SPI Real time clock/calendar

General description The PCF2123 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power applications. Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.25 Mbit/s. An alarm and timer function is also available providing the possibi

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恩XP

SPI Real time clock/calendar Time keeping application

The 恩XP PCF8523 and PCF2123 are CMOS devices that combine a real-time clock (RTC) and a calendar. Optimized for low power consumption, they operate at a current of less than 100 nA with a 2.0 V power supply, and consume less than 0.2μW of power. The PCF8523 uses an I2C-bus serial interface while t

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恩XP

SPI Real time clock/calendar

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恩XP

Save power with small, ultra-efficient RTCs

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PHI

PHI

SPI Real time clock/calendar

The PCF2123 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power applications. Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.25 Mbit/s. An alarm and timer function is also available providing the possibility to generate a wake- Real time clock provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal\nLow backup current while running: typical 100 nA at VDD = 2.0 V and Tamb = 25 ℃\nResolution: seconds to years\nWatchdog functionality\nFreely programmable timer and alarm with interr;

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