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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제품설명 단가 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 제품 번호 171-1643
제조사 부품 번호RV-8564-C2-TA-010
제조사Micro Crystal
₩7,779.45
Each (On a Tape of 100)
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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 제품 번호 169-8278
제조사 부품 번호CDP68HC68T1EZ
제조사Intersil
₩13,105.25
Each (In a Tube of 25)
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Alarm, Battery Backup, Calendar, Watchdog Timer DW:DM:M:Y HH:MM:SS 32B Serial-SPI Through Hole PDIP 16 19.68 x 7.11 x 4.95mm 19.68mm 7.11mm 4.95mm 6 V +85 °C
RS 제품 번호 797-9506
제조사 부품 번호DS1685E-3+
제조사Maxim Integrated
₩8,278.55
Each
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Alarm, Calendar YY:MM:DD HH:MM:SS 128B Multiplexed Surface Mount TSSOP 24 7.9 x 4.5 x 0.95mm 7.9mm 4.5mm 0.95mm 5 V +70 °C
RS 제품 번호 732-7343
제조사 부품 번호DS1337C#
제조사Maxim Integrated
₩7,533.00
Each
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Calendar DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount SOIC 16 10.5 x 7.6 x 2.35mm 10.5mm 7.6mm 2.35mm 5.5 V +85 °C
RS 제품 번호 168-8017
제조사 부품 번호M48T12-70PC1
₩17,679.30
Each (In a Tube of 14)
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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
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RS 제품 번호 191-4205
제조사 부품 번호DS1687-3+
제조사Maxim Integrated
₩19,770.25
Each (In a Tube of 14)
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- - - 242B Multiplexed Surface Mount EDIP 24 1.34 x 0.72 x 0.37mm 1.34mm 0.72mm 0.37mm 5.5 V +70 °C
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RS 제품 번호 189-8362
제조사 부품 번호DS3232S#
제조사Maxim Integrated
₩12,328.70
Each
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Battery Backup, Calendar, NV RAM DD:M:Y HH:MM:SS - Serial-I2C Surface Mount SOIC 20 13 x 7.6 x 2.35mm 13mm 7.6mm 2.35mm 5.5 V +70 °C
신제품
RS 제품 번호 189-7226
제조사 부품 번호DS1339C-33#
제조사Maxim Integrated
₩7,517.50
Each (In a Tube of 46)
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Battery Backup, Calendar DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount SOIC 16 10.5 x 7.6 x 2.35mm 10.5mm 7.6mm 2.35mm 5.5 V +85 °C
RS 제품 번호 146-1297
제조사 부품 번호DS12R885S-33+
제조사Maxim Integrated
₩4,756.95
Each (In a Tube of 30)
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Alarm, Leap Year, NV SRAM, Square Wave Output, Trickle Charger YY:MM:DD HH:MM:SS 114B Multiplexed Surface Mount SOIC 24 15.6 x 7.6 x 2.35mm 15.6mm 7.6mm 2.35mm 5.5 V +85 °C
RS 제품 번호 111-3741
제조사 부품 번호MCP7940MT-I/SN
제조사Microchip
₩663.40
Each (On a Reel of 3300)
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Calendar, Clock DM:M:DW:Y HH:MM:SS - Serial-2 Wire, 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 제품 번호 923-5814
제조사 부품 번호DS1339U-33+
제조사Maxim Integrated
₩3,648.70
Each (In a Tube of 100)
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Battery Backup, Calendar DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount μSOP 8 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS 제품 번호 171-1637
제조사 부품 번호RV-2123-C2-STD-020
제조사Micro Crystal
₩7,911.20
Each (On a Tape of 100)
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Alarm, Calendar, Timer DW:DM:M:Y HH:MM:SS - Serial-SPI Surface Mount SON 10 5 x 3.2 x 1.2mm 5mm 3.2mm 1.2mm 5.5 V +85 °C
RS 제품 번호 732-7598
제조사 부품 번호DS3234SN#
제조사Maxim Integrated
₩12,475.95
Each
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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
RS 제품 번호 169-8145
제조사 부품 번호Q418564C2000511
제조사EPSON
₩3,673.50
Each (On a Reel of 250)
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Alarm, Calendar, Timer DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount VSOJ 12 - 3.6mm 2.4mm - 5.5 V +85 °C
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RS 제품 번호 190-4737
제조사 부품 번호DS1340Z-33+T&R
제조사Maxim Integrated
₩2,404.05
Each (On a Reel of 2500)
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- - SS:MM:HH - Serial-I2C Surface Mount SO 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
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RS 제품 번호 189-7225
제조사 부품 번호DS1338Z-33+
제조사Maxim Integrated
₩3,557.25
Each (In a Tube of 100)
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Battery Backup, Calendar, NV RAM DW:DM:M:Y HH:MM:SS 56B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS 제품 번호 100-0649
제조사 부품 번호ISL1208IU8Z-T7A
제조사Intersil
₩3,975.75
Each (On a Tape of 2)
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Alarm, Calendar, Clock, SRAM DW:DM:M:Y HH:MM:SS - Serial-I2C Surface Mount MSOP 8 3.05 x 3.05 x 0.95mm 3.05mm 3.05mm 0.95mm 5.5 V +85 °C
RS 제품 번호 171-1642
제조사 부품 번호RV-3049-C2-TB-030
제조사Micro Crystal
₩7,647.70
Each (On a Tape of 100)
수량
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 제품 번호 165-2031
제조사 부품 번호MCP79522-I/MS
제조사Microchip
₩1,449.25
Each (In a Tube of 100)
수량
Calendar DW:M:Y:LY HH:MM:SS:HSS 64B Serial Surface Mount MSOP 10 3 x 3 x 0.95mm 3mm 3mm 0.95mm 3.6 V +85 °C
신제품
RS 제품 번호 190-4736
제조사 부품 번호DS1340Z-33+
제조사Maxim Integrated
₩3,701.40
Each (In a Tube of 100)
수량
- - SS:MM:HH - Serial-I2C Surface Mount SO 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C