MCP7940NT-I/SN

The MCP7940NT-I/SN is a low-power real-time clock/calendar (RTCC) with battery backup, manufactured by Microchip. It features I²C communication, 64-byte EEPROM, and timestamping for power failures. Key specifications include:
- Accuracy: ±2 minutes/year (typical).
- Voltage Range: 1.8V to 5.5V (operational), 1.3V to 5.5V (backup).
- Battery Backup: Supports external battery or supercapacitor.
- Alarms: Two programmable alarms with interrupt output.
- EEPROM: 64 bytes for user data.
- Package: 8-pin SOIC (150mil).
Ideal for embedded systems requiring timekeeping, the MCP7940NT-I/SN is commonly used in IoT, industrial, and consumer electronics. Its integrated EEPROM and power-fail timestamp enhance reliability.

The MCP7940NT-I/SN is a low-power real-time clock/calendar (RTCC) with battery backup and I²C interface. Key features:
- Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year (leap-year compensated).
- Battery Backup: Operates down to 1.3V for battery-backed timekeeping.
- I²C Interface: Supports 400kHz communication.
- Alarms: Two programmable alarms with interrupt output.
- SRAM: 64 bytes of non-volatile user memory.
- Power Management: Automatic switchover between VCC and backup supply.
- Oscillator: Integrated 32.768kHz crystal oscillator with trimming.
- Tamper Detection: Timestamp on power loss.
- Package: 8-pin SOIC.
Ideal for embedded systems requiring precise timekeeping with minimal power consumption.

The MCP7940NT-I/SN is an 8-pin (SOIC package) real-time clock (RTC) and calendar IC with battery backup. Key functions include:
- I²C Interface (pins 5-SDA, 6-SCL) for communication.
- Battery Backup (pin 4-VBAT) for timekeeping during power loss.
- Clock Output (pin 3-MFP) for alarms or square-wave generation.
- Power Supply (pin 8-VCC, pin 1-GND).
- Alarm Interrupt (pin 2-MFP) for event triggers.
It provides time/date tracking, timestamping, and 64-byte EEPROM storage.

The MCP7940NT-I/SN is manufactured by Microchip Technology Inc., a leading American semiconductor company specializing in microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989 and headquartered in Chandler, Arizona, Microchip is known for its embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. The company is recognized for its PIC microcontrollers and a broad portfolio of analog and connectivity products. The MCP7940NT-I/SN is part of its real-time clock (RTC) lineup, offering battery-backed timekeeping and SRAM. Microchip is a major player in the semiconductor market, known for reliability and innovation.

The MCP7940NT-I/SN is a real-time clock (RTC) and calendar IC with battery backup, widely used in:
- Consumer Electronics: Smartwatches, appliances, and digital cameras.
- Industrial Systems: Automation, data loggers, and sensors.
- Networking & IoT: Routers, smart meters, and edge devices.
- Automotive: Infotainment and telematics systems.
- Medical Devices: Portable monitors and diagnostic equipment.
It provides accurate timekeeping, timestamping, and alarms, making it ideal for applications requiring low power and reliability.

The MCP7940NT-I/SN comes in an 8-pin SOIC (150 mil) package. This surface-mount package is compact and widely used for integrated circuits, offering good thermal and electrical performance. The "SN" suffix denotes the SOIC package type.