{"id":8459,"date":"2026-06-29T02:13:41","date_gmt":"2026-06-29T02:13:41","guid":{"rendered":"https:\/\/materialparts.com\/pcal6416ahf\/"},"modified":"2026-06-29T06:27:44","modified_gmt":"2026-06-29T06:27:44","slug":"pcal6416ahf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/pcal6416ahf\/","title":{"rendered":"PCAL6416AHF"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The PCAL6416AHF from NXP Semiconductors is a 16-bit I2C\/SMBus GPIO expander with Agile I\/O features in a 24-pin HWQFN (4×4 mm) package. It provides remote I\/O expansion via the I2C bus with dual-supply voltage ranging from 1.65V to 5.5V, enabling level translation between incompatible voltage domains. Enhanced features include programmable pull-up\/pull-down resistors, output drive strength control, input latching, and maskable interrupts.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
I\/O Channels<\/td>\n16 (2 ports x 8 bits)<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nI2C\/SMBus up to 400 kHz<\/td>\n<\/tr>\n
Supply Voltage (VDD I2C)<\/td>\n1.65V to 5.5V<\/td>\n<\/tr>\n
Supply Voltage (VDD P)<\/td>\n1.65V to 5.5V<\/td>\n<\/tr>\n
Sink Current per Bit<\/td>\n25 mA max<\/td>\n<\/tr>\n
Source Current per Bit<\/td>\n50 mA max<\/td>\n<\/tr>\n
I2C Addresses<\/td>\n2 (hardware selectable via ADDR pin)<\/td>\n<\/tr>\n
Interrupt Output<\/td>\nOpen-drain, maskable<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nHWQFN-24 (4 x 4 x 0.75 mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Agile I\/O: programmable output drive strength, latchable inputs<\/li>\n
  • Integrated pull-up and pull-down resistors per I\/O<\/li>\n
  • Built-in level translation between I2C bus and port sides<\/li>\n
  • Maskable interrupt with input latch for reliable event capture<\/li>\n
  • Programmable open-drain or push-pull output configuration<\/li>\n
  • Pin-to-pin compatible with PCA6416A, powers up with interrupts masked<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Smartphone and tablet I\/O expansion<\/li>\n
    • LED and button matrix control<\/li>\n
    • Sensor interface aggregation<\/li>\n
    • Industrial control I\/O modules<\/li>\n
    • Battery-powered portable device GPIO<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The PCAL6416AHF from NXP Semiconductors is a 16-bit I2C\/SMBus GPIO expander with Agile I\/O features in a 24-pin HWQFN (4×4 mm) package. It provides remote I\/O expansion via the I2C bus with dual-supply voltage ranging from 1.65V to 5.5V, enabling level translation between incompatible voltage domains. Enhanced features include programmable pull-up\/pull-down resistors, output […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[168],"class_list":["post-8459","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-nxp"],"acf":{"brief_explanation":"16-bit I2C GPIO expander with Agile I\/O, dual-supply 1.65-5.5V, level shift, HWQFN-24","date_code":"","package_case":"HWQFN-24 EP (4 x 4 x 0.75 mm)","in_stock":3824,"datasheet":"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/PCAL6416A.pdf","price":"$0.74 @ 1ku","product_introduction":"The NXP PCAL6416AHF is a 16-bit general-purpose I\/O expander that provides remote I\/O expansion for most microcontroller families via the I2C-bus interface. It features dual supply rails (VDD(I2C) and VDD(P)) ranging from 1.65V to 5.5V, enabling seamless level translation between the I2C bus side and the GPIO port side. As part of NXP's Agile I\/O family, it adds programmable output drive strength, latchable inputs, programmable pull-up\/pull-down resistors, maskable interrupts, and programmable open-drain or push-pull outputs beyond the standard PCA6416A feature set. The device is pin-to-pin compatible with PCA6416A but powers up with all I\/O interrupts masked to prevent spurious interrupts during board bring-up.","working_principle":"The PCAL6416AHF communicates with the host microcontroller via the I2C\/SMBus interface at up to 400 kHz. The dual-supply architecture separates VDD(I2C) which powers the interface side (SDA\/SCL) from VDD(P) which powers the GPIO port and core logic, enabling voltage level translation between the two domains without external components. The 16 I\/O pins are organized into two 8-bit ports (P0 and P1), each configurable as input or output via configuration registers. Input polarity inversion registers eliminate external logic gates. The Agile I\/O features include programmable pull-up\/pull-down resistors (eliminating discrete components), output drive strength selection, input latch mode that holds the state that triggered an interrupt until serviced, and interrupt masking per-channel to prevent unwanted interrupts.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VDDP<\/td>Port Supply Voltage (1.65-5.5V)<\/td><\/tr>
      2-9<\/td>P0_0 to P0_7<\/td>Port 0 I\/O Pins<\/td><\/tr>
      10<\/td>GND<\/td>Ground<\/td><\/tr>
      11-18<\/td>P1_0 to P1_7<\/td>Port 1 I\/O Pins<\/td><\/tr>
      19<\/td>INT<\/td>Interrupt Output (Open-Drain)<\/td><\/tr>
      20<\/td>ADDR<\/td>I2C Address Select<\/td><\/tr>
      21<\/td>RESET<\/td>Active-Low Reset Input<\/td><\/tr>
      22<\/td>SCL<\/td>I2C Clock Input<\/td><\/tr>
      23<\/td>SDA<\/td>I2C Data (Open-Drain)<\/td><\/tr>
      24<\/td>VDD(I2C)<\/td>I2C Interface Supply (1.65-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Mobile Device I\/O<\/b>: Expanding GPIO for buttons, LEDs, and sensors in smartphones\/tablets with 1.8V I2C to 3.3V port level translation<\/li>
      • Industrial I\/O Modules<\/b>: Remote I\/O expansion in PLC systems with maskable interrupts for selective event monitoring<\/li>
      • Sensor Aggregation<\/b>: Consolidating multiple sensor inputs with built-in pull-up\/pull-down resistors reducing BOM count<\/li>
      • LED Matrix Control<\/b>: 25 mA sink per bit directly drives LEDs without external driver transistors<\/li>
      • Battery-Powered Devices<\/b>: Low standby current with input latch ensures no missed events during sleep modes<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>I\/O<\/th>Agile I\/O<\/th>Package<\/th><\/tr>
        PCA6416AHF<\/td>NXP<\/td>16<\/td>No<\/td>HWQFN-24<\/td><\/tr>
        PCAL6524HE<\/td>NXP<\/td>24<\/td>Yes<\/td>HWQFN-28<\/td><\/tr>
        TCA6416APWR<\/td>TI<\/td>16<\/td>No<\/td>TSSOP-24<\/td><\/tr>
        SX1509I<\/td>Silicon Labs<\/td>16<\/td>LED drv<\/td>QFN-28<\/td><\/tr>
        MAX7317ATG+<\/td>ADI<\/td>10<\/td>No<\/td>TSSOP-24<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/8459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=8459"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/8459\/revisions"}],"predecessor-version":[{"id":8581,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/8459\/revisions\/8581"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=8459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=8459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=8459"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=8459"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}