Tutorial: PCAL6416AHF / PCAL6416APW

Adapts or transmits signals between devices.

PCAL6416AHF / PCAL6416APW

Tutorial / documentation

Communication

Quick documentation & first test preparation

  1. Identify component PCAL6416AHF and its package.
  2. Identify the protocol, logic levels and each pin’s function.
  3. Check required termination and pull-up/pull-down resistors.
  4. Consult the application circuit in the linked documentation before testing.

PCAL6416AHF

IO expander 16 GPIO, I2C 400kHz, Interrupt, 1.65 - 5.5V, HWQFN-24

  • IO expander 16 GPIO, I2C 400kHz, Interrupt, 1.65 - 5.5V, HWQFN-24
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

PCAL6416APW

IO expander 16 GPIO, I2C 400kHz, Interrupt, 1.65 - 5.5V, TSSOP-24

  • IO expander 16 GPIO, I2C 400kHz, Interrupt, 1.65 - 5.5V, TSSOP-24
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

Inputs and outputs must match the function described in the selected reference’s documentation.