BQ4802YDW

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The BQ4802YDW clock/timing real time clock application is a precision low power temperature-compensated real-time clock (RTC) with a diewire bus, offering superior performance and accuracy for embedded system applications. The chip is designed with an onboard 32.768 kHz crystal which provides the clock and calendar accuracy of ±2 PPM from 0°C to 70°C, and a power-fail detect circuit for battery-backed applications. The chip is capable of generating alarms and is compatible with alarms/timers from other manufacturers such as NXP and Atmel.

The BQ4802YDW provides a 32-bit serial synchronous bus interface with support for all standard bus protocol commands, including read/write bursts, register protection and bus write timeouts. It also supports a software-programmable crystal oscillator range of 8 to 12.8 MHz.

The BQ4802YDW is manufactured using advanced CMOS technology and incorporates a precision temperature-compensated oscillator (TCXO) and a temperature sensor to compensate for any temperature-related drift and provide a stable clock signal. The Xtal oscillator range can be set from 8 to 12.8 MHz and an adjustment to ±2 PPM at 25°C is provided. The device\'s power consumption is less than 1.2µA at 25°C.

The BQ4802YDW can be used in a variety of applications including automotive, consumer, industrial, instrumentation, medical and networking systems. The chip can be used for time-keeping and event-based applications such as scheduling, calendar, alarms, security and access control. Other applications include time-of-flight measurement, distance measurements and time synchronization.

The BQ4802YDW clock/timing real time clock application is a reliable and accurate solution for embedded systems with power requirements of less than 1.2µA at 25°C. The device is capable of providing a wide range of clock/timing solutions, such as scheduling, calendar, alarms, security and access control, as well as time-of-flight measurement and distance measurements. The device is also compatible with alarms/timers from other manufacturers, allowing it to be used in a variety of applications.

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