Overview
The PCA9534RGVR is an 8-bit I/O expander produced by Texas Instruments, designed to enhance the I/O capabilities of microcontrollers in various applications. This product falls under the category of I/O Expanders and is particularly suitable for systems requiring additional input/output pins. The PCA9534RGVR is targeted at embedded systems, IoT devices, and industrial automation applications, offering a cost-effective solution for expanding I/O resources. Its unique selling points include low power consumption, high reliability, and compatibility with I²C-bus protocols, making it a competitive choice in the market.
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 |
| I²C Bus Frequency | 400 | kHz | Standard mode |
| Operating Temperature | -40 to 85 | °C | Industrial-grade |
| Package | TSSOP-16 | - | Compact form factor |
| Quiescent Current | 1 | µA | Low power consumption |
| Interrupt Output | Yes | - | Supports interrupt-driven I/O |
| ESD Protection | ±4 | kV | HBM per JESD22-A114 |
Key Features
- 8-bit I/O Expansion: Provides additional I/O pins for microcontrollers, enabling flexible system design.
- Low Power Consumption: Ideal for battery-powered and energy-efficient applications.
- I²C Bus Compatibility: Supports standard I²C communication protocols for easy integration.
- Interrupt Functionality: Allows for efficient event-driven system operation.
- Wide Operating Voltage: Operates from 2.3V to 5.5V, suitable for various voltage levels.
- Industrial Temperature Range: Ensures reliable performance in harsh environments.
Applications
The PCA9534RGVR is widely used in applications requiring additional I/O pins, such as embedded systems, IoT devices, and industrial automation. In embedded systems, it enables the connection of multiple peripherals without overloading the microcontroller. For IoT devices, its low power consumption and compact size make it ideal for space-constrained designs. In industrial automation, its robust design and wide temperature range ensure reliable operation in demanding conditions. Additionally, it is used in consumer electronics, automotive systems, and medical devices for expanding I/O capabilities.
Q & A
1. What is the purpose of the PCA9534RGVR?
The PCA9534RGVR is an 8-bit I/O expander designed to provide additional input/output pins for microcontrollers in various applications.
2. What is the operating voltage range of the PCA9534RGVR?
The PCA9534RGVR operates from 2.3V to 5.5V, making it suitable for a wide range of systems.
3. Does the PCA9534RGVR support I²C communication?
Yes, the PCA9534RGVR supports I²C-bus communication with a frequency of up to 400 kHz.
4. Can the I/O ports be configured as inputs or outputs?
Yes, the 8 I/O ports can be individually configured as either inputs or outputs.
5. What is the package type of the PCA9534RGVR?
The PCA9534RGVR comes in a TSSOP-16 package, which is compact and suitable for space-constrained designs.
6. Is the PCA9534RGVR suitable for industrial applications?
Yes, the PCA9534RGVR has an industrial temperature range of -40°C to 85°C and robust ESD protection, making it ideal for industrial environments.
7. Does the PCA9534RGVR have an interrupt output?
Yes, it features an interrupt output that can be used for event-driven system operation.
8. What is the quiescent current of the PCA9534RGVR?
The quiescent current is 1 µA, ensuring low power consumption for energy-efficient applications.
9. Can the PCA9534RGVR be used in automotive systems?
Yes, its wide operating voltage and robust design make it suitable for automotive applications.
10. Where can I find the datasheet for the PCA9534RGVR?
The datasheet can be found on the official Texas Instruments website or authorized distributors like Digi-Key, Mouser, and Arrow Electronics.
