Real Time Clocks:

343 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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31AC6852

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.170
10+
$0.841
25+
$0.760
50+
$0.716
Min: 5 / Mult: 5
YYYY:MM:WK:DD:Hr:Min:Secs
Binary
Calendar, Clock
900mV
5.5V
DFN2626
10Pins
I2C
-40°C
85°C
-
-
68AH9617

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$7.820
10+
$6.050
25+
$5.590
50+
$5.230
100+
$4.870
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTCC
1.8V
5.5V
WSOIC
16Pins
I2C
-40°C
85°C
-
-
07AH6824

RoHS

Date/Lot Code

STMICROELECTRONICS
Each (Supplied on Cut Tape)
Cut Tape
1+
$5.030
10+
$3.830
25+
$3.520
50+
$3.350
100+
$3.190
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
-
-
85AJ6767

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.260
10+
$2.440
25+
$2.240
50+
$2.120
100+
$2.020
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
-
-
85AJ2992

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$5.100
10+
$3.320
25+
$2.870
50+
$2.600
100+
$2.340
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.7V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
26AJ5261

RoHS

Date/Lot Code

TEXAS INSTRUMENTS
Each
1+
$2.250
10+
$2.090
25+
$1.950
50+
$1.860
150+
$1.750
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
3V
3.6V
SOIC
8Pins
I2C
-40°C
85°C
-
-
99AJ4766

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.900
10+
$2.940
25+
$2.710
50+
$2.570
Min: 1 / Mult: 1
YY-MM-DD-DW
HH:MM:SS: 12Hr / 24Hr
Calendar, Clock
1.2V
5.5V
HLSON
16Pins
I2C, SPI
-40°C
105°C
-
AEC-Q100
87X6753

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$5.800
10+
$5.450
25+
$5.120
50+
$4.700
100+
$4.240
More Pricing...
Min: 1 / Mult: 1
-
-
Alarm RTC
1.6V
5.5V
SOP
8Pins
I2C
-40°C
85°C
-
-
81Y9051

RoHS

Date/Lot Code

Each
1+
$5.630
10+
$4.410
25+
$4.160
50+
$3.920
176+
$3.660
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
2V
5.5V
SOIC
8Pins
3 Wire, Serial
0°C
70°C
-
-
73Y1228

RoHS

Date/Lot Code

Each
1+
$6.750
10+
$4.820
25+
$4.410
50+
$4.000
100+
$3.900
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
1.71V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
45AC7410

RoHS

Date/Lot Code

Each
1+
$3.510
10+
$3.110
25+
$3.000
50+
$2.950
100+
$2.900
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
2.38V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
45AC7411

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$6.830
10+
$5.640
25+
$5.340
50+
$5.180
100+
$5.010
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
-
-
73Y1196

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$5.120
10+
$3.810
25+
$3.490
50+
$3.340
100+
$3.180
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2V
5.5V
WSOIC
8Pins
Serial
0°C
70°C
-
-
78Y4780

RoHS

Date/Lot Code

Each
1+
$6.350
10+
$4.870
25+
$4.500
50+
$4.300
100+
$4.100
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
ss:mm:hh
RTC
2.97V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
51AC9311

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$12.140
10+
$12.130
25+
$12.130
50+
$11.270
100+
$10.520
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
Calendar, Clock
4.5V
5.5V
SOIC
28Pins
Parallel
0°C
70°C
-
-
73Y1381

RoHS

Date/Lot Code

Each
1+
$63.830
5+
$58.310
10+
$52.790
30+
$51.810
50+
$51.790
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
2.97V
3.63V
EDIP
32Pins
Bytewide
-40°C
85°C
-
-
12X8723

RoHS

Each
1+
$1.460
10+
$1.460
25+
$1.460
50+
$1.460
114+
$1.460
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
3.6V
SOIC
14Pins
SPI
-40°C
85°C
-
AEC-Q100
73Y1379

RoHS

Date/Lot Code

Each
1+
$63.050
5+
$55.160
10+
$47.250
30+
$47.200
50+
$47.180
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
4.5V
5.5V
EDIP
32Pins
Bytewide
0°C
70°C
-
-
78Y4778

RoHS

Date/Lot Code

Each
1+
$4.800
10+
$3.350
25+
$3.240
50+
$3.120
100+
$3.000
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
ss:mm:hh
RTC
1.8V
5.5V
SOIC
8Pins
I2C, Serial
-40°C
85°C
-
-
73Y1239

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$4.160
10+
$3.140
25+
$2.890
50+
$2.750
100+
$2.610
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
68AH9619

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$6.140
10+
$4.700
25+
$4.240
50+
$4.000
100+
$3.750
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
1.71V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
99AC9306

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.800
10+
$1.520
30+
$1.420
50+
$1.330
100+
$1.230
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
1.6V
3.6V
WLP
8Pins
I2C
-40°C
85°C
-
-
09X0511

RoHS

Each
1+
$5.280
10+
$4.700
25+
$4.340
50+
$4.000
100+
$3.560
More Pricing...
Min: 1 / Mult: 1
YYYY:MM:DD:Hr:Min:Secs
24Hr
Alarm RTC
1.3V
5.5V
SON
10Pins
SPI
-40°C
125°C
-
-
09X0517

RoHS

Each
1+
$3.010
10+
$2.470
25+
$2.280
50+
$2.090
100+
$1.860
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
12Hr / 24Hr
RTC
1V
4.4V
LCC
8Pins
I2C
-40°C
85°C
-
-
12X8718

RoHS

Date/Lot Code

Each
1+
$1.040
10+
$1.040
25+
$0.964
50+
$0.944
100+
$0.923
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
101-125 of 343 items
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