Overview
The PCA9534DGVR from Texas Instruments is a low-voltage, 8-bit I/O expander designed for I2C-bus/SMBus applications. This versatile component is part of the PCA9534 series, which provides general-purpose remote I/O expansion for most microcontroller families. The PCA9534DGVR is particularly suitable for applications requiring additional I/O ports beyond those available on the host microcontroller. Its market positioning targets embedded systems, industrial automation, and consumer electronics, offering a cost-effective solution for expanding I/O capabilities. The product's unique selling points include its low-voltage operation, configurable I/O ports, and robust I2C-bus/SMBus compatibility, making it a competitive choice for designers seeking reliable I/O expansion.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 1.65 to 5.5 | V | Low-voltage operation |
| Number of I/O Ports | 8 | - | Configurable as input or output |
| I2C Bus Frequency | Up to 400 | kHz | Standard and fast modes supported |
| Operating Temperature | -40 to 85 | °C | Industrial-grade |
| Package | TSSOP-16 | - | Compact form factor |
| Interrupt Output | Yes | - | Supports interrupt-driven designs |
| ESD Protection | ±2000 | V | HBM per JESD22-A114 |
| Power Consumption | Low | - | Optimized for energy efficiency |
Key Features
- Low-voltage operation from 1.65V to 5.5V, making it compatible with a wide range of microcontrollers.
- Eight configurable I/O ports that can be independently set as inputs or outputs.
- Supports I2C-bus/SMBus communication with frequencies up to 400 kHz.
- Interrupt output pin for efficient event-driven designs.
- Robust ESD protection of ±2000V (HBM), ensuring reliability in harsh environments.
- Compact TSSOP-16 package, ideal for space-constrained applications.
Applications
The PCA9534DGVR is widely used in various industries due to its versatility and reliability. In industrial automation, it is employed for remote I/O expansion in control systems. In consumer electronics, it enhances the functionality of devices by providing additional I/O ports. The automotive industry utilizes it for in-vehicle control systems, benefiting from its robust design and low-voltage operation. Additionally, it is used in embedded systems for sensor interfacing and GPIO expansion, making it a go-to solution for designers seeking flexibility and performance.
Q & A
1. What is the operating voltage range of the PCA9534DGVR?
The PCA9534DGVR operates within a voltage range of 1.65V to 5.5V.
2. How many I/O ports does the PCA9534DGVR provide?
It provides 8 configurable I/O ports.
3. Does the PCA9534DGVR support I2C communication?
Yes, it supports I2C-bus/SMBus communication with frequencies up to 400 kHz.
4. What is the package type of the PCA9534DGVR?
It comes in a TSSOP-16 package.
5. Does the PCA9534DGVR have an interrupt output?
Yes, it includes an interrupt output pin for efficient event handling.
6. What is the ESD protection level of the PCA9534DGVR?
It offers ESD protection of ±2000V (HBM).
7. Can the I/O ports be configured as inputs and outputs?
Yes, each of the 8 I/O ports can be independently configured as an input or output.
8. What is the operating temperature range of the PCA9534DGVR?
It operates within a temperature range of -40°C to 85°C.
9. Is the PCA9534DGVR suitable for automotive applications?
Yes, its robust design and low-voltage operation make it suitable for automotive applications.
10. What are the typical applications of the PCA9534DGVR?
Typical applications include industrial automation, consumer electronics, automotive systems, and embedded systems.
