Real Time Clocks:

419 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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61AC1302

RoHS

Each (Supplied on Cut Tape)
1+
$0.697
10+
$0.697
25+
$0.697
Min: 1 / Mult: 1
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 12Hr / 24Hr
Calendar, Clock
900mV
5.5V
DFN2626
10Pins
I2C
-40°C
85°C
-
-
03AJ2372

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$4.520
10+
$3.410
25+
$3.120
50+
$2.960
100+
$2.810
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
DD:MM:YYYY
ss:mm:hh
RTC
2V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
26M2718

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$13.490
10+
$12.890
25+
$12.100
50+
$11.490
100+
$10.300
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
-
-
87X6754

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$10.860
10+
$10.210
25+
$9.600
50+
$8.800
100+
$7.950
More Pricing...
Min: 1 / Mult: 1
-
-
Alarm RTC
2.5V
5.5V
-
10Pins
I2C
-40°C
85°C
-
-
73Y1256

RoHS

Date/Lot Code

Each
1+
$10.220
10+
$7.320
25+
$7.090
50+
$6.880
100+
$6.660
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
RTC
2.97V
3.63V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
45AC7415

RoHS

Date/Lot Code

STMICROELECTRONICS
Each (Supplied on Cut Tape)
1+
$18.170
10+
$14.900
25+
$14.080
50+
$13.640
100+
$13.180
More Pricing...
Min: 1 / Mult: 1
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
-
-
82Y6685

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$6.650
10+
$5.150
25+
$4.600
50+
$4.400
100+
$4.170
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.7V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
73Y1261

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$6.950
10+
$5.360
25+
$4.900
50+
$4.720
100+
$4.520
More Pricing...
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
-
-
84AC6858

RoHS

Each (Supplied on Cut Tape)
1+
$3.800
10+
$2.830
25+
$2.590
50+
$2.450
100+
$2.330
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.4V
3.6V
MSOP
8Pins
I2C
-40°C
85°C
-
-
48AC1643

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$16.110
10+
$12.640
25+
$11.780
50+
$11.300
100+
$10.820
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.3V
5.5V
SOIC
20Pins
I2C
0°C
70°C
-
-
94AC1341

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$8.440
10+
$6.480
25+
$5.990
50+
$5.770
100+
$5.550
More Pricing...
Min: 1 / Mult: 1
-
-
Elapsed Time Recorder
2.5V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
78Y4774

RoHS

Each
1+
$5.250
10+
$4.850
25+
$4.850
50+
$4.850
100+
$4.850
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Timekeeper
2V
5.5V
SOIC
8Pins
3 Wire, Serial
0°C
70°C
-
-
81Y9050

RoHS

Date/Lot Code

Each
1+
$7.010
10+
$5.360
25+
$5.020
50+
$4.700
100+
$4.490
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Timekeeper
2V
5.5V
DIP
8Pins
3 Wire, Serial
0°C
70°C
-
-
81Y9052

RoHS

Date/Lot Code

Each
1+
$13.150
10+
$10.250
25+
$9.530
50+
$9.120
100+
$8.720
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
12Hr / 24Hr
RTC
2V
5.5V
DIP
16Pins
3 Wire, Serial
0°C
70°C
-
-
39AH9418

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$10.040
10+
$9.600
25+
$9.000
50+
$8.540
100+
$7.660
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.5V
5.5V
-
10Pins
I2C
-40°C
105°C
-
-
49AH9240

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$5.380
10+
$4.080
25+
$3.740
50+
$3.560
100+
$3.380
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTCC
2.7V
5.5V
MSOP
10Pins
I2C
-40°C
85°C
-
-
03AJ2373

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$4.560
10+
$3.420
25+
$3.150
50+
$2.990
100+
$2.830
More Pricing...
Min: 1 / Mult: 1
DD:MM:YYYY
ss:mm:hh
RTC
4.5V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
68AH9621

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$12.640
10+
$9.830
25+
$9.120
50+
$8.750
100+
$8.360
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTCC
2.97V
5.5V
WSOIC
16Pins
I2C
-40°C
85°C
-
-
31AJ5620

RoHS

Date/Lot Code

Each
1+
$6.870
10+
$5.230
25+
$4.830
50+
$4.600
100+
$4.370
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
12Hr / 24Hr
RTC
2.3V
5.5V
LGA
10Pins
I2C, Serial
-40°C
85°C
-
-
24M1001

RoHS

Date/Lot Code

Each
1+
$31.380
5+
$27.290
10+
$23.190
25+
$21.790
50+
$21.770
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
3V
6V
SOIC
16Pins
SPI
-40°C
85°C
-
-
99AJ4767

RoHS

Each (Supplied on Cut Tape)
1+
$3.010
10+
$2.780
25+
$2.780
50+
$2.580
Min: 1 / Mult: 1
Min: 100 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 12Hr / 24Hr
Calendar, Clock
1.2V
5.5V
HLSON
16Pins
I2C, SPI
-40°C
85°C
-
AEC-Q100
48Y4769

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$5.940
10+
$5.580
25+
$5.240
50+
$4.810
100+
$4.340
More Pricing...
Min: 1 / Mult: 1
-
-
RTC
1.25V
5V
-
10Pins
I2C
-40°C
85°C
-
-
84AC6857

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$3.800
10+
$2.840
25+
$2.590
50+
$2.460
100+
$2.330
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.4V
3.6V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
73Y1202

RoHS

Date/Lot Code

Each
1+
$14.880
10+
$11.620
25+
$10.820
50+
$10.370
100+
$9.930
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2V
5.5V
DIP
16Pins
SPI
-40°C
85°C
-
-
75Y6246

RoHS

Date/Lot Code

Each
1+
$6.440
10+
$4.900
25+
$4.590
50+
$4.270
100+
$4.090
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
ss:mm:hh
RTC
1.8V
5.5V
DIP
8Pins
I2C, Serial
-40°C
85°C
-
-
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