X1228S14IZ-2.7A

Interface:	I²C, 2-Wire Serial
Base Part Number:	X1228
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	10µA ~ 20µA @ 2.7V ~ 5V
Voltage - Supply, Battery:	1.8 V ~ 5.5 V
Voltage - Supply:	2.7 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	--
Features:	Alarm, Leap Year, Supervisor, Watchdog Timer
Type:	Clock/Calendar
Part Status:	Obsolete
Packaging:	Tube

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X1228S14IZ-2.7A Application Field and Working Principle

X1228S14IZ-2.7A is a real time clock (RTC) that provides accurate timekeeping with a high level of power efficiency and performance. The device is mainly used in automotive applications, but also suitable for many industrial and consumer applications.The X1228S14IZ-2.7A is a highly accurate and low power real-time clock device with a backup timekeeping capability. It is designed to provide accurate timekeeping and datekeeping up to 10 years with a typical accuracy of 2ppm. The device has a small footprint, with a mechanical and electrical design that results in a minimal impact on system power consumption, making it ideal for automotive and other battery-powered applications.The device can be powered from multiple sources, with the user being able to select between a 5.0V supply rail and a 5.6V to 6.4V supply rail, depending on the application requirement. The device also has a battery backup input, allowing for RTC operation even if the main supply rail is off.The RTC operates in three modes of operation, i.e. normal mode, alternating mode, and periodic mode. In the normal mode, the RTC operates at an adjustable frequency, while in the alternating mode, the RTC switches back and forth between two frequency settings. The periodic mode allows the RTC to operate at a constant frequency, but with periodic stops, allowing the RTC to be used in a variety of timekeeping applications.The X1228S14IZ-2.7A also provides a variety of interrupt functions and outputs, including an output for interrupts, a watchdog timer, and two general purpose output signals. All of these features can be configured and programmed through the device’s control registers.The device also includes a temperature compensation feature, which helps compensate for the temperature-induced shift in frequency of the oscillator, ensuring that it performs accurately through a wide range of temperatures. The temperature compensation feature is adjustable via its own control register and can be programmed to match the needs of the application.The device includes built-in safety features, including a watchdog timer and an Internal Reset Generator (TRG), which prevents the oscillator from running out of range due to clock drift. The device also has a flexible clock architecture that can be configured to run in low-power, crystal-based mode or in low-cost ceramic mode.In summary, the X1228S14IZ-2.7A is an ideal choice for applications which require accurate timekeeping, low power consumption, and a wide range of clock configuration options. The device’s small footprint and support for a variety of power sources make it suitable for use in a range of automotive and other applications. Furthermore, the flexible clock architecture, safety features, and temperature compensation ensure that it can be used in a variety of different applications.

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