DS1321+

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DS1321+ is an advanced member of Maxim Integrated\'s DS13xx+ family of real-time clock/calendar devices. DS1321+ is a highly accurate, low-power clock/calendar with weekday, date, and time. It offers fast settling, improved accuracy, and low power consumption. Furthermore, the device operates in backup battery mode with automatic crystal compensation, eliminating the need for external crystal pc-boarding. The device\'s PCF85363A is a temperature compensated low power real-time clock IC for advanced applications. The device includes 256 bytes of battery-backed SRAM and 300 bits of EEPROM.

Application Field

The DS1321+ is suitable for several industrial, automotive, and consumer embedded applications, such as:

• PC motherboards and servers
• Radios
• Appliances
• Instrumentation
• Military equipment
• Interactive video game systems
• Positive temperature coefficient (PTC) heater controls
• Network time synchronization

The DS1321+ is also well-suited for use in applications that require high-precision timekeeping, because the device\'s accuracy and low power consumption help extend battery life.

Working Principle

The DS1321+ device is based on Maxim Integrated\'s proprietary Tosha™ technology, which utilizes a digital temperature sensor and oscillator, as well as a patented auto-compensation technique. This allows the device to track the temperature of its environment, and compensate accordingly, offering superior accuracy and stability compared to similar devices. The DS1321+ also features power-saving modes, which enable the device to switch between different clock output frequencies, helping to reduce power usage. The device is capable of operating in low power backup modes, allowing it to maintain accuracy when the main power supply is interrupted.

The DS1321+ is designed to be integrated into a wide range of applications, and supports a variety of bus protocols, including I2C and SPI. The device is easy to configure, and can be setup via its I2C or SPI Interface. Additionally, the device is pin-compatible with the popular PCF85363A, making it an easy drop-in replacement for existing designs. The device also includes an optional battery backup feature which allows it to maintain time and date information even when the main power supply is interrupted.

In conclusion, the DS1321+ is an advanced member of Maxim Integrated\'s DS13xx+ family of real-time clock/calendar devices. It provides superior accuracy and low power consumption for a variety of applications. The device supports a variety of bus protocols, making it easy to integrate into existing designs, and allows the user to configure it quickly and easily. Furthermore, the DS1321+ features an optional battery backup, allowing it to maintain accuracy even when the main power supply is interrupted.

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