Overview
The PCA9534D,518 is an I/O expander produced by NXP USA Inc., designed to provide remote I/O expansion for most microcontroller families via the I²C-bus interface. This product is ideal for applications requiring additional I/O ports, offering a simple and cost-effective solution. The PCA9534D,518 is particularly suited for embedded systems, industrial controls, and consumer electronics, where space and cost are critical considerations. Its unique selling points include low power consumption, high noise immunity, and ease of integration with existing I²C-bus systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.3 to 5.5 | V | Wide operating voltage range |
| Number of I/O Ports | 8 | - | Configurable as input or output |
| I²C-bus Frequency | 0 to 400 | kHz | Standard and Fast mode |
| Operating Temperature | -40 to +85 | °C | Industrial range |
| Package | SO16 | - | Surface mount |
| Low Power Consumption | 1 | µA | Typical standby current |
Key Features
- 8-bit I/O Expander: Provides 8 additional I/O ports that can be individually configured as inputs or outputs.
- I²C-bus Interface: Simplifies integration with existing microcontroller systems.
- Low Power Consumption: Ideal for battery-powered applications.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Wide Operating Voltage: Supports a range of 2.3V to 5.5V, making it versatile for various applications.
Applications
The PCA9534D,518 is widely used in applications requiring additional I/O ports, such as embedded systems, industrial controls, and consumer electronics. In industrial controls, it is used for interfacing with sensors and actuators. In consumer electronics, it is employed in devices like smart home systems and portable gadgets. Its compact size and low power consumption make it particularly suitable for space-constrained and battery-operated devices.
Q & A
1. What is the operating voltage range of the PCA9534D,518?
The PCA9534D,518 operates within a voltage range of 2.3V to 5.5V.
2. How many I/O ports does the PCA9534D,518 provide?
It provides 8 configurable I/O ports.
3. What is the maximum I²C-bus frequency supported?
It supports frequencies up to 400 kHz.
4. Is the PCA9534D,518 suitable for industrial environments?
Yes, it operates within an industrial temperature range of -40°C to +85°C.
5. What is the typical standby current?
The typical standby current is 1 µA.
6. Can the I/O ports be configured individually?
Yes, each of the 8 I/O ports can be individually configured as either input or output.
7. What package does the PCA9534D,518 come in?
It comes in an SO16 surface mount package.
8. Is the PCA9534D,518 suitable for battery-powered devices?
Yes, its low power consumption makes it ideal for battery-powered applications.
9. Does it support Fast mode I²C-bus?
Yes, it supports both Standard and Fast mode I²C-bus.
10. What are the typical applications of the PCA9534D,518?
Typical applications include embedded systems, industrial controls, and consumer electronics.
