MAX7221EWG+ - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX7221EWG+

Manufacturer

analog-devices

Introduction

The MAX7221EWG+ is a compact, serial input/output common-cathode display driver optimized for LED and display applications. It integrates a high-efficiency power management and display driver circuitry designed for managing seven-segment numeric LED displays.

Product Features and Performance

Supports 7 segment + DP configurations

Drives up to 8 digits of LED displays

Four-wire serial interface

Integrated multiplex scan circuitry

Selectable intensity levels

Digital and analog brightness control

Built-in shutdown mode to save power

Low-power operation

Product Advantages

Minimizes required IO pins on microcontrollers

Simple interfacing with microprocessors

Uniform brightness across displays

Supports cascading multiple devices for larger displays

Ensures longevity of LED displays through regulated current

Key Technical Parameters

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: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 24-SOIC

Quality and Safety Features

Built-in thermal shutdown protection

Overcurrent protection

Under-voltage lockout feature

Compatibility

Compatible with common microcontroller interfaces

Flexible interface options for various applications

Application Areas

Digital clocks and watches

Instrument panels

Portable meters

Home appliances

Healthcare devices

Product Lifecycle

Active status, indicating current production with no imminent discontinuation

Availability of replacements or upgrades as newer models are introduced

Several Key Reasons to Choose This Product

Low power consumption for battery-powered applications

High integration reduces the need for external components

Ease of programming and interfacing saves development time

Versatile application focus, from consumer electronics to industrial displays

Robust operation in extended temperature ranges suits a wide array of environments

Analog Devices' reputation for quality and reliability