Real Time Clocks

What is a Real Time Clock?A Real Time Clock (RTC) is a computer clock which is usually in the form of an integrated circuit. They have been designed to keep track of time, in real time - hence the product name. A Real Time Clock is usually an integral part of the computer motherboard. More often than not, a RTC will also include a calendar and an alarmHow do Real Time Clocks work?The memory on the clocks system stores system descriptions and set up values such as "Current Time Value". The information that is held in the RTC is read with a microprocessor, commonly over a serial interface which facilitate the performance of the software functions that are time dependant. They are designed to run on an ultra-low power consumption, often run on a lithium battery source or normal power. This power source allows them to continue running and generating real time when a system is down. The newer models of RTC use super-capacitors as a source of power that can be recharged and soldered to the board.Some Real Time Clocks feature synchronisation to an external signal, such as a compensated power line frequency. It allows the device to provide an accurate result without having an on-board temperature compensation scheme. RTC Time Values Year Month Date Hours Minutes Seconds

...
Lees meer Lees minder

Filters

1 - 20 van 461 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Functions Date Format Time Format User RAM Bus Type Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature
RS-stocknr. 920-9004
FabrikantnummerM48T58-70PC1
€ 15,985
Each (In a Tube of 12)
Aantal stuks
Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 8192B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V +70 °C
RS-stocknr. 686-5036
FabrikantnummerM48T58-70PC1
€ 17,29
Each
Aantal stuks
Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 8192B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V +70 °C
RS-stocknr. 124-2362
FabrikantnummerPCF8563T/5,518
FabrikantNXP
€ 0,658
Each (On a Reel of 2500)
Aantal stuks
Calendar, Clock YY:MM:DD:dd HH:MM:SS - Serial-2 Wire, Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.45mm 5mm 4mm 1.45mm 5.5 V +85 °C
RS-stocknr. 865-2208
FabrikantnummerPCF8563T/5,518
FabrikantNXP
€ 0,683
Each (In a Pack of 10)
Aantal stuks
Calendar, Clock YY:MM:DD:dd HH:MM:SS - Serial-2 Wire, Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.45mm 5mm 4mm 1.45mm 5.5 V +85 °C
RS-stocknr. 136-0682
FabrikantnummerDS12887A+
FabrikantMaxim Integrated
€ 8,004
Each (In a Tube of 14)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 624-8466
FabrikantnummerM48T35Y-70PC1
€ 22,48
Each
Aantal stuks
Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 32768B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V +70 °C
RS-stocknr. 920-9001
FabrikantnummerM48T35Y-70PC1
€ 21,263
Each (In a Tube of 12)
Aantal stuks
Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 32768B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V +70 °C
RS-stocknr. 667-6234
FabrikantnummerQ41454351000200
FabrikantEPSON
€ 2,58
Each
Aantal stuks
Calendar DW:DM:M:Y HH:MM:SS - Serial Surface Mount SOP 14 10.1 x 5 x 3.15mm 10.1mm 5mm 3.15mm 5.5 V +85 °C
RS-stocknr. 169-8138
FabrikantnummerQ41454351000200
FabrikantEPSON
€ 2,346
Each (In a Tube of 25)
Aantal stuks
Calendar DW:DM:M:Y HH:MM:SS - Serial Surface Mount SOP 14 10.1 x 5 x 3.15mm 10.1mm 5mm 3.15mm 5.5 V +85 °C
RS-stocknr. 166-0314
FabrikantnummerPCA8565TS/1,118
FabrikantNXP
€ 0,698
Each (On a Reel of 2500)
Aantal stuks
Alarm, Calendar, Interrupt, Timer DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount TSSOP 8 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +125 °C
RS-stocknr. 727-5743
FabrikantnummerPCA8565TS/1,118
FabrikantNXP
€ 1,41
Each (In a Pack of 2)
Aantal stuks
Alarm, Calendar, Interrupt, Timer DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount TSSOP 8 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +125 °C
RS-stocknr. 809-1420
FabrikantnummerM41T81M6F
€ 2,252
Each (In a Pack of 5)
Aantal stuks
Alarm Binary HH:MM:SS:hh 20B Serial Surface Mount SOIC 8 5 x 4 x 1.25mm 5mm 4mm 1.25mm 5.5 V +85 °C
RS-stocknr. 102-3553
FabrikantnummerM41T81M6F
€ 1,072
Each (On a Reel of 2500)
Aantal stuks
Alarm Binary HH:MM:SS:hh 20B Serial Surface Mount SOIC 8 5 x 4 x 1.25mm 5mm 4mm 1.25mm 5.5 V +85 °C
RS-stocknr. 761-7627
FabrikantnummerMCP7940M-I/SN
FabrikantMicrochip
€ 0,522
Each (In a Pack of 5)
Aantal stuks
Calendar, NV SRAM DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 5.5 V +85 °C
RS-stocknr. 667-6221
FabrikantnummerQ42724231000611
FabrikantEPSON
€ 6,68
Each
Aantal stuks
Calendar, Timer - - - Serial-I2C Surface Mount SOP 24 16.3 x 7.9 x 2.8mm 16.3mm 7.9mm 2.8mm 5.5 V +85 °C
RS-stocknr. 169-8137
FabrikantnummerQ41454351000111
FabrikantEPSON
€ 2,758
Each (On a Reel of 250)
Aantal stuks
Calendar, Timer - - - Serial Surface Mount SOP 14 5 x 10.1 x 3.2mm 5mm 10.1mm 3.2mm 5.5 V +85 °C
RS-stocknr. 920-8991
FabrikantnummerM48T58Y-70PC1
€ 14,43
Each (In a Tube of 12)
Aantal stuks
Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 8192B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V +70 °C
RS-stocknr. 829-0355
FabrikantnummerM41T81SM6F
€ 2,252
Each (In a Pack of 5)
Aantal stuks
Calendar D:D:M:Y:C HH:MM:SS:HSS 20B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-stocknr. 169-8135
FabrikantnummerQ42724231000611
FabrikantEPSON
€ 5,399
Each (In a Tube of 25)
Aantal stuks
Calendar, Timer - - - Serial-I2C Surface Mount SOP 24 16.3 x 7.9 x 2.8mm 16.3mm 7.9mm 2.8mm 5.5 V +85 °C
RS-stocknr. 921-5964
FabrikantnummerISL12022MIBZ
€ 5,76
Each (In a Pack of 2)
Aantal stuks
Alarm, Battery Backup, Calendar, Low Battery Detection DW:DM:M:Y SS:MM:HH 128B Serial-I2C Surface Mount SOIC 20 13 x 7.6 x 2.35mm 13mm 7.6mm 2.35mm 5.5 V +85 °C
Related Products
Professional range of PLCs which can provide the ...
Description:
Professional range of PLCs which can provide the user with a secure, high-powered unit with exeptional expandability options thanks to the variety of expansion cassettes available for the series.APFX programmable controllers offer a Servo and Stepper motor control solution with ...
The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) ...
Description:
The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) that supports I²C communications. The MCP7940M includes a digital trimming circuit for accuracy which can compensate for crystal tolerance and temperature.The MCP7940M features a multi-functional output that can be configured as an ...
A range of real-time clock products from Maxim ...
Description:
A range of real-time clock products from Maxim incorporating non-volatile RAM memory for data retention. The clock/calendar functions provide seconds, minutes, hours, day, date, month, and year information. The clocks generally operate in either the 12 or 24-hour format with ...
The BU9873 is a CMOS real-time clock, which ...
Description:
The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision ...