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MCP7940 (10)
MCP7940 is available from Microchip Technology at Xecor. Designed for real-time clock (RTC) and calendar functionality, the MCP7940 offers key features such as alarm functionality, leap year compensation, square wave output, and integrated SRAM. Available in multiple package options including 8-TSSOP and 8-MSOP, it is ideal for applications in consumer electronics, industrial automation, and IoT devices. Whether used in smart home systems, wearables, or embedded systems, this series ensures reliable timekeeping, low power consumption, and high flexibility for demanding applications. Xecor is an authorized distributor for Microchip Technology. Please view our extensive selection of the MCP7940 series below.
| 部品番号 | 説明 | パッケージ | 在庫 | BOM に追加 |
|---|---|---|---|---|
| MCP7940N-I/SN | Real Time Clock with 64Byte NVRAM | SOIC-8 | 3,877 | |
| MCP7940NT-I/SN | Real-Time Clock/Calendar with SRAM and Battery Backup | SOIC-8 | 6,315 | |
| MCP7940N-I/MS | I2C Real Time Clock with General Purpose Registers and SRAM Storage | MSOP-8 | 9,635 | |
| MCP7940N-E/SN | Ideal for applications requiring precise time tracking, the MCP7940N-E/SN boasts a 400 kHz clock frequency and 64B of SRAM for storing data | SOIC-8 | 5,717 | |
| MCP7940MT-I/MNY | Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin TDFN EP T/R | TDFN-8 | 7,282 | |
| MCP7940MT-I/SN | Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin SOIC N T/R | SOIC-8 | 9,547 | |
| MCP7940NT-E/SN | Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup Automotive AEC-Q100 8-Pin SOIC N T/R | SOIC-8 | 9,006 | |
| MCP7940NT-I/MNY | Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup Automotive AEC-Q100 8-Pin TDFN EP T/R | SON-8 | 8,331 | |
| MCP7940NT-I/MS | Real-Time Clock/Calendar | MSOP-8 | 7,779 | |
| MCP7940M-I/SN | Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin SOIC N Tube | 8-SOIC | 6,015 |
Key Featrues
Integrated Alarm Functionality: The MCP7940 RTC IC includes an alarm feature, which allows users to set specific times for triggering events. This is particularly useful in applications like wake-up timers, scheduling tasks, or triggering system events, enhancing automation and reducing the need for external components.
Leap Year Compensation: The device automatically adjusts for leap years, ensuring accurate date and timekeeping over extended periods. This feature is critical for applications requiring long-term reliability, such as data logging, financial systems, or calendar-based scheduling.
Low Power Consumption: With a maximum timekeeping current of 1µA at 5.5V, the MCP7940 is highly efficient, making it ideal for battery-powered or energy-sensitive applications like IoT devices, wearables, or portable electronics.
Wide Operating Voltage Range (1.8V to 5.5V): The RTC IC supports a broad voltage range, enabling compatibility with various power sources and system designs. This versatility makes it suitable for diverse applications, from low-power embedded systems to industrial equipment.
Integrated SRAM and Square Wave Output: The inclusion of 64B of SRAM provides additional storage for user data, while the square wave output can be used for clock synchronization or driving external devices. These features enhance functionality and reduce the need for additional components, simplifying system design.
Leap Year Compensation: The device automatically adjusts for leap years, ensuring accurate date and timekeeping over extended periods. This feature is critical for applications requiring long-term reliability, such as data logging, financial systems, or calendar-based scheduling.
Low Power Consumption: With a maximum timekeeping current of 1µA at 5.5V, the MCP7940 is highly efficient, making it ideal for battery-powered or energy-sensitive applications like IoT devices, wearables, or portable electronics.
Wide Operating Voltage Range (1.8V to 5.5V): The RTC IC supports a broad voltage range, enabling compatibility with various power sources and system designs. This versatility makes it suitable for diverse applications, from low-power embedded systems to industrial equipment.
Integrated SRAM and Square Wave Output: The inclusion of 64B of SRAM provides additional storage for user data, while the square wave output can be used for clock synchronization or driving external devices. These features enhance functionality and reduce the need for additional components, simplifying system design.
Applications
Real-Time Clock for IoT Devices: The MCP7940 is perfect for providing accurate timekeeping in IoT devices, such as smart home systems, wearables, and environmental sensors. Its low current consumption (1µA @ 5.5V) ensures extended battery life, while its I²C interface allows seamless integration with microcontrollers, making it ideal for energy-efficient IoT applications.
Industrial Automation Systems: The MCP7940 can be used in industrial automation systems to maintain precise time synchronization across distributed control units. Its alarm and square wave output features enable scheduling of tasks and events, while its wide operating temperature range (-40°C to 85°C) ensures reliable performance in harsh industrial environments.
Medical Equipment Timing: In medical devices such as infusion pumps, patient monitors, and diagnostic equipment, the MCP7940 provides accurate timekeeping and scheduling capabilities. Its compact 8-MSOP package and low power consumption make it suitable for portable and battery-operated medical devices, ensuring reliable operation in critical healthcare applications.
Automotive Dashboard Clocks: The MCP7940 is ideal for automotive applications, such as dashboard clocks and infotainment systems. Its ability to operate over a wide voltage range (1.8V to 5.5V) and its robust design make it suitable for the demanding electrical and environmental conditions found in vehicles, ensuring accurate timekeeping even in extreme temperatures.
These applications highlight the versatility and reliability of the MCP7940 in various industries and use cases.
Industrial Automation Systems: The MCP7940 can be used in industrial automation systems to maintain precise time synchronization across distributed control units. Its alarm and square wave output features enable scheduling of tasks and events, while its wide operating temperature range (-40°C to 85°C) ensures reliable performance in harsh industrial environments.
Medical Equipment Timing: In medical devices such as infusion pumps, patient monitors, and diagnostic equipment, the MCP7940 provides accurate timekeeping and scheduling capabilities. Its compact 8-MSOP package and low power consumption make it suitable for portable and battery-operated medical devices, ensuring reliable operation in critical healthcare applications.
Automotive Dashboard Clocks: The MCP7940 is ideal for automotive applications, such as dashboard clocks and infotainment systems. Its ability to operate over a wide voltage range (1.8V to 5.5V) and its robust design make it suitable for the demanding electrical and environmental conditions found in vehicles, ensuring accurate timekeeping even in extreme temperatures.
These applications highlight the versatility and reliability of the MCP7940 in various industries and use cases.