{"id":2488,"date":"2026-05-21T01:19:59","date_gmt":"2026-05-21T01:19:59","guid":{"rendered":"https:\/\/materialparts.com\/max7219\/"},"modified":"2026-05-21T01:19:59","modified_gmt":"2026-05-21T01:19:59","slug":"max7219","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/max7219\/","title":{"rendered":"MAX7219"},"content":{"rendered":"

Productos<\/h2>\n

The MAX7219 from Analog Devices (Maxim Integrated) is a serially interfaced 8-digit LED display driver that interfaces microprocessors to 7-segment numeric LED displays. It includes BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and 8×8 static RAM in 24-pin DIP and SO packages.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Fabricante<\/td>\nAnalog Devices (Maxim)<\/td>\n<\/tr>\n
Tipo<\/td>\n8-Digit LED Display Driver<\/td>\n<\/tr>\n
Display Type<\/td>\nCommon-Cathode<\/td>\n<\/tr>\n
Number of Digits<\/td>\n8<\/td>\n<\/tr>\n
Serial Interface Speed<\/td>\n10MHz<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n4.0V to 5.5V<\/td>\n<\/tr>\n
Segment Drive Current<\/td>\n-40mA typ (set by RSET)<\/td>\n<\/tr>\n
Digit Drive Current<\/td>\n320mA sink<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n150uA<\/td>\n<\/tr>\n
Display Scan Rate<\/td>\n800Hz (8 digits)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0C to +70C (C grade), -40C to +85C (E grade)<\/td>\n<\/tr>\n
Paquete<\/td>\n24-DIP, 24-SOIC<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 10MHz serial interface<\/li>\n
  • Independent LED segment control<\/li>\n
  • Decode\/no-decode digit selection<\/li>\n
  • 150uA low-power shutdown (data retained)<\/li>\n
  • Digital and analog brightness control<\/li>\n
  • Display blanked on power-up<\/li>\n
  • Drive common-cathode LED displays<\/li>\n
  • Only one external resistor sets segment current<\/li>\n
  • Individual digit addressing without rewriting entire display<\/li>\n
  • 24-pin DIP and SO packages<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • 7-segment LED numeric displays<\/li>\n
    • Bar-graph displays<\/li>\n
    • LED matrix displays<\/li>\n
    • Industrial panel meters<\/li>\n
    • Point-of-sale terminals<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX7219 from Analog Devices (Maxim Integrated) is a serially interfaced 8-digit LED display driver that interfaces microprocessors to 7-segment numeric LED displays. It includes BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and 8×8 static RAM in 24-pin DIP and SO packages. Key Specifications Manufacturer Analog Devices (Maxim) Type 8-Digit […]<\/p>\n","protected":false},"author":2,"featured_media":2773,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,33],"tags":[],"chip_brand":[165],"class_list":["post-2488","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-led-driver-ics","chip_brand-adi"],"acf":{"brief_explanation":"8-digit serial LED display driver, BCD decoder, 10MHz SPI, common-cathode, 24-DIP\/SOIC","date_code":"","package_case":"24-PDIP \/ 24-SOIC Wide (0.3in)","in_stock":7250,"datasheet":"https:\/\/www.analog.com\/en\/products\/max7219.html","price":"$7.37 @ 1ku","product_introduction":"The Analog Devices MAX7219 is a compact serial input\/output common-cathode display driver that interfaces microprocessors to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. On-chip features include a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. A convenient 4-wire serial interface connects to all common microprocessors. Individual digits may be addressed and updated without rewriting the entire display. The device includes 150uA low-power shutdown mode, analog and digital brightness control, and a scan-limit register for 1 to 8 digit display.","working_principle":"The MAX7219 operates as a serially controlled LED display driver with four key subsystems: 1) Serial Interface: Data is clocked in via DIN on CLK rising edges as 16-bit words (8-bit address, 8-bit data). LOAD\/CS latches the data on its rising edge. Multiple devices can be daisy-chained through DOUT. 2) Decode Logic: The decode-mode register selects BCD code-B decoding or no-decode for each digit. BCD mode automatically maps numeric values to 7-segment patterns including hex characters. 3) Multiplex Scan: An internal oscillator drives the scanning of up to 8 digits at 800Hz, turning on one digit at a time while the corresponding segment data drives the anodes. The 8x8 static RAM maintains display data without processor intervention. 4) Brightness Control: An external RSET resistor sets maximum segment current. Digital brightness control uses a 16-step PWM duty cycle (1\/32 to 31\/32) for fine adjustment.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>DIN<\/td>Input<\/td>Serial data input<\/td><\/tr>
      2-3,5-8,10-11<\/td>DIG0-DIG7<\/td>Output<\/td>Digit drive lines (active low sink)<\/td><\/tr>
      4,9<\/td>GND<\/td>Ground<\/td>Ground (both pins must be connected)<\/td><\/tr>
      12<\/td>LOAD<\/td>Input<\/td>Load\/latch data (rising edge)<\/td><\/tr>
      13<\/td>CLK<\/td>Input<\/td>Serial clock (max 10MHz)<\/td><\/tr>
      14-17,20-23<\/td>SEG A-G, DP<\/td>Output<\/td>Segment drive outputs (source)<\/td><\/tr>
      18<\/td>ISET<\/td>Input<\/td>Current set (connect RSET to V+)<\/td><\/tr>
      19<\/td>V+<\/td>Power<\/td>Supply voltage (4.0-5.5V)<\/td><\/tr>
      24<\/td>DOUT<\/td>Output<\/td>Serial data output (for daisy-chain)<\/td><\/tr><\/table>","application_scenarios":"
      • 7-segment LED panel meter displays in industrial equipment<\/li>
      • 8x8 LED matrix displays for signage<\/li>
      • Multi-digit counter and timer displays<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI\/Maxim<\/td>MAX7221<\/td>24-DIP\/SOIC<\/td>SPI compatible, slew-rate limited<\/td><\/tr>
        ADI\/Maxim<\/td>MAX6951<\/td>16-QSOP<\/td>3V, with segment blinking<\/td><\/tr>
        TI<\/td>TLC59282DBQR<\/td>24-SOIC<\/td>16-channel LED driver<\/td><\/tr>
        ADI\/Maxim<\/td>MAX6950<\/td>16-QSOP<\/td>8-digit, SPI, with blinking<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=2488"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2488\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media\/2773"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=2488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=2488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=2488"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=2488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}