DS17285SN-3+

The DS17285SN-3+ is a real time clock (RTC) specifically designed with CMOS technology for improved accuracy, low power dissipation and design flexibility. By integrating on-chip crystal and 32K 2-wire bus interface, the device features low external part count, reducing system costs and making it an ideal solution for dedicated real time clock applications. The DS17285SN-3+ has a built-in +5V supply regulator and a 32K 2-wire bus interface. The chip\'s 32K bit-programmable read/write register can be used to store any data that is 16 bytes in length, such as alarms, time and date, or any other information. Its high accuracy, low power dissipation, and wide temperature range make it ideal for a variety of applications, from industrial clocks and alarm systems to military navigation systems.

Application Fields

The DS17285SN-3+ is a convenient and easy-to-use device with a wide range of applications. It can be used for industrial systems and alarm systems for monitoring equipment run-times and for triggering alarms when maintenance is required. It can also be used for military navigation systems, providing accurate time and date readings, and for handheld and portable electronic products, such as netbooks, mobile phones, and PDAs, to provide accurate time and date data.

Working Principle

The DS17285SN-3+ real time clock uses a 32K 2-wire bus interface to communicate with a system processor. It contains an LS245 chip and an integrated quartz crystal oscillator. The quartz crystal is connected to the chip\'s oscillator pins to provide a precise frequency signal to the chip. The LS245 chip contains an internal 32k bit programmable read/write register, which can be used to store information, such as alarms, dates, and times. The chip also contains an analog-to-digital converter (ADC) for the conversion of analog data, such as analog clocks, into digital data. The ADC converts the analog data into digital data, which is then stored in the register for transmission over the 2-wire interface. The chip also contains a 32 - minute timer, which can be used to create precise trigger points for events, such as alarms.

The DS17285SN-3+ also contains a built-in 5V supply regulator that supplies power to the chip. The regulator is connected to a power source, such as a battery, and it supplies the power to the chip\'s various circuits. The chip is also equipped with an on-chip watchdog timer, which is used to verify the operation of the system at defined time intervals. The watchdog timer will reset the system if it detects that the system is not operating properly.

The DS17285SN-3+ is designed to be extremely efficient, consuming as little power as possible while providing reliable and accurate results. The chip provides a low-power mode, in which all internal logic functions are disabled except for the 2-wire bus interface and the real-time clock logic. This low power mode can be activated at any time, allowing the system to consume the least amount of power necessary for a given operation.

The DS17285SN-3+ real time clock is an excellent choice for applications requiring precise time and date data in a low power and cost effective package. The chip offers highly accurate time and date readings and is easy to program and configure. With its integrated quartz crystal and built-in power regulator, it is an ideal solution for dedicated real time clock applications.