CNY19.1874)
500+
CNY16.670
(CNY18.8371)
1000+
CNY16.640
(CNY18.8032)
Total:CNY1,729.00
Min: 100 / Mult: 1
I2C
-
-
Alarm RTC
-
1.6V
5.5V
SOP
SOP
I2C
8Pins
-
-
-40°C
85°C
-
2463681RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY16.480
(CNY18.6224)
500+
CNY15.160
(CNY17.1308)
1000+
CNY14.680
(CNY16.5884)
Total:CNY1,648.00
Min: 100 / Mult: 5
I2C
ss:mm:hh
DD:MM:YYYY
RTC
ss:mm:hh
2.7V
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2543321RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
CNY64.880
(CNY73.3144)
25+
CNY60.390
(CNY68.2407)
50+
CNY58.790
(CNY66.4327)
100+
CNY57.180
(CNY64.6134)
250+
CNY56.040
(CNY63.3252)
Total:CNY648.80
Min: 10 / Mult: 1
I2C
HH:MM:SS
Day; Date; Month; Year
RTC
HH:MM:SS
2.7V
5.5V
DFN
DFN
I2C
20Pins
-
-
-40°C
85°C
-
2427485RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY6.880
(CNY7.7744)
250+
CNY6.490
(CNY7.3337)
500+
CNY6.280
(CNY7.0964)
1000+
CNY6.080
(CNY6.8704)
2500+
CNY5.980
(CNY6.7574)
Total:CNY688.00
Min: 100 / Mult: 1
I2C
Binary
YYYY:MM:WK:DD:Hr:Min:Secs
Calendar, Clock
Binary
1.2V
5.5V
TSSOP
TSSOP
I2C
14Pins
-
-
-40°C
85°C
-
2400449RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY23.970
(CNY27.0861)
250+
CNY22.850
(CNY25.8205)
500+
CNY22.110
(CNY24.9843)
1000+
CNY21.520
(CNY24.3176)
Total:CNY2,397.00
Min: 100 / Mult: 1
I2C, SPI
Binary
YYYY:MM:WK:DD:Hr:Min:Secs
Calendar, Clock
Binary
1.8V
4.2V
SOIC
SOIC
I2C, SPI
20Pins
-
-
-40°C
85°C
-
2806832

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
CNY28.720
(CNY32.4536)
10+
CNY21.710
(CNY24.5323)
25+
CNY19.960
(CNY22.5548)
50+
CNY19.010
(CNY21.4813)
100+
CNY18.060
(CNY20.4078)
More Pricing...
Total:CNY28.72
Min: 1 / Mult: 1
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
Alarm RTC
HH:MM:SS:hh
2.7V
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2841031RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY6.980
(CNY7.8874)
250+
CNY6.560
(CNY7.4128)
500+
CNY6.310
(CNY7.1303)
1000+
CNY5.150
(CNY5.8195)
2500+
CNY5.060
(CNY5.7178)
Total:CNY698.00
Min: 100 / Mult: 1
I2C
HH:MM:SS
DD:MM:YY
Alarm RTC
HH:MM:SS
1.8V
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2890042RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY3.220
(CNY3.6386)
500+
CNY3.200
(CNY3.616)
1000+
CNY3.170
(CNY3.5821)
2500+
CNY3.150
(CNY3.5595)
5000+
CNY3.120
(CNY3.5256)
Total:CNY322.00
Min: 100 / Mult: 1
I2C
HH:MM:SS: 12Hr / 24Hr
YY-MM-DD-DW
Calendar, Clock
HH:MM:SS: 12Hr / 24Hr
900mV
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2775931RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY19.100
(CNY21.583)
250+
CNY18.110
(CNY20.4643)
500+
CNY17.510
(CNY19.7863)
1000+
CNY17.020
(CNY19.2326)
Total:CNY1,910.00
Min: 100 / Mult: 1
I2C
Binary
YYYY:MM:WK:DD:Hr:Min:Secs
Calendar, Clock
Binary
2.5V
6V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2983742RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY18.960
(CNY21.4248)
250+
CNY17.980
(CNY20.3174)
500+
CNY17.450
(CNY19.7185)
1000+
CNY16.990
(CNY19.1987)
Total:CNY1,896.00
Min: 100 / Mult: 1
I2C
HH:MM:SS
Day; Date; Month; Year
Alarm RTC
HH:MM:SS
2.7V
5.5V
NSOIC
NSOIC
I2C
8Pins
-
-
-40°C
85°C
-
2775932RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY5.560
(CNY6.2828)
250+
CNY5.220
(CNY5.8986)
500+
CNY5.170
(CNY5.8421)
1000+
CNY5.120
(CNY5.7856)
2500+
CNY5.060
(CNY5.7178)
Total:CNY556.00
Min: 100 / Mult: 1
I2C
HH:MM:SS
Day; Date; Month; Year
Alarm RTC
HH:MM:SS
1V
5.5V
TSSOP
TSSOP
I2C
8Pins
-
-
-40°C
85°C
-
2775933RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
CNY5.480
(CNY6.1924)
500+
CNY4.920
(CNY5.5596)
1000+
CNY4.390
(CNY4.9607)
Total:CNY548.00
Min: 100 / Mult: 5
I2C
Binary
YYYY:MM:WK:DD:Hr:Min:Secs
Calendar, Clock
Binary
900mV
5.5V
SOIC
SOIC
I2C
8Pins
-
-
-40°C
85°C
-
2806825RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
CNY56.340
(CNY63.6642)
25+
CNY52.310
(CNY59.1103)
50+
CNY50.960
(CNY57.5848)
100+
CNY49.600
(CNY56.048)
250+
CNY48.240
(CNY54.5112)
Total:CNY563.40
Min: 10 / Mult: 1
I2C
HH:MM:SS:hh
Day; Date; Month; Year; Century
Alarm RTC
HH:MM:SS:hh
2.7V
3.6V
SOIC
SOIC
I2C
28Pins
-
-
-40°C
85°C
-
126-150 of 244 items
of 10 page(s)

Popular Suppliers

NXP
STMICROELECTRONICS
ROHM
ONSEMI
MICROCHIP
INFINEON
MAXIM
electronical-license
Trade Account