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    Real Time Clocks

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    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, an RTC will also include a calendar and an alarm

    How 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 facilitates the performance of the software functions that are time dependant.

    Designed to run on ultra-low power consumption, RTCs often run on a lithium battery source but can also run on 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

    276 표시되는 제품 Real Time Clocks

    • RS 제품 번호 828-9977P
    • 제조사 부품 번호 M48T12-70PC1
    개당(튜브에 담겨 공급됨)
    ₩29,365.60
    STMicroelectronics
    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
    • RS 제품 번호 518-429
    • 제조사 부품 번호 ISL1208IB8Z
    개당가격(5개가 1팩안에)
    ₩3,985.60
    Renesas Electronics
    Alarm, Battery Backup, Calendar
    DW:DM:M:Y
    HH:MM:SS
    2B
    Serial-I2C
    Surface Mount
    SOIC
    8
    5 x 4 x 1.5mm
    -
    5mm
    4mm
    1.5mm
    5.5 V
    • RS 제품 번호 904-7512
    • 제조사 부품 번호 X1B000311000112
    개당
    ₩2,848.20
    Epson
    Clock
    -
    SS:HH
    32bit
    Serial-I2C
    Surface Mount
    -
    10
    3.2 x 2.5 x 1mm
    -
    3.2mm
    2.5mm
    1mm
    5.5 V
    개당(릴로 공급됨)
    ₩5,196.32
    STMicroelectronics
    -
    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
    • RS 제품 번호 168-8043
    • 제조사 부품 번호 M41ST87WSS6F
    개당가격(1350개가 1릴안에)
    ₩9,415.04
    STMicroelectronics
    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
    • RS 제품 번호 165-2099
    • 제조사 부품 번호 MCP79510-I/MS
    개당가격(100개가 1튜브안에)
    ₩2,389.48
    Microchip
    Calendar
    DW:M:Y:LY
    HH:MM:SS:HSS
    64B
    Serial-SPI
    Surface Mount
    MSOP
    10
    3 x 3 x 0.95mm
    -
    3mm
    3mm
    0.95mm
    3.6 V
    • RS 제품 번호 803-2222
    • 제조사 부품 번호 MCP79520-I/MS
    개당가격(5개가 1팩안에)
    ₩2,575.60
    Microchip
    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
    • RS 제품 번호 146-0283
    • 제조사 부품 번호 MCP79411-I/MS
    개당가격(100개가 1튜브안에)
    ₩2,177.04
    Microchip
    Calendar
    DW:DM: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
    • RS 제품 번호 803-2222P
    • 제조사 부품 번호 MCP79520-I/MS
    개당(튜브에 담겨 공급됨)
    ₩2,190.20
    Microchip
    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
    • RS 제품 번호 219-4638
    • 제조사 부품 번호 PCF8523T/1,118
    개당가격(2500개가 1릴안에)
    ₩1,455.12
    NXP
    Timer
    D:W:M:Y
    SS:MM:HH
    128bit
    -
    -
    SO8
    8
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 169-8222
    • 제조사 부품 번호 X1B000311000112
    개당가격(20개가 1테이프안에)
    ₩2,915.88
    Epson
    Clock
    -
    SS:HH
    32bit
    Serial-I2C
    Surface Mount
    -
    10
    3.2 x 2.5 x 1mm
    -
    3.2mm
    2.5mm
    1mm
    5.5 V
    • RS 제품 번호 920-8991
    • 제조사 부품 번호 M48T58Y-70PC1
    개당가격(12개가 1튜브안에)
    ₩34,535.60
    STMicroelectronics
    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
    • RS 제품 번호 205-3460
    • 제조사 부품 번호 X1B000371000212
    개당가격(250개가 1릴안에)
    ₩5,444.48
    Epson
    Real Time Clock
    -
    -
    -
    -
    -
    3.2x2.5 ceramic package
    10
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 165-2002
    • 제조사 부품 번호 MCP79400-I/SN
    개당가격(100개가 1튜브안에)
    ₩1,530.32
    Microchip
    Calendar
    DW:DM:M:Y
    HH:MM:SS
    64B
    Serial-2 Wire, Serial-I2C
    Surface Mount
    SOIC
    8
    4.9 x 3.9 x 1.5mm
    -
    4.9mm
    3.9mm
    1.5mm
    2.5 V
    • RS 제품 번호 912-2774
    • 제조사 부품 번호 MCP7940N-I/SN
    개당가격(100개가 1튜브안에)
    ₩1,592.36
    Microchip
    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
    • RS 제품 번호 667-6278
    • 제조사 부품 번호 Q41802551000111
    개당
    ₩6,762.36
    Epson
    Alarm, Calendar, Timer
    -
    -
    -
    Serial-I2C
    Surface Mount
    SOP
    14
    5 x 10.1 x 3.2mm
    -
    5mm
    10.1mm
    3.2mm
    5.5 V
    • RS 제품 번호 171-0522
    • 제조사 부품 번호 AB1805-T3
    개당가격(5개가 1팩안에)
    ₩2,797.44
    Abracon
    -
    -
    -
    -
    -
    -
    16-VFQFN
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 723-4749P
    • 제조사 부품 번호 MCP79410-I/MS
    개당(튜브에 담겨 공급됨)
    ₩1,793.52
    Microchip
    Battery Backup, Calendar, NV SRAM
    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
    • RS 제품 번호 205-3463
    • 제조사 부품 번호 X1B000301000112
    개당
    ₩5,969.00
    Epson
    Real Time Clock
    -
    -
    -
    -
    -
    3.2x2.5 ceramic package
    10
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 264-0598P
    • 제조사 부품 번호 ISL12026AIBZ
    개당(튜브에 담겨 공급됨)
    ₩6,608.20
    Renesas Electronics
    Alarm, Backup Battery, Calender, Clock Output, EEPROM
    DW:DM:M:Y
    Binary
    16bit
    Serial-I2C
    -
    SOIC 8
    8
    -
    -
    -
    -
    -
    -
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