BQ4285S-SB2TR

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The Real Time Clock (RTC) technology, in general, is about the accurate timekeeping with clock-calendar functions and provides time and date information for practically any electronic system. In particular, the BQ4285S-SB2TR is a very reliable and low power CMOS real-time clock chipset with a full range of features.

The BQ4285S-SB2TR is particularly suited for RFID and smart card applications, as it allows the user to program clock/calendar functions through a serial bus. It allows the user to store a wide range of information, including user-defined clocks and alarms, security codes, usage logs, and messages. The real-time clock has up to a 48-bit static RAM, in addition to an extensive range of clock/timers and calendar features.

Applications of the BQ4285S-SB2TR can be found in virtually any electronic system, from TV’s, computers and cell phones, to networking systems, car navigation systems, and surveillance systems. Additionally, it can be used for controlling systems in industrial environments, such as industrial process automation, data recording, vehicle tracking and fleet management, and remote sensing.

The BQ4285S-SB2TR operates using a quartz crystal oscillator to control the frequency of its timekeeping. The crystal oscillator is responsible for maintaining the accuracy of the device’s timing. The oscillator generates a signal every second and sends it to the RTC’s integrated controller, which then sends an interrupt request to the host system in order to keep its clock synchronized. This ensures that the RTC will continue to keep accurate time, regardless of any power outages or system crashes.

The BQ4285S-SB2TR can be programmed through a serial bus with commands to select from a menu of functions, such as setting the operating time, date, time, time-of-day alarm, date-of-month alarm, alarms, interval measurements and user-defined calendar functions. The clock/timers and calendar functions in the BQ4285S-SB2TR offer a very precise timing capability with a wide range of resolution, allowing the user to adjust the frequency of the real-time clock to a variety of specific applications.

By providing reliable timekeeping, accurate clocks, and precise calendar functions, the BQ4285S-SB2TR real-time clock is a very valuable component in providing secure, reliable and precise timing to virtually any electronic system. As such, the BQ4285S-SB2TR is a valuable tool for secure and precise timekeeping in a wide range of applications, from consumer electronics to industrial process control.

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