NXP USA Inc. PCAL6416APW,118

The PCAL6416APW,118 is a 16-bit general-purpose I/O expander produced by NXP USA Inc. This device is designed to provide remote I/O expansion for most microcontroller families via the I2C-bus interface. It features built-in level shifting, allowing for seamless communication between incompatible I/O voltages, making it highly flexible in mixed signal environments. The PCAL6416A series, including the PCAL6416APW,118, supports a wide VDD range of 1.65 V to 5.5 V, enabling compatibility with next-generation low-voltage microprocessors and microcontrollers.

• Low-voltage translating capability for mixed signal environments
• Dual power rail with VDD(I2C-bus) and VDD(P) for flexible voltage handling
• Programmable pull-up and pull-down resistors to eliminate the need for discrete components
• Interrupt output, reset, and configuration registers for enhanced control
• Polarity inversion register to save external logic gates
• Power-on reset and maskable interrupts to prevent spurious interrupts at power-up

The PCAL6416APW,118 is suitable for a variety of applications, including:

• Industrial automation and control systems
• Automotive systems requiring I/O expansion and voltage translation
• Consumer electronics needing flexible I/O management
• Medical devices requiring precise I/O control and voltage translation
• IoT devices that need to interface with different voltage levels

1. What is the primary function of the PCAL6416APW,118?
   The primary function is to provide remote I/O expansion for microcontrollers via the I2C-bus interface.
2. What is the voltage range supported by the PCAL6416APW,118?
   The device supports a supply voltage range of 1.65 V to 5.5 V.
3. What package type is the PCAL6416APW,118 available in?
   The device is available in a TSSOP24 package.
4. Is the PCAL6416APW,118 PbFree and EU RoHS compliant?
   Yes, it is PbFree and EU RoHS compliant.
5. What is the operating temperature range of the PCAL6416APW,118?
   The operating temperature range is -40 °C to +85 °C.
6. Does the PCAL6416APW,118 have built-in level shifting capability?
   Yes, it has built-in level shifting for mixed signal environments.
7. Can the PCAL6416APW,118 be reset by the system master?
   Yes, the system master can reset the device by asserting a LOW in the RESET input.
8. What is the purpose of the polarity inversion register in the PCAL6416APW,118?
   The polarity inversion register allows the polarity of the input port to be inverted, saving external logic gates.
9. Does the PCAL6416APW,118 support programmable pull-up and pull-down resistors?
   Yes, it supports programmable pull-up and pull-down resistors.
10. What is the significance of the interrupt output in the PCAL6416APW,118?
    The interrupt output allows for notification of changes in the I/O ports, enhancing system responsiveness and control.