PCAL9722 | 22-Bit SPI I/O Expander with Agile I/O Features | NXP Semiconductors

22-Bit SPI I/O Expander with Agile I/O Features

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Block Diagram

PCAL9722

PCAL9722 Block Diagram

Features

High Channel Count Expansion

  • Industry’s first 22-bit GPIO with SPI

Highly Configurable Agile I/O Features

  • Push-pull or open-drain outputs
  • Interrupt status registers
  • Four different output drive strengths
  • Enable and resistor selector for pull-up and pull-down resistors
  • Interrupt mask options

Robust Features

  • Schmitt trigger action allows slow input transition and better switching noise immunity
  • 5.5 V tolerant I/O ports and SPI bus pins
  • Noise filter on SPI inputs
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22

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N true 0 PSPPCAL9722en 2 Data Sheet Data Sheet t520 1 Selector Guide Selector Guide t528 1 en_US en_US en Data Sheet Data Sheet 1 1 1.1 English The PCAL9722 is a 22-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the SPI interface. 1682972344235717424479 PSP 791.6 KB None None documents None 1682972344235717424479 /docs/en/data-sheet/PCAL9722.pdf 791603 /docs/en/data-sheet/PCAL9722.pdf PCAL9722 documents N N 2023-05-01 PCAL9722: Ultra Low-Voltage Translating 22-Bit SPI I/O Expander with Agile I/O Features, Interrupt Output and Reset Data Sheet /docs/en/data-sheet/PCAL9722.pdf /docs/en/data-sheet/PCAL9722.pdf Data Sheet N 980000996212993340 2023-07-12 pdf N en May 1, 2023 980000996212993340 Data Sheet Y N PCAL9722: Ultra Low-Voltage Translating 22-Bit SPI I/O Expander with Agile I/O Features, Interrupt Output and Reset Data Sheet Selector Guide Selector Guide 1 2 0 Japanese A broad catalog of interface components for all your design needs 1464843144333730804447ja PSP 1.6 MB None None documents None 1464843144333730804447 /docs/ja/product-selector-guide/I2CSELECTORBROC.pdf 1626722 /docs/ja/product-selector-guide/I2CSELECTORBROC.pdf I2CSELECTORBROC documents N N 2017-07-03 NXP System Management I<sup>2</sup>C, I3C and SPI Selector Guide /docs/ja/product-selector-guide/I2CSELECTORBROC.pdf /docs/ja/product-selector-guide/I2CSELECTORBROC.pdf Selector Guide N 553557935274807777 2024-03-12 ja Jan 4, 2022 553557935274807777 Selector Guide Y N システム・マネジメントI2C, I3C, SPIセレクタ・ガイド 7 English A broad catalog of interface components for all your design needs. 1464843144333730804447 PSP 1.6 MB None None documents None 1464843144333730804447 /docs/en/product-selector-guide/I2CSELECTORBROC.pdf 1626722 /docs/en/product-selector-guide/I2CSELECTORBROC.pdf I2CSELECTORBROC documents N N 2017-07-03 NXP System Management I<sup>2</sup>C, I3C and SPI Selector Guide /docs/en/product-selector-guide/I2CSELECTORBROC.pdf /docs/en/product-selector-guide/I2CSELECTORBROC.pdf Selector Guide N 553557935274807777 2024-03-12 pdf N en Oct 26, 2023 553557935274807777 Selector Guide Y N NXP System Management I<sup>2</sup>C, I3C and SPI Selector Guide false 0 PCAL9722 downloads en true 1 Y PSP Y Y Data Sheet 1 /docs/en/data-sheet/PCAL9722.pdf 2023-05-01 1682972344235717424479 PSP 1 May 1, 2023 Data Sheet The PCAL9722 is a 22-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the SPI interface. None /docs/en/data-sheet/PCAL9722.pdf English documents 791603 None 980000996212993340 2023-07-12 N /docs/en/data-sheet/PCAL9722.pdf PCAL9722: Ultra Low-Voltage Translating 22-Bit SPI I/O Expander with Agile I/O Features, Interrupt Output and Reset Data Sheet /docs/en/data-sheet/PCAL9722.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1.1 N N PCAL9722: Ultra Low-Voltage Translating 22-Bit SPI I/O Expander with Agile I/O Features, Interrupt Output and Reset Data Sheet 791.6 KB PCAL9722 N 1682972344235717424479 Selector Guide 1 /docs/en/product-selector-guide/I2CSELECTORBROC.pdf 2017-07-03 1464843144333730804447 PSP 2 Oct 26, 2023 Selector Guide A broad catalog of interface components for all your design needs. None /docs/en/product-selector-guide/I2CSELECTORBROC.pdf English documents 1626722 None 553557935274807777 2024-03-12 N /docs/en/product-selector-guide/I2CSELECTORBROC.pdf NXP System Management I<sup>2</sup>C, I3C and SPI Selector Guide /docs/en/product-selector-guide/I2CSELECTORBROC.pdf documents 553557935274807777 Selector Guide N en None Y pdf 7 N N NXP System Management I<sup>2</sup>C, I3C and SPI Selector Guide 1.6 MB I2CSELECTORBROC N 1464843144333730804447 true Y Products

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