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PCA9534RGVRG4
Product Overview
Category: Integrated Circuit (IC)
Use: GPIO Expander
Characteristics: - 8-bit I/O expander for I2C-bus/SMBus applications - Low standby current consumption of 1 µA - 5 V tolerant inputs - Open-drain interrupt output - Active-low reset input - Noise filter on SCL/SDA inputs - Polarity inversion register - Internal power-on reset - No glitch on power-up - Supports hot insertion - Low standby current - ESD protection exceeds JESD 22, 2000-V human-body model (A114-A) - Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Package: VQFN-20
Essence: The PCA9534RGVRG4 is an 8-bit I/O expander designed for I2C-bus/SMBus applications. It provides additional general-purpose input/output (GPIO) pins that can be controlled via the I2C bus.
Packaging/Quantity: The PCA9534RGVRG4 is available in a VQFN-20 package and is typically sold in reels of 2500 units.
Specifications
- Supply Voltage Range: 2.3 V to 5.5 V
- Input Voltage Range: 0 V to VDD
- Output Voltage Range: 0 V to VDD
- Operating Temperature Range: -40°C to +85°C
- I2C Bus Frequency: 100 kHz, 400 kHz, or 1 MHz
Pin Configuration
The PCA9534RGVRG4 has a total of 20 pins. The pin configuration is as follows:
```
| | | 1 20 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______________| ```
Functional Features
- 8 programmable I/O pins
- Configurable as inputs or outputs
- Individual pin direction control
- Interrupt capability
- Programmable output polarity inversion
- Noise filter on SCL/SDA inputs
Advantages and Disadvantages
Advantages: - Low standby current consumption - 5 V tolerant inputs - Open-drain interrupt output - Supports hot insertion - ESD protection exceeds industry standards
Disadvantages: - Limited number of I/O pins (8)
Working Principles
The PCA9534RGVRG4 is controlled via the I2C bus, allowing for easy integration into various applications. It can be configured as either an input or output port by writing to the corresponding registers. The device supports interrupt generation based on changes in the input states.
Detailed Application Field Plans
The PCA9534RGVRG4 can be used in a wide range of applications, including but not limited to: - Industrial automation - Consumer electronics - Automotive systems - Internet of Things (IoT) devices - Robotics
Alternative Models
- PCA9534PW, PCA9534DBR, PCA9534BS, PCA9534DWR, PCA9534PWR, PCA9534RGVTG4, PCA9534RGVT, PCA9534RGVR, PCA9534RGV, PCA9534RG, PCA9534RGVRE4, PCA9534RGVE4, PCA9534RGVRE4G4, PCA9534RGVE4G4
These alternative models offer similar functionality and can be considered as substitutes for the PCA9534RGVRG4.
In conclusion, the PCA9534RGVRG4 is a versatile GPIO expander IC that provides additional I/O pins for various applications. Its low standby current consumption, 5 V tolerance, and interrupt capability make it suitable for a wide range of use cases. However, its limited number of I/O pins may be a drawback in certain scenarios.
Liste 10 perguntas e respostas comuns relacionadas à aplicação de PCA9534RGVRG4 em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of PCA9534RGVRG4:
Q: What is PCA9534RGVRG4? A: PCA9534RGVRG4 is a 16-bit I/O expander with an I2C interface, which allows for easy expansion of GPIO pins in various technical solutions.
Q: How does PCA9534RGVRG4 communicate with other devices? A: PCA9534RGVRG4 communicates using the I2C protocol, allowing it to connect with microcontrollers, sensors, and other I2C-compatible devices.
Q: Can PCA9534RGVRG4 be used to control LEDs? A: Yes, PCA9534RGVRG4 can be used to control LEDs by providing individual on/off control for each pin, making it suitable for LED matrix displays or indicator lights.
Q: What is the maximum current that PCA9534RGVRG4 can sink/source per pin? A: PCA9534RGVRG4 can sink/source up to 25mA per pin, making it capable of driving standard LEDs directly.
Q: Can PCA9534RGVRG4 be used to read inputs from buttons or switches? A: Yes, PCA9534RGVRG4 can be configured to read inputs from buttons or switches connected to its pins, allowing for easy integration of user input in a design.
Q: How many PCA9534RGVRG4 devices can be connected together on the same I2C bus? A: Multiple PCA9534RGVRG4 devices can be connected on the same I2C bus, as long as each device has a unique I2C address set using its address pins.
Q: Can PCA9534RGVRG4 operate at different voltage levels? A: PCA9534RGVRG4 operates at a wide voltage range of 2.3V to 5.5V, making it compatible with various microcontrollers and systems.
Q: Is PCA9534RGVRG4 capable of generating interrupts? A: No, PCA9534RGVRG4 does not have built-in interrupt functionality. However, it can be used in conjunction with an external interrupt controller if required.
Q: Can PCA9534RGVRG4 be used in automotive applications? A: Yes, PCA9534RGVRG4 is suitable for automotive applications as it can withstand harsh environments and has a temperature range of -40°C to +125°C.
Q: Are there any evaluation boards or development kits available for PCA9534RGVRG4? A: Yes, Texas Instruments provides evaluation boards and development kits for PCA9534RGVRG4, which can help in prototyping and testing its functionality.
Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.