Real Time Clocks:

896 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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2775929

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$0.989
10+
US$0.709
50+
US$0.638
100+
US$0.561
250+
US$0.525
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 24Hr
Calendar, Clock
1V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2775929RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$0.561
250+
US$0.525
500+
US$0.503
1000+
US$0.485
2500+
US$0.456
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 24Hr
Calendar, Clock
1V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2798762

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$12.730
10+
US$9.916
25+
US$8.965
100+
US$7.517
250+
US$7.223
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
SOIC
20Pins
SPI
0°C
70°C
-
-
3253614

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$2.814
10+
US$2.626
25+
US$2.238
50+
US$2.050
100+
US$1.876
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.5V
5.5V
-
10Pins
I2C
-40°C
105°C
-
-
2515397

RoHS

Each
1+
US$6.566
10+
US$5.038
50+
US$4.382
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
Alarm RTC
2.97V
5.5V
µSOP
10Pins
SPI
-40°C
85°C
-
-
3592268

RoHS

Each (Supplied on Full Reel)
Full Reel
2500+
US$1.144
Min: 2500 / Mult: 2500
YY-MM-DD-dd
HH:MM:SS:hh
RTCC
1.8V
3.6V
MSOP
10Pins
SPI
-40°C
85°C
-
-
2515400

RoHS

Each
1+
US$5.494
10+
US$4.194
50+
US$3.658
Min: 1 / Mult: 1
Binary
Binary
RTC
2.97V
3.63V
µSOP
8Pins
I2C
-40°C
85°C
-
-
3253614RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$1.876
250+
US$1.715
Min: 100 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.5V
5.5V
-
10Pins
I2C
-40°C
105°C
-
-
2798762RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
US$9.916
25+
US$8.965
100+
US$7.517
250+
US$7.223
500+
US$7.129
Min: 10 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
SOIC
20Pins
SPI
0°C
70°C
-
-
4071659RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$2.707
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS
Alarm RTC
1.6V
5.5V
Module
10Pins
I2C
-40°C
105°C
-
-
4071655RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$3.270
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS
Alarm RTC
1.6V
5.5V
Module
10Pins
I2C
-40°C
105°C
-
-
4071659

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$4.368
10+
US$4.060
25+
US$3.471
50+
US$2.935
100+
US$2.707
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS
Alarm RTC
1.6V
5.5V
Module
10Pins
I2C
-40°C
105°C
-
-
4071655

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
US$5.976
10+
US$5.293
25+
US$4.368
50+
US$3.712
100+
US$3.270
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS
Alarm RTC
1.6V
5.5V
Module
10Pins
I2C
-40°C
105°C
-
-
4153554

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$3.270
10+
US$2.452
25+
US$2.251
100+
US$1.863
250+
US$1.755
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
1.1V
5.5V
WLCSP
12Pins
I2C
-40°C
85°C
-
-
4153554RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$1.863
250+
US$1.755
500+
US$1.648
Min: 100 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
1.1V
5.5V
WLCSP
12Pins
I2C
-40°C
85°C
-
-
3783068

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$2.023
10+
US$1.889
25+
US$1.621
50+
US$1.474
100+
US$1.353
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.6V
5.5V
-
10Pins
I2C
-40°C
85°C
-
-
3783068RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
US$1.353
Min: 500 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.6V
5.5V
-
10Pins
I2C
-40°C
85°C
-
-
9756388

RoHS

Each
Hazardous Item: There maybe additional transit time on this item. Delivery of other items on your order will be unaffected.
1+
US$28.756
10+
US$22.499
25+
US$21.494
50+
US$20.368
100+
US$19.229
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Timekeeper
4.75V
5.5V
DIP
24Pins
Parallel
0°C
70°C
-
-
9756574

RoHS

Date/Lot Code

Each
Hazardous Item: There maybe additional transit time on this item. Delivery of other items on your order will be unaffected.
1+
US$34.947
5+
US$32.240
10+
US$29.534
25+
US$28.207
50+
US$27.644
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Timekeeper
4.5V
5.5V
DIP
28Pins
Parallel
0°C
70°C
-
-
9756396

RoHS

Date/Lot Code

Each
Hazardous Item: There maybe additional transit time on this item. Delivery of other items on your order will be unaffected.
1+
US$28.636
5+
US$25.688
10+
US$22.726
25+
US$21.172
50+
US$20.743
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Timekeeper
4.75V
5.5V
DIP
28Pins
Parallel
0°C
70°C
-
-
2098894

RoHS

Date/Lot Code

Each
1+
US$0.813
25+
US$0.748
100+
US$0.738
250+
US$0.728
Min: 1 / Mult: 1
DD:MM:YYYY
HH:MM:SS
RTC
1.8V
5.5V
DIP
8Pins
I2C
-40°C
85°C
-
AEC-Q100
1278031

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
US$9.407
10+
US$6.620
25+
US$6.271
50+
US$5.950
100+
US$5.387
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:DD:Hr:Min:Secs
12Hr / 24Hr
RTC
1.8V
5.5V
VSOJ
12Pins
I2C
-40°C
85°C
-
-
9756558

RoHS

Date/Lot Code

Each
Hazardous Item: There maybe additional transit time on this item. Delivery of other items on your order will be unaffected.
1+
US$23.691
5+
US$21.266
10+
US$18.840
25+
US$17.956
50+
US$17.809
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Timekeeper
4.5V
5.5V
DIP
28Pins
Parallel
0°C
70°C
-
-
1467734

RoHS

Each
Hazardous Item: There maybe additional transit time on this item. Delivery of other items on your order will be unaffected.
1+
US$32.187
5+
US$29.882
10+
US$27.577
25+
US$26.076
50+
US$25.554
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Timekeeper
4.5V
5.5V
DIP
28Pins
Parallel
0°C
70°C
-
-
2361125

RoHS

Date/Lot Code

Each
1+
US$1.528
25+
US$1.407
100+
US$1.340
250+
US$1.313
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
3.6V
MSOP
10Pins
SPI
-40°C
85°C
-
AEC-Q100
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