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Real Time Clocks: 787 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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2361123

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
kr18.150
25+
kr15.880
100+
kr13.160
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
TDFN
8Pins
I2C
-40°C
85°C
-
AEC-Q100
2515444

RoHS

Date/Lot Code

Each
1+
kr465.000
10+
kr431.280
30+
kr415.920
100+
kr381.980
Day; Date; Month; Year
HH:MM:SS:hh
RTC
4.5V
5.5V
EDIP
32Pins
Bytewide
0°C
70°C
-
-
1539389

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
kr75.860
10+
kr66.510
25+
kr63.160
50+
kr58.200
100+
kr55.190
More Pricing...
DD:MM:YYYY
HH:MM:SS
RTC
1.2V
5.5V
SON
10Pins
I2C
-40°C
85°C
-
-
2519293

RoHS

Date/Lot Code

Each
1+
kr56.460
10+
kr41.920
88+
kr41.570
176+
kr40.530
264+
kr39.490
More Pricing...
YY-MM-DD
HH:MM:SS
RTC
2V
5.5V
SOIC
8Pins
3 Wire, Serial
0°C
70°C
-
-
2518743

RoHS

Date/Lot Code

Each
1+
kr44.800
10+
kr37.300
50+
kr35.220
100+
kr33.020
250+
kr31.290
More Pricing...
Day; Date; Month; Year
ss:mm:hh
RTC
1.8V
5.5V
DIP
8Pins
I2C, Serial
-40°C
85°C
-
-
2849896

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
kr172.810
10+
kr155.950
25+
kr149.450
50+
kr140.570
100+
kr131.680
YY-MM-DD-dd
HH:MM:SS
Calendar, Clock
4.5V
5.5V
SOIC
28Pins
Parallel
0°C
70°C
Multicomp Pro RJ45 Adapter
-
2806830

RoHS

Date/Lot Code

Each
1+
kr19.980
10+
kr16.630
25+
kr16.280
50+
kr15.700
100+
kr15.010
More Pricing...
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
2515359

RoHS

Date/Lot Code

Each
1+
kr59.120
10+
kr48.380
88+
kr41.220
176+
kr39.140
264+
kr37.070
More Pricing...
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
WSOIC
8Pins
Serial
-40°C
85°C
Multicomp Pro RJ45 Adapter
-
3677599

RoHS

Date/Lot Code

Each
1+
kr51.040
10+
kr45.500
25+
kr43.420
100+
kr37.640
490+
kr31.990
More Pricing...
Day; Date; Month; Year
12Hr / 24Hr
Alarm RTC
2.3V
5.5V
LGA
10Pins
I2C
-40°C
85°C
-
-
2098889

RoHS

Date/Lot Code

Each
1+
kr7.520
25+
kr6.990
100+
kr6.760
-
-
-
1.8V
5.5V
-
8Pins
-
-40°C
85°C
-
-
2358520

RoHS

Each
1+
kr105.310
10+
kr92.260
25+
kr87.640
50+
kr80.830
100+
kr76.560
More Pricing...
YYYY:MM:DD:Hr:Min:Secs
24Hr
RTC
1.3V
5.5V
SON
10Pins
SPI
-40°C
125°C
-
-
2515353

RoHS

Date/Lot Code

Each
1+
kr70.440
10+
kr63.740
25+
kr60.740
100+
kr52.770
300+
kr50.340
More Pricing...
Day; Date; Month; Year
HH:MM:SS:hh
RTC
2.97V
3.63V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
3129609

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
kr254.830
10+
kr235.150
25+
kr224.590
50+
kr212.740
100+
kr200.760
Day; Date; Month; Year; Century
HH:MM:SS
RTC
3V
3.6V
SOIC
44Pins
Parallel
0°C
70°C
-
-
2492605

RoHS

Each
1+
kr182.560
10+
kr168.360
25+
kr160.850
50+
kr152.420
100+
kr143.880
BCD
12Hr / 24Hr
RTC
4.5V
5.5V
LCC
28Pins
Parallel
-40°C
85°C
Multicomp Pro RJ45 Adapter
-
2515397

RoHS

Each
1+
kr35.450
10+
kr31.870
50+
kr30.020
100+
kr26.100
Day; Date; Month; Year
HH:MM:SS:hh
Alarm RTC
2.97V
5.5V
µSOP
10Pins
SPI
-40°C
85°C
-
-
2361123RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
kr13.160
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
TDFN
8Pins
I2C
-40°C
85°C
-
AEC-Q100
2851655

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
kr9.850
YY-MM-DD-dd
HH:MM:SS
RTCC
1.8V
5.5V
TDFN
8Pins
I2C
-40°C
85°C
-
-
2361120

RoHS

Date/Lot Code

Each
1+
kr18.490
25+
kr17.240
100+
kr17.130
-
-
-
1.8V
3.6V
-
14Pins
-
-40°C
85°C
-
-
2515382

RoHS

Each
1+
kr48.270
10+
kr43.190
50+
kr40.880
100+
kr35.450
250+
kr33.600
More Pricing...
Day; Date; Month; Year
HH:MM:SS
RTC
2.97V
5.5V
µSOP
-
I2C
-40°C
85°C
-
-
2515438

RoHS

Each
1+
kr291.560
14+
kr268.930
28+
kr256.810
112+
kr229.670
252+
kr219.050
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
4.5V
5.5V
EDIP
24Pins
Multiplexed
0°C
70°C
Multicomp Pro RJ45 Adapter
-
2358514

RoHS

Each
1+
kr109.110
10+
kr95.160
25+
kr90.740
50+
kr84.160
100+
kr79.730
More Pricing...
YYYY:MM:DD:Hr:Min:Secs
24Hr
RTC
1.3V
5.5V
SON
10Pins
SPI
-40°C
85°C
-
-
2849896RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
kr155.950
25+
kr149.450
50+
kr140.570
100+
kr131.680
YY-MM-DD-dd
HH:MM:SS
Calendar, Clock
4.5V
5.5V
SOIC
28Pins
Parallel
0°C
70°C
Multicomp Pro RJ45 Adapter
-
2515498

RoHS

Each
1+
kr346.290
10+
kr324.700
40+
kr290.870
120+
kr277.130
280+
kr272.280
Day; Date; Month; Year; Century
HH:MM:SS
RTC
2.97V
3.63V
PWRCP
34Pins
Bytewide
-40°C
85°C
-
-
2515400

RoHS

Each
1+
kr29.440
10+
kr25.170
50+
kr25.060
Binary
Binary
RTC
2.97V
3.63V
µSOP
8Pins
I2C
-40°C
85°C
-
-
1539389RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
kr55.190
250+
kr50.920
500+
kr45.150
DD:MM:YYYY
HH:MM:SS
RTC
1.2V
5.5V
SON
10Pins
I2C
-40°C
85°C
-
-
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