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
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RS 제품 번호 189-8352
제조사 부품 번호DS1501YZN+
제조사Maxim Integrated
₩15,958.80
Each
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Calendar YY:MM:DD HH:MM:SS 256B Parallel Surface Mount SOIC 28 18.1 x 7.6 x 2.35mm 18.1mm 7.6mm 2.35mm 5.5 V +85 °C
RS 제품 번호 169-9344
제조사 부품 번호BU9873FJ-GTE2
제조사ROHM
₩1,074.15
Each (In a Pack of 10)
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Real Time Clock YY:MM:DD:dd HH:MM:SS - Serial-I2C Surface Mount SOP 8 5.25 x 3.9 x 1.37mm 5.25mm 3.9mm 1.37mm 5.5 V +85 °C
RS 제품 번호 732-7327
제조사 부품 번호DS1305EN+
제조사Maxim Integrated
₩8,108.05
Each
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Battery Backup, Calendar, NV RAM DW:DM:M:Y HH:MM:SS 96B Serial-SPI Surface Mount TSSOP 20 6.6 x 4.5 x 0.95mm 6.6mm 4.5mm 0.95mm 5.5 V +85 °C
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RS 제품 번호 189-7252
제조사 부품 번호DS3232MZ+
제조사Maxim Integrated
₩8,836.55
Each (In a Tube of 100)
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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 제품 번호 798-5258
제조사 부품 번호MCP7940N-I/SN
제조사Microchip
₩992.00
Each (In a Pack of 10)
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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
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RS 제품 번호 190-5143
제조사 부품 번호DS1340Z-33+T&R
제조사Maxim Integrated
₩5,009.60
Each (In a Pack of 5)
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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
RS 제품 번호 880-5342
제조사 부품 번호M41T62LC6F
₩4,913.50
Each (In a Pack of 5)
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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
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RS 제품 번호 190-4731
제조사 부품 번호DS1338U-33+T&R
제조사Maxim Integrated
₩2,366.85
Each (On a Reel of 3000)
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- DM:M:DW:Y SS:MM:HH - Serial-I2C Surface Mount μSOP 8 3.1 x 0.65 x 0.95mm 3.1mm 0.65mm 0.95mm 5.5 V +85 °C
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RS 제품 번호 190-4734
제조사 부품 번호DS1339C-33#T&R
제조사Maxim Integrated
₩4,426.80
Each (On a Reel of 1000)
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- DM:M:DW:Y SS:MM:HH - Serial-I2C Surface Mount SO 16 10.5 x 7.6 x 2.35mm 10.5mm 7.6mm 2.35mm 5.5 V +85 °C
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RS 제품 번호 190-5155
제조사 부품 번호DS1315-5+
제조사Maxim Integrated
₩22,000.70
Each
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- - - - - Through Hole PDIP 16 19.43 x 7.87 x 4.45mm 19.43mm 7.87mm 4.45mm 5.5 V +70 °C
RS 제품 번호 797-9590
제조사 부품 번호DS1746WP-120+
제조사Maxim Integrated
₩41,910.45
Each
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Calendar YY:MM:DD HH:MM:SS 128 x 8bit Parallel Surface Mount Power Cap 34 25.27 x 23.62 x 0.81mm 25.27mm 23.62mm 0.81mm 0.6 V, 3.6 V +70 °C
RS 제품 번호 823-7954
제조사 부품 번호MCP79511-I/MS
제조사Microchip
₩1,559.30
Each (In a Pack of 5)
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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 제품 번호 162-6913
제조사 부품 번호BQ4802LYPW
₩7,773.25
Each (In a Tube of 50)
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Alarm, Battery Backup, Calendar, NV SRAM DW:DM:M:Y HH:MM:SS 16B Parallel Surface Mount TSSOP 28 9.7 x 4.4 x 1.15mm 9.7mm 4.4mm 1.15mm 3.6 V +70 °C
RS 제품 번호 761-3896
제조사 부품 번호DS1337S+T&R
제조사Maxim Integrated
₩3,482.85
Each (In a Pack of 5)
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Calendar YY:MM:DD HH:MM:SS - Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
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RS 제품 번호 190-5176
제조사 부품 번호DS3234S#T&R
제조사Maxim Integrated
₩11,899.35
Each
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SRAM - SS:MM:HH 256B - Surface Mount SO 20 13 x 7.6 x 2.35mm 13mm 7.6mm 2.35mm 5.5 V +70 °C
RS 제품 번호 540-4766
제조사 부품 번호DS1305+
제조사Maxim Integrated
₩8,201.05
Each
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Alarm, Calendar DW:DM:M:Y HH:MM:SS 96B Serial-SPI Through Hole PDIP 16 19.43 x 7.87 x 4.45mm 19.43mm 7.87mm 4.45mm 5.5 V +70 °C
RS 제품 번호 136-0683
제조사 부품 번호DS1337U+
제조사Maxim Integrated
₩3,171.30
Each (In a Tube of 50)
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- - - - - - - - - - - - - -
RS 제품 번호 798-5254
제조사 부품 번호MCP7940N-I/MS
제조사Microchip
₩1,043.15
Each (In a Pack of 10)
수량
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
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RS 제품 번호 190-4732
제조사 부품 번호DS1338Z-33+T&R
제조사Maxim Integrated
₩2,404.05
Each (On a Reel of 2500)
수량
- DM:M:DW:Y SS:MM:HH - Serial-I2C Surface Mount μSOP 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C
RS 제품 번호 727-5731
제조사 부품 번호PCF2123TS/1,112
제조사NXP
₩1,559.30
Each (In a Pack of 2)
수량
Alarm, Calendar, Interrupt, Timer DW:DM:M:Y HH:MM:SS - Serial-SPI Surface Mount TSSOP 14 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 5.5 V +85 °C