{"id":5146,"date":"2026-06-09T08:53:34","date_gmt":"2026-06-09T08:53:34","guid":{"rendered":"https:\/\/materialparts.com\/mcp23s17-e-ss\/"},"modified":"2026-06-09T08:53:34","modified_gmt":"2026-06-09T08:53:34","slug":"mcp23s17-e-ss","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/mcp23s17-e-ss\/","title":{"rendered":"MCP23S17-E\/SS"},"content":{"rendered":"

Productos<\/h2>\n

The MCP23S17-E\/SS from Microchip Technology is a 16-bit I\/O expander with SPI interface, providing 16 bidirectional I\/O pins with interrupt output capability for expanding GPIO on microcontrollers.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Fabricante<\/td>\nMicrochip Technology<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n16 (two 8-bit ports)<\/td>\n<\/tr>\n
Interface<\/td>\nSPI (up to 10 MHz)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n1.8V to 5.5V<\/td>\n<\/tr>\n
Current per I\/O<\/td>\n25 mA sink\/source<\/td>\n<\/tr>\n
Address Pins<\/td>\n3 (up to 8 devices on one bus)<\/td>\n<\/tr>\n
Interrupts<\/td>\n2 (INTA, INTB)<\/td>\n<\/tr>\n
Standby Current<\/td>\n1 \u00b5A max<\/td>\n<\/tr>\n
Paquete<\/td>\nSSOP-28<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 16-bit remote bidirectional I\/O<\/li>\n
  • High-speed SPI (10 MHz max)<\/li>\n
  • 3 hardware address pins (8 devices per bus)<\/li>\n
  • Configurable interrupt output pins<\/li>\n
  • Interrupt-on-change detection<\/li>\n
  • Polarity inversion register<\/li>\n
  • External reset input<\/li>\n
  • Low standby current: 1 \u00b5A<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • GPIO expansion for MCUs<\/li>\n
    • Keypad interfaces<\/li>\n
    • LCD display control<\/li>\n
    • Industrial I\/O modules<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP23S17-E\/SS from Microchip Technology is a 16-bit I\/O expander with SPI interface, providing 16 bidirectional I\/O pins with interrupt output capability for expanding GPIO on microcontrollers. Key Specifications Manufacturer Microchip Technology I\/O Pins 16 (two 8-bit ports) Interface SPI (up to 10 MHz) Supply Voltage 1.8V to 5.5V Current per I\/O 25 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[134],"class_list":["post-5146","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"16-bit I\/O expander, SPI 10MHz, 25mA I\/O, interrupt, SSOP-28","date_code":"","package_case":"SSOP-28 (10.2 x 5.3 mm)","in_stock":9547,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/20001952C.pdf","price":"$1.29 @ 1ku","product_introduction":"The MCP23S17-E\/SS from Microchip is a 16-bit general-purpose I\/O expander using an SPI interface (up to 10 MHz). It provides 16 bidirectional I\/O pins organized as two 8-bit ports (PORTA and PORTB), each configurable for input or output. Three address pins allow up to 8 devices on one SPI bus for 128 total I\/O pins. Two configurable interrupt pins (INTA, INTB) detect input changes independently or together. Each I\/O pin can sink or source 25 mA.","working_principle":"The MCP23S17 communicates via SPI using standard register read\/write protocol. Internal registers control I\/O direction (IODIRA\/B), output latches (OLATA\/B), input polarity (IPOLA\/B), and interrupt configuration. When configured as inputs, the interrupt-on-change feature compares pin states against stored values and asserts INTA\/INTB when changes are detected. The interrupt capture register saves pin state at the time of interrupt.","pin_description":"
      Pin Group<\/th>Name<\/th>Function<\/th><\/tr>
      1-8<\/td>GPB0-GPB7<\/td>Port B I\/O pins<\/td><\/tr>
      9-16<\/td>Control<\/td>VDD\/GND\/SPI\/CS\/INT\/RESET<\/td><\/tr>
      17-21<\/td>A0-A2\/NC<\/td>Address pins<\/td><\/tr>
      22-28<\/td>GPA0-GPA7<\/td>Port A I\/O pins<\/td><\/tr><\/table>","application_scenarios":"
      • Expanding MCU GPIO for LED\/button arrays<\/li>
      • Matrix keypad scanning<\/li>
      • LCD display interface<\/li>
      • Industrial digital I\/O modules<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
        Microchip<\/td>MCP23017-E\/SS<\/td>I2C version<\/td><\/tr>
        Microchip<\/td>MCP23S18-E\/ML<\/td>28-QFN package<\/td><\/tr>
        NXP<\/td>PCAL6524HW<\/td>24-bit I2C expander<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5146","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=5146"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5146\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5146"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}