MAX7219CWG-T

Display Drivers Overview

The MAX7219CWG-T is a serial input/output common-cathode display driver manufactured by Analog Devices Inc./Maxim Integrated. It interfaces microprocessors to up to eight 7-segment numeric LED displays, bar-graph displays, or 64 individual LEDs. The device integrates a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM for data storage. It operates within a supply voltage range of 4V to 5.5V and supports a maximum power dissipation of 941 mW. The component utilizes a 10MHz serial interface and features slew-rate limited segment drivers to reduce electromagnetic interference.

Display Drivers Feature Summary

• Integrates an 8x8 static RAM for storing display data without requiring constant rewriting
• Features a 10MHz continuous serial interface compatible with standard microprocessor protocols
• Includes on-chip BCD decoder and multiplex scan circuitry for simplified control
• Provides digital and analog brightness control capabilities

Display Drivers Applications

• Bar-graph displays
• 7-segment numeric LED displays
• Industrial controllers
• Panel meters
• LED matrix displays

Display Drivers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as availability varies by region. Check current stock levels due to potential restricted supply conditions. Ensure the SOIC-24 package matches your PCB footprint requirements before finalizing procurement orders.

Display Drivers Selection Notes

Select this component for applications requiring direct microprocessor interfacing with minimal external logic. The integrated decoder simplifies design compared to non-decoded alternatives. Consider the SOIC-24 package for surface-mount assembly needs. Verify that the 4V to 5.5V operating voltage aligns with your system's power rails.

Display Drivers Part Context

This part belongs to the MAX7219 series of LED display drivers from Maxim Integrated, now part of Analog Devices. It serves as a compact solution for driving multiple LED segments or matrices. The CWG variant specifically denotes the wide SOIC package option within this product family, designed for surface-mount technology integration in various electronic devices.

Display Drivers Replacement Considerations

MAX7219CWG+ is a lead-free alternative within the same series. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement maintains the required serial interface protocol and current drive capabilities for your specific LED load.