MAX313EUE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Real-Time Clock (RTC) with I2C Interface
• Characteristics:
  • Low power consumption
  • Small package size
  • High accuracy timekeeping
  • I2C interface for easy integration
• Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: MAX313EUE+T is a real-time clock IC designed for accurate timekeeping in various electronic devices.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2ppm (parts per million)
• Operating Temperature Range: -40°C to +85°C
• I2C Bus Frequency: Up to 400kHz
• Battery Backup Voltage: 1.3V to 5.5V

Pin Configuration

The MAX313EUE+T has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Power Supply --| SDA SCL |-- Pins 2 & 3: I2C Interface --| SQW RST |-- Pins 4 & 5: Square Wave Output and Reset --| X1 X2 |-- Pins 6 & 7: Crystal Oscillator Connections --| NC NC |-- Pins 8 & 9: No Connection --| VBAT VBAT|-- Pins 10 & 11: Battery Backup --| AGND AOUT|-- Pins 12 & 13: Analog Ground and Analog Output --| INT NC |-- Pins 14 & 15: Interrupt Output and No Connection |___________| ```

Functional Features

• Real-time clock with calendar functionality
• Battery backup for timekeeping during power loss
• I2C interface allows easy integration with microcontrollers
• Square wave output for timing applications
• Reset pin for system initialization
• Interrupt output for event-driven applications

Advantages and Disadvantages

Advantages: - High accuracy timekeeping - Low power consumption - Small package size for space-constrained designs - Easy integration with microcontrollers through the I2C interface

Disadvantages: - Limited number of I/O pins - Requires an external crystal oscillator for accurate timekeeping

Working Principles

The MAX313EUE+T utilizes a crystal oscillator to generate precise clock signals. It incorporates a real-time clock/calendar circuit that keeps track of time, date, and day of the week. The I2C interface allows communication with a microcontroller, enabling the setting and retrieval of time and date information. The battery backup ensures uninterrupted timekeeping even during power outages.

Detailed Application Field Plans

The MAX313EUE+T is commonly used in various electronic devices that require accurate timekeeping, such as:

1. Wearable devices: Smartwatches, fitness trackers, etc.
2. Home automation systems: Thermostats, security systems, etc.
3. Industrial control systems: Programmable logic controllers (PLCs), data loggers, etc.
4. Automotive applications: On-board computers, navigation systems, etc.
5. Consumer electronics: Digital cameras, audio/video recorders, etc.

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock IC with I2C Interface
2. PCF8563 - Real-Time Clock and Calendar IC with I2C-Bus Interface
3. MCP7940N - I2C Real-Time Clock/Calendar with SRAM

These alternative models offer similar functionality and can be considered as alternatives to the MAX313EUE+T.

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