The MCP79410-I/SN is a product from Microchip Technology, a company specializing in microcontroller, mixed-signal, analog, and memory semiconductors. The MCP79410-I/SN is a real-time Clock (RTC) integrated circuit (IC) with various features, including timekeeping, alarms, and EEPROM storage.
Pin Function Specifications and Circuit Principle Instructions for MCP79410-I/SN
Package Information: The MCP79410-I/SN typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Pin Function Descriptions:The MCP79410-I/SN has 8 pins in its SOIC package. Here's the detailed description of each pin:
Pin Number Pin Name Pin Function Description 1 VDD Power supply for the IC. Connect to the positive voltage rail (typically 3.3V or 5V). 2 SCL Serial Clock Line (I2C interface ). The clock signal for communication with external devices using I2C protocol. 3 SDA Serial Data Line (I2C Interface). The data signal for communication with external devices using I2C protocol. 4 SQW/OUT Square Wave Output. This pin provides a square wave output, which can be configured for different frequencies (e.g., 32.768 kHz or 1Hz). 5 INT Interrupt Output. This pin is used to signal an interrupt based on time events, such as an alarm or threshold crossing. 6 OUT Output Pin. This can be used to drive an external component, typically as part of the timing or alarm functions. 7 RST Reset Pin. Used to reset the device to its initial state when it is pulled low. 8 VSS Ground Pin. Connect to the ground or 0V reference of the system. Pin Function Table (Detailed Description for All 8 Pins): Pin Number Pin Name Function Details 1 VDD Power Supply Provides power to the device. Must be connected to the system's power supply, typically either 3.3V or 5V. 2 SCL I2C Clock I2C clock signal, used in communication with the microcontroller or other I2C devices. 3 SDA I2C Data I2C data signal, used for sending and receiving data via the I2C protocol. 4 SQW/OUT Square Wave Output Provides a configurable square wave output. It can output 32.768 kHz or 1Hz, useful for timekeeping or clocking other systems. 5 INT Interrupt This pin signals an interrupt for various time events, such as alarm triggers or status changes. 6 OUT Output This pin is typically used for general output purposes, triggered by specific events like alarms. 7 RST Reset Used to reset the chip. When the pin is pulled low, the device resets its internal logic. 8 VSS Ground Ground pin, must be connected to the common ground of the system.20 Frequently Asked Questions (FAQ):
What is the operating voltage for the MCP79410-I/SN? The MCP79410-I/SN operates at a voltage range of 1.8V to 5.5V. What is the communication protocol used by the MCP79410-I/SN? The MCP79410-I/SN uses the I2C communication protocol for data transfer. How can I configure the square wave output on pin 4 (SQW/OUT)? The square wave output can be configured using I2C commands to set the output frequency (e.g., 32.768 kHz or 1Hz). Can the MCP79410-I/SN be used to generate alarms? Yes, the MCP79410-I/SN supports alarm functions. You can set up alarms via I2C communication. How do I reset the MCP79410-I/SN? The RST pin can be pulled low to reset the device. This will restart the internal timekeeping. What is the purpose of the SDA and SCL pins? The SDA and SCL pins are used for I2C communication. SDA carries data, and SCL carries the clock signal. Can I use the MCP79410-I/SN for timekeeping in battery-powered applications? Yes, the MCP79410-I/SN is ideal for battery-powered applications, as it has low power consumption and a built-in backup battery. What is the resolution of the real-time clock in the MCP79410-I/SN? The resolution of the RTC in the MCP79410-I/SN is 1 second. What are the options for the square wave frequency output? The MCP79410-I/SN provides a square wave output with selectable frequencies of 32.768 kHz or 1 Hz.How do I interface the MCP79410-I/SN with a microcontroller?
You can interface the MCP79410-I/SN with a microcontroller via the I2C interface. The microcontroller communicates using the SDA and SCL lines.What is the maximum I2C clock speed supported by the MCP79410-I/SN?
The MCP79410-I/SN supports I2C clock speeds of up to 400 kHz (Fast Mode).How accurate is the MCP79410-I/SN's real-time clock?
The real-time clock of the MCP79410-I/SN has an accuracy of ±20 ppm (parts per million).Can I use the MCP79410-I/SN with a 5V power supply?
Yes, the MCP79410-I/SN is compatible with both 3.3V and 5V power supplies.**What happens if the *VDD* pin is not connected to power?**
If the VDD pin is not connected to power, the device will not function, and the internal clock will stop.**What is the purpose of the *INT* pin?**
The INT pin is an interrupt output used to notify external devices about specific time-related events, such as alarm triggers.Is it possible to set the time on the MCP79410-I/SN using I2C?
Yes, the time and date can be set on the MCP79410-I/SN via I2C communication.Can the MCP79410-I/SN be used for non-volatile data storage?
Yes, the MCP79410-I/SN features a small EEPROM area for storing non-volatile data.**Can the *SQW/OUT* pin be used to output a signal to drive other devices?**
Yes, the SQW/OUT pin can be used to generate a clock signal for other devices, such as microcontrollers or clocked peripherals.What is the maximum operating temperature range of the MCP79410-I/SN?
The MCP79410-I/SN operates within the temperature range of -40°C to +85°C.What is the typical current consumption of the MCP79410-I/SN?
The typical current consumption is around 3 µA in the low-power mode.This covers the key specifications, pin functions, and frequently asked questions for the MCP79410-I/SN. Let me know if you need more information!