Overview
The PCA8574PW,118 is a remote 8-bit I/O expander designed by NXP USA Inc. This component is part of the PCA8574/74A series and is intended for use in various applications requiring additional I/O ports. It features an I²C-bus interface, making it compatible with a wide range of microcontrollers and other I²C devices. The device is particularly useful in scenarios where the number of I/O ports needs to be expanded without adding complexity to the main system.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | TSSOP16 |
| Number of I/O Ports | 8 |
| I²C-bus Interface Frequency | 400 kHz |
| Hardware Address Inputs | 3 |
| Interrupt Output | Yes |
| Port Type | Quasi-bidirectional |
| PbFree | Yes |
| EU RoHS Compliant | Yes |
| Halogen Free | Yes |
| REACH SVHC Compliant | Yes |
Key Features
- 8 quasi-bidirectional I/O ports
- 400 kHz I²C-bus interface
- Three hardware address inputs allowing up to 8 devices on the same bus
- Interrupt output for signaling changes in the I/O port states
- Low standby current
- PbFree, EU RoHS, and Halogen Free compliant
Applications
The PCA8574PW,118 is suitable for a variety of applications, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Any system requiring I/O port expansion with minimal additional complexity
Q & A
- What is the PCA8574PW,118 used for?
The PCA8574PW,118 is used as a remote 8-bit I/O expander to add additional I/O ports to a system via an I²C-bus interface. - What is the package type of the PCA8574PW,118?
The package type is TSSOP16. - How many I/O ports does the PCA8574PW,118 have?
The device has 8 quasi-bidirectional I/O ports. - What is the frequency of the I²C-bus interface?
The I²C-bus interface operates at 400 kHz. - Does the PCA8574PW,118 have an interrupt output?
Yes, it has an interrupt output for signaling changes in the I/O port states. - Is the PCA8574PW,118 PbFree and EU RoHS compliant?
Yes, it is PbFree and EU RoHS compliant. - How many hardware address inputs does the PCA8574PW,118 have?
The device has three hardware address inputs. - What is the standby current of the PCA8574PW,118?
The device has a low standby current. - Is the PCA8574PW,118 Halogen Free?
Yes, it is Halogen Free. - What are some common applications of the PCA8574PW,118?
Common applications include industrial control systems, automotive systems, consumer electronics, and medical devices.
