Overview
The TCA9535MRGER, manufactured by Texas Instruments, is a 16-bit I/O expander designed for the two-wire bidirectional I²C bus or SMBus protocol. This device operates within a wide supply voltage range of 1.65V to 5.5V, making it versatile for various applications. The TCA9535MRGER is particularly useful in systems where additional I/O ports are needed, such as servers, routers, personal computers, and industrial automation. Its low standby current consumption and interrupt output feature enhance its efficiency and responsiveness in real-time applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 1.65 - 5.5 | V | |
| I/O Pins | 16 | ||
| Clock Frequency | 400 | kHz | I²C Fast Mode |
| Operating Temperature | -40 - +85 | °C | |
| Package | QFN-24 | ||
| Interrupt Output | Yes | Low-active, open-drain | |
| ESD Protection | 2000 (HBM), 1000 (CDM) | V |
Key Features
- Wide supply voltage range from 1.65V to 5.5V for versatile applications.
- Low standby current consumption enhances power efficiency.
- Open-drain interrupt output allows for efficient real-time response.
- Compatible with I²C and SMBus protocols, ensuring broad compatibility.
- High current drive capability for directly driving LEDs and other loads.
Applications
The TCA9535MRGER is widely used in various fields due to its robust features and flexibility. In servers and routers, it provides additional I/O ports for managing multiple peripherals. In personal computers and consumer electronics, it facilitates the control of additional devices. Industrial automation systems benefit from its ability to handle multiple inputs and outputs efficiently. Additionally, it is ideal for products with GPIO-limited processors, offering expanded I/O capabilities without significant redesign.
Q & A
1. What is the operating voltage range of the TCA9535MRGER?
The TCA9535MRGER operates within a voltage range of 1.65V to 5.5V.
2. How many I/O pins does the TCA9535MRGER have?
It has 16 I/O pins.
3. What is the maximum clock frequency supported by the TCA9535MRGER?
It supports a maximum clock frequency of 400 kHz in I²C Fast Mode.
4. Does the TCA9535MRGER have an interrupt output?
Yes, it features a low-active, open-drain interrupt output.
5. What is the operating temperature range of the TCA9535MRGER?
It operates within a temperature range of -40°C to +85°C.
6. What package does the TCA9535MRGER come in?
It is available in a QFN-24 package.
7. Is the TCA9535MRGER compatible with SMBus?
Yes, it is compatible with both I²C and SMBus protocols.
8. What are the ESD protection levels of the TCA9535MRGER?
It offers ESD protection of 2000V (HBM) and 1000V (CDM).
9. Can the TCA9535MRGER drive LEDs directly?
Yes, it has high current drive capability suitable for directly driving LEDs.
10. What is the typical application of the TCA9535MRGER in industrial automation?
It is used to manage multiple inputs and outputs efficiently in industrial automation systems.
