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

41 - 60 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. 165-1998
FabrikantnummerMCP7940N-I/MS
FabrikantMicrochip
€ 0,643
Each (In a Tube of 100)
Aantal stuks
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V +85 °C
RS-stocknr. 798-5254
FabrikantnummerMCP7940N-I/MS
FabrikantMicrochip
€ 0,701
Each (In a Pack of 10)
Aantal stuks
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V +85 °C
RS-stocknr. 774-7403
FabrikantnummerMCP7940M-I/P
FabrikantMicrochip
€ 0,574
Each (In a Bag of 10)
Aantal stuks
Alarm, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Through Hole PDIP 8 10.16 x 7.11 x 4.95mm 10.16mm 7.11mm 4.95mm 5.5 V +85 °C
RS-stocknr. 923-1499
FabrikantnummerISL12020MIRZ
€ 4,808
Each (In a Tube of 53)
Aantal stuks
Alarm, Battery Backup, Calendar, Switch Over DW:DM:M:Y HH:MM:SS 128B Serial-I2C Surface Mount DFN 20 5.5 x 4 x 1.3mm 5.5mm 4mm 1.3mm 5.5 V +85 °C
RS-stocknr. 168-6813
FabrikantnummerM41T00SM6F
€ 1,121
Each (On a Reel of 2500)
Aantal stuks
- DW:DM:M:Y HH:MM:SS 8B Serial-2 Wire, Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.25mm 5mm 4mm 1.25mm 5.5 V +85 °C
RS-stocknr. 761-9755
FabrikantnummerDS1302ZN+T&R
FabrikantMaxim Integrated
€ 3,39
Each
Aantal stuks
Battery Backup, Calendar, NV RAM YY:MM:DD HH:MM:SS 31B Serial-3 Wire Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-stocknr. 165-2097
FabrikantnummerMCP79511-I/MS
FabrikantMicrochip
€ 0,98
Each (In a Tube of 100)
Aantal stuks
Calendar D:W:M:Y, LY HH, HS, MM, SS 64B Serial-SPI Surface Mount MSOP 10 3 x 3 x 0.95mm 3mm 3mm 0.95mm 3.6 V +85 °C
RS-stocknr. 817-3654
FabrikantnummerMCP79410T-I/MS
FabrikantMicrochip
€ 0,77
Each (On a Reel of 2500)
Aantal stuks
Alarm, Battery Backup, Calendar, Clock DW:D:M:Y HH:MM:SS 64B Serial-2 Wire, Serial-I2C Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V +85 °C
RS-stocknr. 171-1649
FabrikantnummerRV-8564-C2-TA-020
FabrikantMicro Crystal
€ 4,819
Each (On a Tape of 100)
Aantal stuks
Calendar DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount SON 10 5 x 3.2 x 1.2mm 5mm 3.2mm 1.2mm 5.5 V +85 °C
RS-stocknr. 171-1651
FabrikantnummerRV-3029-C3-TA-QC-OPT.B
FabrikantMicro Crystal
€ 4,354
Each (On a Tape of 100)
Aantal stuks
Alarm, Battery Backup, Calendar, Clock D:W:M:Y HH:MM:SS 8B Serial-2 Wire, Serial-I2C Surface Mount SON 10 3.7 x 2.5 x 0.9mm 3.7mm 2.5mm 0.9mm 5.5 V +85 °C
RS-stocknr. 798-5258
FabrikantnummerMCP7940N-I/SN
FabrikantMicrochip
€ 0,665
Each (In a Pack of 10)
Aantal stuks
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 4.9mm 3.9mm 1.5mm 5.5 V +85 °C
RS-stocknr. 171-1641
FabrikantnummerRV-3029-C2-TB-030
FabrikantMicro Crystal
€ 4,966
Each (On a Tape of 100)
Aantal stuks
Battery Backup, Calendar, NV RAM DW:DM:M:Y HH:MM:SS 8B Serial-I2C Surface Mount SON 10 5 x 3.2 x 1.2mm 5mm 3.2mm 1.2mm 5.5 V +85 °C
RS-stocknr. 165-5508
FabrikantnummerM41T94MH6F
€ 2,727
Each (On a Reel of 936)
Aantal stuks
Alarm, Battery Backup, Interrupt, NVRAM, Real Time Clock, Watchdog Timer Binary, D:D:M:Y:C Binary, HH:MM:SS 44B Serial-SPI Surface Mount SOH 28 18.49 x 8.89 x 2.69mm 18.49mm 8.89mm 2.69mm 5.5 V +85 °C
RS-stocknr. 171-1652
FabrikantnummerRV-3029-C3-TA-QC-OPT.A
FabrikantMicro Crystal
€ 4,92
Each (On a Tape of 100)
Aantal stuks
Alarm, Battery Backup, Calendar, Clock, Timer D:W:M:LY HH:MM:SS 8B Serial-2 Wire, Serial-I2C Surface Mount SON 10 3.7 x 2.5 x 0.9mm 3.7mm 2.5mm 0.9mm 5.5 V +85 °C
Nieuw
RS-stocknr. 190-7170
FabrikantnummerDS1904L-F5#
FabrikantMaxim Integrated
€ 9,40
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 798-5267
FabrikantnummerMCP79411-I/SN
FabrikantMicrochip
€ 0,88
Each (In a Pack of 10)
Aantal stuks
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 4.9mm 3.9mm 1.5mm 5.5 V +85 °C
RS-stocknr. 798-5260
FabrikantnummerMCP79412-I/SN
FabrikantMicrochip
€ 0,882
Each (In a Pack of 5)
Aantal stuks
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 4.9mm 3.9mm 1.5mm 5.5 V +85 °C
RS-stocknr. 171-1642
FabrikantnummerRV-3049-C2-TB-030
FabrikantMicro Crystal
€ 4,88
Each (On a Tape of 100)
Aantal stuks
Battery Backup, Calendar, NV RAM DW:DM:M:Y HH:MM:SS 8B Serial-SPI Surface Mount SON 10 5 x 3.2 x 1.2mm 5mm 3.2mm 1.2mm 5.5 V +85 °C
RS-stocknr. 189-8356
FabrikantnummerDS3232MZ+
FabrikantMaxim Integrated
€ 6,81
Each
Aantal stuks
Calendar DD:M:Y SS:MM:HH 236B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 4.5 V +85 °C
RS-stocknr. 103-9921
FabrikantnummerDS3234SN#
FabrikantMaxim Integrated
€ 7,064
Each (In a Tube of 36)
Aantal stuks
Battery Backup, Calendar, SRAM DW:DM:M:Y HH:MM:SS 256B Serial-SPI 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 ...