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

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Beskrivning Pris 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-artikelnummer 714-7298
Tillv. art.nrM48T18-100PC1
VarumärkeSTMicroelectronics
205,56 kr
Each
Enheter
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-artikelnummer 919-6337
Tillv. art.nrM48T18-100PC1
VarumärkeSTMicroelectronics
156,168 kr
Each (In a Tube of 12)
Enheter
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-artikelnummer 920-9120
Tillv. art.nrM41T00M6F
VarumärkeSTMicroelectronics
12,144 kr
Each (On a Reel of 2500)
Enheter
Calendar D:M:Y:C HH:MM:SS 8B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-artikelnummer 829-0380
Tillv. art.nrM41T00M6F
VarumärkeSTMicroelectronics
24,588 kr
Each (In a Pack of 5)
Enheter
Calendar D:M:Y:C HH:MM:SS 8B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-artikelnummer 828-9977
Tillv. art.nrM48T12-70PC1
VarumärkeSTMicroelectronics
149,31 kr
Each
Enheter
Timekeeper SRAM D:M:Y HH:MM:SS 16kbit - Through Hole PCDIP 24 34.8 x 18.34 x 8.89mm 34.8mm 18.34mm 8.89mm 5.5 V +70 °C
RS-artikelnummer 168-6813
Tillv. art.nrM41T00SM6F
VarumärkeSTMicroelectronics
12,144 kr
Each (On a Reel of 2500)
Enheter
- 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-artikelnummer 714-0855
Tillv. art.nrM41T00SM6F
VarumärkeSTMicroelectronics
24,20 kr
Each
Enheter
- 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-artikelnummer 920-9001
Tillv. art.nrM48T35Y-70PC1
VarumärkeSTMicroelectronics
219,854 kr
Each (In a Tube of 12)
Enheter
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-artikelnummer 168-8017
Tillv. art.nrM48T12-70PC1
VarumärkeSTMicroelectronics
141,171 kr
Each (In a Tube of 14)
Enheter
Timekeeper SRAM D:M:Y HH:MM:SS 16kbit - Through Hole PCDIP 24 34.8 x 18.34 x 8.89mm 34.8mm 18.34mm 8.89mm 5.5 V +70 °C
RS-artikelnummer 624-8466
Tillv. art.nrM48T35Y-70PC1
VarumärkeSTMicroelectronics
232,44 kr
Each
Enheter
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-artikelnummer 145-9302
Tillv. art.nrM41T0M6F
VarumärkeSTMicroelectronics
9,137 kr
Each (On a Reel of 2500)
Enheter
Real Time Clock DW:DM:M:Y HH:MM:SS 8B Serial-2 Wire, Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-artikelnummer 877-2784
Tillv. art.nrM41T93RMY6F
VarumärkeSTMicroelectronics
37,782 kr
Each (In a Pack of 5)
Enheter
Real Time Clock DW:DM:M:Y HH:MM:SS:hh 32B Serial-4 Wire, Serial-I2C Surface Mount SOX 18 11.66 x 7.67 x 2.39mm 11.66mm 7.67mm 2.39mm 5.5 V +85 °C
RS-artikelnummer 188-9342
Tillv. art.nrM41T80M6F
VarumärkeSTMicroelectronics
19,96 kr
Each
Enheter
Alarm, Calendar Binary, D:D:M:Y:C - - Serial-2 Wire, Serial-I2C Surface Mount SO 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS-artikelnummer 165-8028
Tillv. art.nrM41ST87WMX6TR
VarumärkeSTMicroelectronics
39,582 kr
Each (On a Reel of 1000)
Enheter
Calendar, Clock DD:MM:YY HH:MM:SS 128B Serial-I2C Surface Mount SOX 28 18.01 x 7.67 x 2.38mm 18.01mm 7.67mm 2.38mm 3.6 V +85 °C
RS-artikelnummer 102-3553
Tillv. art.nrM41T81M6F
VarumärkeSTMicroelectronics
11,083 kr
Each (On a Reel of 2500)
Enheter
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-artikelnummer 880-5349
Tillv. art.nrM41T94MQ6F
VarumärkeSTMicroelectronics
32,322 kr
Each (In a Pack of 5)
Enheter
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 SOIC 16 10 x 4 x 1.6mm 10mm 4mm 1.6mm 5.5 V +85 °C
RS-artikelnummer 880-5342
Tillv. art.nrM41T62LC6F
VarumärkeSTMicroelectronics
35,032 kr
Each (In a Pack of 5)
Enheter
Alarm, Calendar, Real Time Clock, Square Wave Output, Watchdog Timer Binary, D:D:M:Y:C Binary, HH:MM:SS 16B Serial Surface Mount CLCC 8 3.3 x 1.6 x 0.8mm 3.3mm 1.6mm 0.8mm 4.4 V +85 °C
RS-artikelnummer 168-8043
Tillv. art.nrM41ST87WSS6F
VarumärkeSTMicroelectronics
34,369 kr
Each (On a Reel of 1350)
Enheter
Calendar D:D:M:Y:C HH:MM:SS:HSS 128B Serial Surface Mount SSOP 20 7.5 x 5.6 x 1.85mm 7.5mm 5.6mm 1.85mm 3.6 V +85 °C
RS-artikelnummer 624-8416
Tillv. art.nrM41T60Q6F
VarumärkeSTMicroelectronics
6,304 kr
Each (In a Pack of 5)
Enheter
Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 8B Serial-I2C Surface Mount QFN 16 3 x 3 x 0.88mm 3mm 3mm 0.88mm 4.4 V +85 °C
RS-artikelnummer 166-0790
Tillv. art.nrM41T65Q6F
VarumärkeSTMicroelectronics
9,053 kr
Each (On a Reel of 3000)
Enheter
Alarm, Battery Backup, Calendar, Watchdog Timer DW:DM:M:Y HH:MM:SS:hh 16B Serial-I2C Surface Mount QFN 16 3 x 3 x 0.88mm 3mm 3mm 0.88mm 4.4 V +85 °C