MCP79400-I/SN

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The MCP79400-I/SN Real Time Clock (RTC) is a versatile, stand-alone battery-backed device that provides power-on, power-off and time-keeping functions. With its supported time and calendar functions, along with powerful operational features, it makes the MCP79400-I/SN an ideal choice for applications that require accurate timekeeping and power-cycling for various electronic products.

The MCP79400-I/SN can be used in a wide range of applications, from smart home control and IoT gadgets to embedded systems such as cellular phones and personal computers. The versatility of the device also allows it to be used in many other applications, from gaming consoles to medical equipment.

The MCP79400-I/SN is a 32-bit synchronous device with a built-in oscillator circuit, allowing it to operate autonomously with an external power source and up time of up to 100 years when using the optional back-up battery. Additionally, it has the option of being connected to an external crystal oscillator or a GPS receiver, allowing it to be used in timing applications requiring higher accuracy or even global time synchronization.

The device runs on a 3.3V to 5V DC supply and consumes low power, with a maximum power consumption of 100µA with OVC and the oscillator on and 500µA with both oscillators and the NVSRAM on. The MCP79400-I/SN also includes two 128-bit SRAM non-volatile memories, allowing it to store up to four time slots and five alarms, as well as different time and date programs, such as monthly, daily and annual reminders.

The MCP79400-I/SN provides a variety of different operating modes, each designed to address different application requirements. The device has a total of six different operating modes and can be switched between them with a single pin. Additionally, it is configured using an I2C interface. The modes include direct access to timekeeping, power control, time setting, and automatized timekeeping.

Direct access mode allows for setting the time and date manually and setting alarms. The power control mode can be used to power on and off the device through externally supplied voltage, which allows the user to control the device from remote locations. The time setting mode allows for setting complex and periodic timed events, such as daily, monthly and yearly reminders. Lastly, automatized timekeeping mode simplifies routine timekeeping functions, such as providing the current time and automatically setting alarms.

In summary, the MCP79400-I/SN is an ideal solution for a wide variety of timing and power management applications, thanks to its versatility and range of operating modes. It is a cost-effective and reliable device that can provide reliable timekeeping and power control functions with minimal power consumption. It is perfect for projects that require accurate timekeeping and power cycling.

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