MAX697CPE+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX697CPE+ is a versatile integrated circuit primarily used for driving and controlling LED displays. It provides an efficient solution for applications requiring multiplexed LED control, such as alphanumeric displays, dot matrix displays, and panel meters.

Characteristics: - High integration and compact size - Low power consumption - Wide operating voltage range - Multiplexing capability - Serial interface for easy communication with microcontrollers - Built-in current limiting resistors for LEDs

Package: The MAX697CPE+ is available in a 16-pin plastic DIP (Dual In-line Package) format, which ensures ease of installation and compatibility with standard PCB designs.

Essence: This IC serves as a driver and controller for LED displays, enabling precise control over individual LEDs or groups of LEDs. It simplifies the design process by providing a comprehensive solution for LED multiplexing and control.

Packaging/Quantity: The MAX697CPE+ is typically packaged in reels or tubes, containing a quantity of 25 units per package.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Maximum Output Current: 80mA
• Number of Outputs: 16
• Serial Interface: SPI (Serial Peripheral Interface)
• Operating Temperature Range: -40°C to +85°C
• Package Type: 16-pin Plastic DIP

Pin Configuration

The MAX697CPE+ features the following pin configuration:

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| | --|1 VCC|-- Pin 1: Power Supply Voltage (VCC) --|2 D0|-- Pin 2: Serial Data Input (D0) --|3 D1|-- Pin 3: Serial Data Input (D1) --|4 D2|-- Pin 4: Serial Data Input (D2) --|5 D3|-- Pin 5: Serial Data Input (D3) --|6 D4|-- Pin 6: Serial Data Input (D4) --|7 D5|-- Pin 7: Serial Data Input (D5) --|8 D6|-- Pin 8: Serial Data Input (D6) --|9 D7|-- Pin 9: Serial Data Input (D7) --|10 CLK|-- Pin 10: Serial Clock Input (CLK) --|11 CS|-- Pin 11: Chip Select Input (CS) --|12 BLNK|-- Pin 12: Blank Input (BLNK) --|13 GND |-- Pin 13: Ground (GND) --|14 SEG15|-- Pin 14: Segment Output (SEG15) --|15 SEG14|-- Pin 15: Segment Output (SEG14) --|16 SEG13|-- Pin 16: Segment Output (SEG13) |___________| ```

Functional Features

• LED Control: The MAX697CPE+ provides individual control over each LED segment, allowing for versatile display patterns and animations.
• Multiplexing: It supports multiplexing of LEDs, enabling the control of a large number of LEDs using fewer pins on the microcontroller.
• Serial Interface: The IC features a serial interface (SPI) for easy communication with microcontrollers, reducing the complexity of the control circuitry.
• Current Limiting: Built-in current limiting resistors ensure safe operation of the LEDs by preventing excessive current flow.

Advantages and Disadvantages

Advantages: - Compact size and high integration simplify PCB design and reduce space requirements. - Low power consumption makes it suitable for battery-powered applications. - Wide operating voltage range allows compatibility with various power supply configurations. - Multiplexing capability reduces the number of pins required for LED control. - Serial interface enables easy integration with microcontrollers.

Disadvantages: - Limited maximum output current may restrict the use of high-power LEDs. - Lack of built-in display memory requires external memory for more complex display patterns.

Working Principles

The MAX697CPE+ operates by receiving serial data from a microcontroller through its SPI interface. The received data determines the state of each LED segment, allowing for individual control over their illumination. The IC utilizes multiplexing techniques to drive multiple LEDs using a limited number of pins on the microcontroller. Built-in current limiting resistors ensure safe operation of the LEDs by regulating the current flow.

Detailed Application Field Plans

The MAX697CPE+ finds application in various fields that require LED display control, including: 1. Alphanumeric displays in digital clocks, calculators, and industrial equipment. 2. Dot matrix displays in information boards, scoreboards, and advertising panels