Overview
The PCA9534DWG4 is a versatile I/O expander produced by Texas Instruments, designed to enhance the input/output capabilities of microcontrollers in embedded systems. This 16-pin device belongs to the category of I/O Expanders and is widely used in applications requiring additional I/O ports. It is particularly suited for industrial automation, consumer electronics, and IoT devices. The PCA9534DWG4 stands out for its low power consumption, high noise immunity, and ease of integration, making it a competitive choice for designers seeking reliable I/O expansion solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of I/O Ports | 8 | - | Configurable as input or output |
| Supply Voltage | 2.3 to 5.5 | V | Wide operating range |
| I/O Voltage Level | 1.65 to 5.5 | V | Compatible with various logic levels |
| Operating Temperature | -40 to 85 | °C | Suitable for industrial environments |
| Package | SOIC-16 | - | Surface-mount package |
| Interface | I2C | - | Supports up to 400 kHz |
| Current Consumption | 1 µA (standby) | µA | Low power consumption |
| Interrupt Output | Yes | - | Supports interrupt-driven operation |
Key Features
- 8 configurable I/O ports for flexible input/output operation.
- Wide voltage range (2.3V to 5.5V) ensures compatibility with various systems.
- Low power consumption (1 µA in standby) for energy-efficient designs.
- I2C interface supports high-speed communication up to 400 kHz.
- Interrupt output enables efficient event-driven operation.
- High noise immunity for reliable performance in noisy environments.
Applications
The PCA9534DWG4 is ideal for a wide range of applications, including:
- Industrial Automation: Used for controlling sensors, actuators, and other peripherals in industrial systems.
- Consumer Electronics: Enhances I/O capabilities in devices such as smart home appliances and gaming consoles.
- IoT Devices: Provides additional I/O ports for sensors and communication modules in IoT applications.
- Automotive Electronics: Supports control and monitoring functions in automotive systems.
Q & A
1. What is the operating voltage range of the PCA9534DWG4?
The operating voltage range is 2.3V to 5.5V.
2. How many I/O ports does the PCA9534DWG4 have?
It has 8 configurable I/O ports.
3. What interface does the PCA9534DWG4 use?
It uses the I2C interface, supporting up to 400 kHz.
4. Does the PCA9534DWG4 support interrupt functionality?
Yes, it has an interrupt output for event-driven operation.
5. What is the package type of the PCA9534DWG4?
It comes in an SOIC-16 surface-mount package.
6. Is the PCA9534DWG4 suitable for industrial environments?
Yes, it operates in temperatures ranging from -40°C to 85°C.
7. What is the standby current consumption of the PCA9534DWG4?
The standby current consumption is 1 µA.
8. Can the I/O ports operate at different voltage levels?
Yes, the I/O ports support voltage levels from 1.65V to 5.5V.
9. Is the PCA9534DWG4 compatible with 3.3V systems?
Yes, it is compatible with 3.3V systems due to its wide voltage range.
10. What are typical applications of the PCA9534DWG4?
Typical applications include industrial automation, consumer electronics, IoT devices, and automotive systems.
