Overview
The PCA8574AD,518 is a general-purpose remote I/O expansion IC produced by NXP USA Inc. This component is designed to provide additional I/O ports via the two-wire bidirectional I²C-bus, enhancing the I/O capabilities of microcontrollers and other ICs. Although the specific part number PCA8574AD,518 is no longer in production, it remains relevant for existing designs and maintenance of older systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 16-SOIC (Small Outline Integrated Circuit) |
| Number of I/O | 8 |
| Interface | I²C (two-wire bidirectional bus) |
| Supply Voltage | 2.3 V to 5.5 V |
| Operating Temperature | -40°C to 85°C |
| Clock Frequency | 400 kHz |
| Output Type | Push-Pull |
| Interrupt Output | Yes |
| Mounting Type | Surface Mount |
Key Features
- Provides 8-bit remote I/O expansion via the I²C-bus.
- Supports clock frequencies up to 400 kHz.
- Push-Pull output structure for direct drive of LEDs.
- Interrupt output capability.
- Low standby current.
- Operating voltage range from 2.3 V to 5.5 V.
- Operating temperature range from -40°C to 85°C.
Applications
- Microcontroller I/O expansion in various embedded systems.
- Industrial control systems requiring additional I/O ports.
- Automotive systems for sensor and actuator control.
- Consumer electronics for expanding I/O capabilities.
- Medical devices requiring precise I/O control.
Q & A
- What is the PCA8574AD,518 used for?
The PCA8574AD,518 is used for general-purpose remote I/O expansion via the two-wire bidirectional I²C-bus.
- What is the package type of the PCA8574AD,518?
The package type is 16-SOIC (Small Outline Integrated Circuit).
- How many I/O ports does the PCA8574AD,518 provide?
The PCA8574AD,518 provides 8 I/O ports.
- What is the operating voltage range of the PCA8574AD,518?
The operating voltage range is from 2.3 V to 5.5 V.
- What is the maximum clock frequency supported by the PCA8574AD,518?
The maximum clock frequency supported is 400 kHz.
- Does the PCA8574AD,518 have an interrupt output feature?
Yes, the PCA8574AD,518 has an interrupt output feature.
- What is the operating temperature range of the PCA8574AD,518?
The operating temperature range is from -40°C to 85°C.
- Is the PCA8574AD,518 still in production?
No, the PCA8574AD,518 is no longer in production.
- What are some common applications of the PCA8574AD,518?
Common applications include microcontroller I/O expansion, industrial control systems, automotive systems, consumer electronics, and medical devices.
- What type of output does the PCA8574AD,518 have?
The PCA8574AD,518 has a push-pull output structure.
