MAX7219CNG+

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MAX7219CNG+

+BOM

IC DRVR 7 SEGMENT 8 DIGIT 24DIP

  • ManufacturerAnalog Devices Inc./Maxim Integrated

  • Mfr. Part #MAX7219CNG+

  • Datasheet MAX7219CNG+ DataSheet

  • In Stock5316

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Specifications

Attribute Value
Part Status Obsolete
Base Product Number MAX7219
Display Type LED
Configuration 7 Segment + DP
Interface 4-Wire Serial
Digits or Characters 8 Digits
Current - Supply 330 mA
Voltage - Supply 4V ~ 5.5V
Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole
Package 24-DIP (0.300", 7.62mm)
Supplier Device Package 24-PDIP
Packaging Tube

Overview

Description

The MAX7219CNG+ is an integrated circuit primarily used to control LED displays. It offers an efficient solution for driving up to eight 7-segment LED displays, an 8x8 dot matrix, or 64 individual LEDs. This chip simplifies the process of interfacing with microcontrollers by using a three-wire serial interface, reducing the number of pins required for control.
Key features of the MAX7219CNG+ include:
1. Serial Interface: It communicates via a simple 3-wire interface, compatible with SPI (Serial Peripheral Interface), making it easy to integrate with most microcontrollers.

2. Digit Control: The IC can control up to 8 digits, including the ability to adjust brightness independently for each digit.
3. Current Control: It features a built-in current control circuit, eliminating the need for external resistors, and ensuring consistent brightness across all LEDs.
4. Low Power Consumption: Designed to be energy-efficient, making it suitable for battery-powered applications.
5. Versatility: Suitable for various applications, including clocks, meters, and other digital displays.
Overall, the MAX7219CNG+ is a versatile and efficient solution for LED display control in electronic projects.

Equivalent

The MAX7219CNG+ is a serially interfaced, 8-digit LED display driver. Equivalent products include:
1. MAX7221 - Similar functionality with additional features like faster data rates.
2. TM1637 - Often used in simpler applications with 4-digit displays.
3. HT16K33 - Offers similar functionality with additional I2C interface.
4. AS1100 - Another alternative with 8-digit control capability.
These alternatives may have different pin configurations or additional features, so compatibility should be verified for specific applications.

Features

The MAX7219CNG+ is an integrated circuit designed for driving LED displays. Key features include:
1. Segment Control: It can control up to 64 individual LEDs or 8 digits of 7-segment displays, including a decimal point.

2. Serial Interface: Utilizes a simple 3-wire interface (DIN, CLK, LOAD) for communication, which reduces wiring complexity.
3. Intensity Control: Offers 16 levels of brightness control for adjustable display intensity.
4. Power Efficiency: Consumes low power with a range of 4V to 5.5V operating voltage.
5. Mode Flexibility: Supports both BCD and non-BCD display decoding.
6. Cascade Capability: Allows multiple MAX7219CNG+ to be cascaded for larger display systems.
7. Additional Features: Provides a shutdown mode to save power, and includes a self-contained LED test feature.
8. Packaging: Available in a 24-pin DIP (Dual Inline Package), simplifying installation on breadboards or PCBs.
These features make it suitable for applications like digital clocks, meters, and other numeric display systems.

Pinout

The MAX7219CNG+ is a common-cathode display driver IC with a 24-pin configuration. It is primarily used to drive LED displays, such as seven-segment displays, bar graph displays, or dot matrix displays. The key functions of the MAX7219 include:
1. Control and Drive: It can control up to 8 digits of 7-segment LED displays, or 64 individual LEDs, with a single IC.

2. Serial Interface: It uses a simple 3-wire SPI-compatible serial interface (DIN, LOAD/CS, CLK) to communicate with a microcontroller.
3. Digit and Segment Drivers: It has 8 digit drive lines and 8 segment drive lines.
4. Decode Mode: Offers both BCD code-B decoding for 7-segment displays and no-decode for custom shapes.
5. Intensity Control: Provides digital control over the brightness of the display.
6. Scan Limit: Allows control over the number of displayed digits.
7. Shutdown Mode: Includes a low-power shutdown mode to save power.
The MAX7219 is widely used due to its simplicity and efficiency in controlling multi-digit LED displays.

Manufacturer

The MAX7219CNG+ is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a company known for designing, developing, and manufacturing analog and mixed-signal integrated circuits. They focus on creating high-performance semiconductor products for a variety of applications, including power management, interface, and communications. By offering innovative solutions, Maxim Integrated addresses the needs of industries such as consumer electronics, automotive, communications, and healthcare. The company is well-regarded for its expertise in creating efficient and compact designs that facilitate the development of advanced technological systems.

Application

The MAX7219CNG+ is a serially interfaced, 8-digit LED display driver used primarily for controlling LED matrices and seven-segment numeric displays. Common application areas include:
1. Digital clocks: Used to drive the display for timekeeping.
2. Scoreboards: Ideal for displaying numerical scores.
3. Instrumentation panels: Displays numerical data in industrial or laboratory settings.
4. Consumer electronics: Used in devices like microwave ovens and other appliances for numerical displays.
5. DIY electronics projects: Hobbyists use it for custom LED displays.
6. Automotive dashboards: Can be used in prototypes or custom dashboards.
7. Vending machines: Displays item prices or other necessary information.
The MAX7219CNG+ simplifies complex display control, minimizing wiring and microcontroller pin usage.

Package

The MAX7219CNG+ is an 8-digit LED display driver IC packaged in a 24-pin Dual In-line Package (DIP). This packaging makes it suitable for through-hole mounting on printed circuit boards.

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