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EM3027 

DescriptionThe EM3027 is an Ultra Low Power CMOS real-time clock IC with possibility one of the serial interfaces: I2C or SPI . The choice of the interface is fixed according to the chip version.A clock is obtained from 32768 Hz crystal oscillator. A thermal compensation of the frequency is based ...

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SeekIC No. : 004335886 Detail

EM3027 : DescriptionThe EM3027 is an Ultra Low Power CMOS real-time clock IC with possibility one of the serial interfaces: I2C or SPI . The choice of the interface is fixed according to the chip version.A c...

EM3027  Data Sheet

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Part Number:
EM3027 
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/7/15

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Description



Description

The EM3027 is an Ultra Low Power CMOS real-time clock IC with possibility one of the serial interfaces: I2C or SPI . The choice of the interface is fixed according to the chip version.
A clock is obtained from 32768 Hz crystal oscillator. A thermal compensation of the frequency is based on the temperature measurement and calculation of a correction value. The temperature can be measured internally or written by an external application to the register.
The chip provides clock and calendar information in BCD format with alarm possibility. The actual contents are latched at the beginning of a read transaction and afterwards data are read without clock counter data corruption.
An integrated 16-bit timer can run in Zero-Stop or Auto-Reload mode. An interrupt can be provided through INT/IRQ pin due to events coming from Alarm, Timer, Voltage detector and Digital Self-Recovery system.
An integrated Trickle Charger allows recharging Backup Supply VBack from the Main Supply Voltage VCC through internal resistor(s). The device supply will switchover Vcc when Vcc is higher than VBack.
The device EM3027 operates over a wide 1.3 V to 5.5 V supply range and requires only 600nA at 5 V. It's possible to detect internally two voltage levels.



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