Overview
The NXP PCA8575PW,112 is a remote 16-bit I/O expander designed to provide general purpose remote I/O expansion for various microcontroller families via the two-line bidirectional I2C-Bus. This device is part of the Interfaces > I2C, SPI, I3C Interface Devices > General Purpose I/O (GPIO) class and is particularly useful in applications such as industrial control systems and automotive electronics. It simplifies interface designs, reduces system complexity, and increases flexibility for controlling external devices.
Key Specifications
| Parameter | Value |
|---|---|
| Number of I/O | 16 |
| Interface | I²C |
| Interrupt Output | Yes |
| Output Type | Push-Pull |
| Current - Output Source/Sink | 100µA, 25mA |
| Clock Frequency | 400 kHz |
| Voltage - Supply | 2.3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
Key Features
- Latched outputs with 25mA sink capability for directly driving LEDs
- Active low open-drain interrupt output
- Eight programmable slave addresses using three address pins
- Internal power-on reset (POR)
- True push-pull outputs and open-drain outputs with internal pull-up resistors
- High-speed I2C interface with a maximum frequency of 400kHz
Applications
- Industrial control systems
- Automotive electronics
- Smart lighting systems
- Wireless sensor networks
- Automated manufacturing
- Keypad scanning
- LED drivers
- Relay drivers
- General purpose I/O expansion
Q & A
- What is the PCA8575PW,112 used for? The PCA8575PW,112 is used for general purpose remote I/O expansion for many microcontroller families via the I2C-Bus.
- What is the number of I/O pins on the PCA8575PW,112? The PCA8575PW,112 has 16 I/O pins.
- What is the interface type of the PCA8575PW,112? The interface type is I²C.
- Does the PCA8575PW,112 have an interrupt output? Yes, it has an active low open-drain interrupt output.
- What is the supply voltage range of the PCA8575PW,112? The supply voltage range is 2.3V to 5.5V.
- What is the operating temperature range of the PCA8575PW,112? The operating temperature range is -40°C to 85°C.
- What is the package type of the PCA8575PW,112? The package type is 24-TSSOP.
- Can the PCA8575PW,112 drive LEDs directly? Yes, it has latched outputs with 25mA sink capability for directly driving LEDs.
- Is the PCA8575PW,112 RoHS compliant? Yes, it is RoHS compliant.
- What are some common applications of the PCA8575PW,112? Common applications include industrial control systems, automotive electronics, smart lighting systems, and wireless sensor networks.
