BQ4802YPWG4

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The BQ4802YPWG4, a real-time clock (RTC), can regulate periodic output signal in a wide range. It is used to accurately measure time and to provide an accurate time reference for digital electronics, time management systems, or distributed devices. This unit provides adequate time-of-day accuracy, clocking performance and cost-effectiveness.

The BQ4802YPWG4 has a wide range of applications. In general, this device is applied for precise timing for system maintenance, communication, medical and security applications like access control systems, power management, as well as accuracy required for product tracking. It is suitable for complex, multi interval scheduling in industrial, personal and retail applications.

The BQ4802YPWG4 is designed using a 32.768 kHz quartz crystal oscillator. The oscillator circuit provides a precision clock for RTC chip sets which offer a range of calendar and alarm functions for applications with the need for precise timing data. Its accuracy is reliable, with a stability of ± 2 parts -per million (PPM) or better. Other features include a temperature sensor and temperature compensation circuit, thereby enabling temperature compensation and power management functionality.

The BQ4802YPWG4 can be programmed to generate a periodic output signal of one second, or of any desired time period up to 1 second. It utilizes the RC compensation circuit to adjust the nominal 1 Hz output period to a precise 1 second period. The clock also features a MOSFET input/output buffer, which helps in switching other digital circuits while still maintaining low power consumption.

The BQ4802YPWG4 delivers a flawless accuracy of one second per month and a power consumption as low as 0.8 mW at 3.3V. Its calculation circuit detects moon phase for lunar calendar and data manipulation tasks. It also supports 32-bit counter and 8-bit counter for regulating more precise time frames. Last but not least, this unit supplies an exceptionally high range of working temperature, from -40 to +85°C, so it can cope with various environmental conditions.

In a summary, the BQ4802YPWG4 is an ideal real-time clock suitable for many timing applications that require precise time accuracy, such as access control, time management systems, and distributed devices. This unit ensures accurate timekeeping and cost-effectiveness, while consuming low power. It is equipped with advanced features, such as temperature sensor, temperature compensation circuit, a MOSFET buffered I/O circuit, and a variable clock period, making it a good choice for various complex timing applications.

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