MCP79412-I/SN

Interface:	I²C, 2-Wire Serial
Base Part Number:	MCP79412
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	1.2µA @ 3.3V
Voltage - Supply, Battery:	1.3 V ~ 5.5 V
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	64B, 1Kb
Features:	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
Type:	Clock/Calendar
Part Status:	Active
Packaging:	Tube

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MCP79412-I/SN Application Field and Working Principle

Clock/Timing - Real Time Clocks (RTC) are computer-controlled board integrated circuits designed to produce accurate timing information. The MCP79412-I/SN is one RTC device, specifically designed to provide high-precision real-time clock solutions. This device is a highly integrated and cost-effective solution, allowing electronics designers to easily build time-critical applications.RTCs can be used to time-stamp events and operations, as well as provide synchronization with external timing sources, such as GPS signals or cellular networks. The key functions of the MCP79412-I/SN include time and calendar management, memory access, power management and system monitoring. All these functionalities can be implemented by combining different integrated components.

MCP79412-I/SN Components

The device is composed of four main ICs – a low-power ragged-edge oscillator (LPO), a crystal oscillator (XO), a power-on reset (POR) and the basic MCP79412-I/SN IC. The LPO is a microcontroller with an onboard oscillator that is powered by a core voltage of 1.8V to 3.6V. This oscillator serves as the primary time source for the device, operating from 32kHz to 32MHz. The XO is used in conjunction with the LPO to provide a precise clock signal. The power-on reset (POR) is an integrated circuit that is used to reset the MCP79412-I/SN when the power supply is not stable. This is achieved by monitoring the power supply voltage. When the voltage drops below a set threshold the circuit triggers a reset signal that is sent to the MCP79412-I/SN. The basic MCP79412-I/SN is a real-time clock controller. It contains an oscillator circuit and registers that control internal functions. This device is designed to provide time accuracy down to ±2 seconds per day or 0.2 ppm.

MCP79412-I/SN Applications

The MCP79412-I/SN is highly versatile and can be used in a wide range of applications. This device is suitable for consumer products such as digital photo frames, alarm clocks or gaming consoles. It can also be used in industrial applications, as it has the capability to measure and control temperature, pressure and other relative variables.The device also supports a wide range of interfaces such as I2C and SPI. This can be used to connect the device to other circuits or systems, allowing for smarter and more efficient operation.

MCP79412-I/SN Working Principle

The MCP79412-I/SN is designed to be powered by a single 3V lithium battery. The device keeps track of the clock and calendar information thanks to its built-in oscillator.The oscillator is used to keep track of time, while the clock/calendar registers control when the time or date-related tasks are performed. This allows the device to keep track of the time accurately and without any manual intervention.The device is also designed to be able to operate in low power consumption mode. This can be achieved by setting the Alarm Output Select (AOS) bit to the “Low Power Mode”. In this mode, the device will enter into a low power sleep state when it is powered down, and will awaken when an alarm is triggered or when the associated I2C/SPI bus signals an active alarm.The device also has a timer function that can be used to accurately measure elapsed time and provide an interrupt to trigger defined events. This timer is programmable and can be set to run for a set amount of time and then generate an interrupt.Using all its components and functions, the MCP79412-I/SN can be used to implement a wide variety of applications. The device’s small size and low power consumption make it an ideal choice for consumer and industrial applications.

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