Overview
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.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | TSSOP24 |
| Number of Bits | 16-bit |
| Interface | I2C-bus/SMBus |
| Supply Voltage Range (VDD) | 1.65 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| PbFree | Yes |
| EU RoHS Compliant | Yes |
| Halogen Free | Yes |
| REACH SVHC | Compliant |
Key Features
- 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
Applications
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
Q & A
- 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. - 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. - What package type is the PCAL6416APW,118 available in?
The device is available in a TSSOP24 package. - Is the PCAL6416APW,118 PbFree and EU RoHS compliant?
Yes, it is PbFree and EU RoHS compliant. - What is the operating temperature range of the PCAL6416APW,118?
The operating temperature range is -40 °C to +85 °C. - Does the PCAL6416APW,118 have built-in level shifting capability?
Yes, it has built-in level shifting for mixed signal environments. - 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. - 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. - Does the PCAL6416APW,118 support programmable pull-up and pull-down resistors?
Yes, it supports programmable pull-up and pull-down resistors. - 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.
