MCP79411T-I/ST

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The MCP79411T-I/ST Real Time Clock (RTC) module is an important component in a wide range of embedded systems applications. RTCs are used to provide synchronization between digital systems, and are also used in applications such as industrial automation, automotive, automotive safety systems, communications, data logging, gaming, medical, wireless, and more.

The MCP79411T-I/ST is a highly integrated and cost-effective RTC module that offers on-chip simultaneous Real-Time Clock (RTC) and Timekeeping (TK), as well as I2C?bus programming. It offers a wide range of features optimized for power-sensitive applications.

Features of the MCP79411T-I/ST include a low operating voltage (1.8 to 5.5V), secure data storage, high accuracy oscillator, low power consumption (20µA standby mode), trickle charging, true zero-cross detection, and a wide temperature range (-40°C to +105°C). It is also compliant with the Open Firmware Initiative (OFI) and its I2C protocol offers standard Slave device address byte support. The MCP794T-I/ST has a 64 byte/block EEPROM and 8kB EEPROM (32 blocks/6kB in 5V mode).

In terms of application fields, the MCP79411T-I/ST can be used in a wide range of embedded systems where an accurate and reliable RTC is required. These applications include industrial automation, automotive and automotive safety systems, medical, communications, gaming, data logging, wireless, and more.

The working principle of the MCP79411T-I/ST is straightforward and involves the use of a crystal oscillator, a temperature sensor, an oscillator capacitor, and a real-time counter circuit. The crystal oscillator is used to generate a precise frequency, which is then fed into the temperature sensor and oscillator capacitor, where they are combined to form the clock signal. The clock signal is then fed into the real-time counter circuit, where it is divided into smaller signals based on the precision of the clock signal. These smaller signals are then used to accurately keep track of time, as well as store and retrieve data from the EEPROM. The accuracy of the RTC is key to its performance, and the accuracy rating of the MCP79411T-I/ST is 1 ppm (±1ppm).

In conclusion, the MCP79411T-I/ST Real Time Clock is a highly integrated, cost-effective RTC module that offers a wide range of features and applications for embedded systems. It has a low operating voltage, secure data storage, high accuracy oscillator, low power consumption, trickle charging, true zero-cross detection and a wide temperature range. For these reasons, the MCP79411T-I/ST is an ideal solution for any embedded system where an accurate and reliable RTC is required.

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