이미지는 참조용입니다.
MCP7940MT-I/MNY
+BOMIC RTC CLK/CALENDAR I2C 8TDFN
-
제조업체마이크로칩 기술
-
제조업체 부품 #MCP7940MT-I/MNY
-
재고2205
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
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
Features
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
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
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
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.