Real Time Clocks:

342 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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94AC1625

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$7.670
10+
$5.920
25+
$5.470
50+
$5.240
100+
$5.000
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD-dd
HH:MM:SS
RTC
2.7V
5.5V
SOIC
20Pins
I2C
-40°C
85°C
-
-
73AJ0500

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$4.360
10+
$3.400
25+
$3.150
50+
$2.970
100+
$2.780
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
YY-MM-DD-dd
HH:MM:SS:hh
RTC
1.3V
4.4V
CLCC
8Pins
I2C
-40°C
85°C
-
-
93T1810

RoHS

Date/Lot Code

Each
1+
$0.711
10+
$0.684
25+
$0.658
50+
$0.642
100+
$0.626
Min: 1 / Mult: 1
DD:MM:YYYY
HH:MM:SS
RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
AEC-Q100
73Y1174

RoHS

Date/Lot Code

Each
1+
$53.810
5+
$51.750
10+
$49.710
30+
$48.300
50+
$46.890
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
RTC
4.5V
5.5V
EDIP
32Pins
Bytewide
0°C
70°C
-
-
84AC6856

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$4.200
10+
$3.170
25+
$2.920
50+
$2.780
100+
$2.640
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2.7V
5.5V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
73Y1368

RoHS

Date/Lot Code

Each
1+
$54.370
5+
$50.120
10+
$45.880
25+
$41.640
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
4.5V
5.5V
EDIP
28Pins
Bytewide
-40°C
85°C
-
-
30AC9818

RoHS

Date/Lot Code

Each
1+
$1.250
10+
$1.200
25+
$1.150
50+
$1.130
100+
$1.100
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
MSOP
8Pins
I2C
-40°C
85°C
-
-
45AC7409

RoHS

STMICROELECTRONICS
Each (Supplied on Cut Tape)
Cut Tape
1+
$3.820
10+
$3.010
25+
$2.800
50+
$2.700
100+
$2.580
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS:hh
Alarm RTC
3V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
09X0518

RoHS

Each
1+
$4.550
10+
$4.050
25+
$3.750
50+
$3.450
100+
$3.070
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
24Hr
RTC
1.2V
5.5V
SON
10Pins
I2C
-40°C
85°C
-
-
87X6752

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$9.420
10+
$8.990
25+
$8.440
50+
$8.010
100+
$7.190
More Pricing...
Min: 1 / Mult: 1
-
-
Alarm RTC
1.6V
5.5V
SOP
14Pins
I2C, SPI
-40°C
85°C
-
-
12X8720

RoHS

Date/Lot Code

Each
1+
$1.110
10+
$1.060
25+
$1.020
50+
$0.992
100+
$0.965
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
44AC2581

RoHS

Date/Lot Code

Each
1+
$1.480
10+
$1.420
25+
$1.360
50+
$1.330
100+
$1.300
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS:hh
Calendar, Clock
1.8V
3.6V
MSOP
10Pins
Serial SPI
-40°C
85°C
-
-
10AC8049

RoHS

Date/Lot Code

Each (Supplied on Full Reel)
Full Reel
1+
$0.646
Min: 3300 / Mult: 3300
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
-
73Y1215

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$4.220
10+
$3.190
25+
$2.940
50+
$2.790
100+
$2.650
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.8V
5.5V
NSOIC
8Pins
I2C
-40°C
85°C
-
-
73Y1373

RoHS

Date/Lot Code

Each
1+
$57.150
5+
$51.940
10+
$46.730
33+
$43.850
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
4.5V
5.5V
EDIP
32Pins
Bytewide
0°C
70°C
-
-
38AC0919

RoHS

Date/Lot Code

Each
1+
$5.620
10+
$5.050
25+
$4.910
50+
$4.770
100+
$4.140
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
2.7V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
73Y1372

RoHS

Date/Lot Code

Each
1+
$43.360
5+
$40.510
10+
$37.660
25+
$36.140
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
RTC
2.97V
3.63V
PWRCP
34Pins
Bytewide
-40°C
85°C
-
-
51AC9307

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$8.710
10+
$8.040
25+
$8.040
50+
$7.470
100+
$7.460
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year; Century
HH:MM:SS
Calendar, Clock
2.7V
3.6V
SOIC
28Pins
I2C, Serial
-40°C
85°C
-
-
73Y1227

RoHS

Date/Lot Code

Each
1+
$6.160
10+
$4.730
25+
$4.430
50+
$4.140
100+
$3.960
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
1.71V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
68AH9616

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$8.040
10+
$6.230
25+
$5.770
50+
$5.520
100+
$5.260
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
Alarm RTC
2V
5.5V
TSSOP
20Pins
3 Wire, Serial, SPI
0°C
70°C
-
-
12AJ8308

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$5.470
10+
$4.180
25+
$3.850
50+
$3.670
100+
$3.490
More Pricing...
Min: 1 / Mult: 1
Day; Date; Month; Year
HH:MM:SS
RTC
3V
5.5V
µSOP
8Pins
I2C
-40°C
85°C
-
-
68AH9618

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$9.510
10+
$7.390
25+
$6.870
50+
$6.590
100+
$6.290
More Pricing...
Min: 1 / Mult: 1
YY-MM-DD
HH:MM:SS
RTC
3V
5.5V
SOIC
16Pins
I2C
-40°C
85°C
-
-
64AH7103

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.450
10+
$1.050
25+
$0.950
50+
$0.896
Min: 1 / Mult: 1
YYYY-MM-DD
HH:MM:SS
RTCC
900mV
5.5V
TSSOP
8Pins
I2C
-40°C
105°C
-
AEC-Q100
73AJ0971

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$2.030
10+
$1.540
25+
$1.420
50+
$1.360
100+
$1.290
More Pricing...
Min: 5 / Mult: 5
Min: 100 / Mult: 5
YY-MM-DD-dd
HH:MM:SS:hh
RTC
1.5V
3.6V
QFN-EP
16Pins
SPI
-40°C
85°C
-
-
26T2748

RoHS

Date/Lot Code

Each
1+
$0.806
Min: 1 / Mult: 1
YYYY:MM:WK:DD:Hr:Min:Secs
12Hr / 24Hr
Alarm RTC
1.8V
5.5V
SOIC
8Pins
I2C
-40°C
85°C
-
AEC-Q100
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