Overview
The PCA8574APW,112 is a remote 8-bit I/O expander for the I²C-bus, manufactured by NXP USA Inc. This device is part of NXP's extensive range of interface and GPIO solutions. It is designed to provide additional I/O ports to a microcontroller or other I²C-bus master device, enhancing the overall system's capability to interact with external peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of I/O Ports | 8 quasi-bidirectional ports |
| I²C-bus Interface Frequency | 400 kHz |
| Hardware Address Inputs | 3 |
| Interrupt Output | Yes |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Package Type | TSSOP16 |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- Eight quasi-bidirectional I/O ports, allowing for flexible input/output operations.
- 400 kHz I²C-bus interface for high-speed communication.
- Three hardware address inputs, enabling multiple devices to be connected on the same bus.
- Interrupt output, which can be used to signal changes in the I/O port states to the microcontroller.
- Operating voltage range of 2.3 V to 5.5 V, making it compatible with a wide range of systems.
- Compact TSSOP16 package, suitable for space-constrained designs.
- Compliance with PbFree, EU RoHS, Halogen Free, and REACH SVHC regulations, ensuring environmental sustainability.
Applications
- Industrial control systems: For expanding the I/O capabilities of microcontrollers in industrial automation and control systems.
- Consumer electronics: In devices such as set-top boxes, DVD players, and other consumer electronics where additional I/O ports are needed.
- Automotive systems: For use in automotive applications where reliable and high-speed I/O expansion is required.
- Medical devices: In medical equipment where precise and reliable I/O control is essential.
- Embedded systems: In various embedded systems where additional I/O ports are necessary to interact with peripherals.
Q & A
- What is the PCA8574APW,112 used for?
The PCA8574APW,112 is used as a remote 8-bit I/O expander for the I²C-bus, providing additional I/O ports to a microcontroller or other I²C-bus master device.
- What is the I²C-bus interface frequency of the PCA8574APW,112?
The I²C-bus interface frequency is 400 kHz.
- How many hardware address inputs does the PCA8574APW,112 have?
The device has three hardware address inputs.
- Does the PCA8574APW,112 have an interrupt output?
Yes, it has an interrupt output.
- What is the operating voltage range of the PCA8574APW,112?
The operating voltage range is from 2.3 V to 5.5 V.
- What package type is the PCA8574APW,112 available in?
The device is available in a TSSOP16 package.
- Is the PCA8574APW,112 environmentally compliant?
Yes, it is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- What are some common applications of the PCA8574APW,112?
Common applications include industrial control systems, consumer electronics, automotive systems, medical devices, and embedded systems.
- Can multiple PCA8574APW,112 devices be connected on the same I²C-bus?
Yes, multiple devices can be connected using the three hardware address inputs.
- Where can I find detailed specifications and datasheets for the PCA8574APW,112?
Detailed specifications and datasheets can be found on NXP's official website and other electronic component distributors like Digi-Key, Mouser, and Avnet.
