MCP7940MT-I/MNY

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MCP7940MT-I/MNY

+BOM

IC RTC CLK/CALENDAR I2C 8TDFN

365 1일 품질 보증

7*24 영업 시간 서비스 보증

90-판매 후 1일 보증

정품 보증

사양

속성 가치
Part Status Active
Digi Key Programmable Not Verified
Type Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, SRAM
Memory Size 64B
Time Format HH:MM:SS (12/24 hr)
Date Format YY-MM-DD-dd
Interface I2C, 2-Wire Serial
Voltage - Supply 1.8V ~ 5.5V
Current - Timekeeping (Max) 1µA @ 5.5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-WFDFN Exposed Pad
Supplier Device Package 8-TDFN (2x3)
Base Product Number MCP7940

개요

Description

The MCP7940MT-I/MNY is a real-time clock (RTC) integrated circuit designed for timekeeping applications in microcontroller-based systems. It features an I2C interface, allowing easy communication with host devices. The MCP7940MT-I/MNY includes a built-in oscillator, battery backup capability, and an EEPROM for non-volatile storage, making it suitable for applications requiring time-stamped data retention during power outages.
Key features include:
- Timekeeping accuracy with a typical drift of ±3 minutes per year.
- 32 bytes of EEPROM memory for storing user data.
- Programmable alarm functions and a timer.
- Low power consumption, enabling long battery life.
- Temperature operating range from -40°C to +85°C.
This RTC is often used in gadgets, industrial applications, and consumer electronics where precise timekeeping and data retention are crucial. Its compact size and integrated functions make it a versatile choice for developers.

Equivalent

The MCP7940MT-I/MNY is a real-time clock (RTC) with EEPROM functionality. Equivalent products include the DS3231, DS1307, and MCP7941T. Each of these alternatives offers similar features such as timekeeping, alarm functions, and I2C interface, but may differ in precision, power consumption, or additional functionalities. Always check specific datasheets for detailed comparisons based on your application needs.

Features

The MCP7940MT-I/MNY is a real-time clock (RTC) with integrated EEPROM, providing accurate timekeeping and additional memory storage. Key features include:
1. Timekeeping: Maintains time and date with accuracy, supporting a calendar from 1900 to 2100.
2. I2C Interface: Communicates via an I2C bus, allowing easy integration with microcontrollers.
3. Battery Backup: Operates continuously during power outages with a backup battery connection.
4. Integrated EEPROM: Contains 64 bytes of non-volatile EEPROM memory for storing user data.
5. Oscillator: Features a low-power 32.768 kHz crystal oscillator.
6. Programmable Alarm: Supports programmable alarms and timer functions for various applications.
7. Temperature Compensation: Offers improved accuracy through temperature compensation.
8. Low Power Consumption: Designed for low power applications, making it suitable for battery-powered devices.
These features make the MCP7940MT-I/MNY ideal for applications requiring precise timekeeping and data retention.

Pinout

The MCP7940MT-I/MNY is a real-time clock (RTC) integrated circuit with a total of 8 pins. Here’s a brief overview of its pin functions:
1. VDD (Pin 1): Supply voltage input.
2. VSS (Pin 2): Ground reference.
3. SCL (Pin 3): Serial Clock Line for I2C communication.
4. SDA (Pin 4): Serial Data Line for I2C communication.
5. WP (Pin 5): Write Protect pin; used to prevent writing to the memory.
6. SQW (Pin 6): Square Wave output; can provide a frequency output.
7. BAT (Pin 7): Battery input for backup power, allowing the RTC to keep time during power loss.
8. 32K (Pin 8): 32kHz output for external use.
The MCP7940MT-I/MNY is widely used in applications requiring accurate timekeeping and low power consumption, making it suitable for battery-operated devices.

Manufacturer

The MCP7940MT-I/MNY is manufactured by Microchip Technology Inc., a leading American company specializing in semiconductor products. Founded in 1989, Microchip is known for its microcontrollers, microprocessors, memory chips, and a range of other integrated circuits. The company primarily focuses on providing a variety of embedded control solutions for various industries, including automotive, consumer electronics, and industrial applications.
Microchip's products are widely used in applications that require reliable and energy-efficient performance. The MCP7940MT-I/MNY specifically is a real-time clock (RTC) with integrated EEPROM, making it suitable for timekeeping applications in low-power devices. The company emphasizes innovation in embedded systems and offers extensive support and resources for design engineers, including development tools, software libraries, and training programs. With a strong commitment to quality and customer support, Microchip Technology Inc. has established itself as a key player in the semiconductor industry.

Application

The MCP7940MT-I/MNY is a real-time clock (RTC) with an I2C interface, commonly used in various applications such as:
1. Consumer Electronics: Digital watches, clocks, and home appliances for timekeeping.
2. Industrial Equipment: Monitoring and logging time-stamped data in systems like manufacturing tools.
3. Automotive Systems: Time tracking for vehicle diagnostics and logging events.
4. Medical Devices: Accurate timekeeping for patient monitoring devices.
5. Smart Home Devices: Scheduling functions for automation systems.
6. Data Logging: Time-stamped data collection in environmental and scientific research.
Its low power consumption makes it suitable for battery-operated devices.

Package

The MCP7940MT-I/MNY is packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package) format.

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