PCA9534DW
- Created at: 2023-11-09 04:44:36 , by WikiIC
- Updated at: 2023-11-09 04:44:36
- Views: 9
PCA9534DW
Product Overview
Category
The PCA9534DW belongs to the category of I/O expanders.
Use
It is used to provide a simple solution when additional I/Os are needed for a microcontroller.
Characteristics
- Low standby current
- 400 kHz I2C-bus interface
- Operating power supply voltage range of 2.3 V to 5.5 V
- Open-drain interrupt output
- Polarity inversion register
Package
The PCA9534DW is available in a TSSOP20 package.
Essence
The essence of PCA9534DW lies in its ability to expand the I/O capability of a microcontroller using the I2C bus.
Packaging/Quantity
The PCA9534DW is typically available in reels with 2500 units per reel.
Specifications
- Operating Voltage: 2.3 V to 5.5 V
- Number of I/Os: 8
- Interface: I2C
- Package Type: TSSOP20
Detailed Pin Configuration
- P00
- P01
- P02
- P03
- P04
- P05
- P06
- P07
- GND
- A0
- A1
- SDA
- SCL
- INT
- RESET
- VDD
- P00
- P01
- P02
- P03
Functional Features
- Input/Output port expander
- Interrupt output
- Polarity inversion register
- Low standby current
Advantages and Disadvantages
Advantages
- Simple I/O expansion
- Low standby current
- I2C-bus interface for easy communication
Disadvantages
- Limited number of I/Os (8)
Working Principles
The PCA9534DW works by providing additional I/O ports to a microcontroller through the I2C-bus interface. It allows the microcontroller to control and monitor the I/O pins without using additional GPIOs.
Detailed Application Field Plans
The PCA9534DW can be used in various applications such as: - LED dimming and fan control - Keypad interfacing - Sensor monitoring - Power sequencing
Detailed and Complete Alternative Models
Some alternative models to PCA9534DW include: - MCP23008 - MAX7311 - PCF8574
In conclusion, the PCA9534DW is a versatile I/O expander that provides a simple and efficient solution for expanding the I/O capabilities of a microcontroller. Its low standby current, I2C-bus interface, and compact package make it suitable for a wide range of applications.
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List 10 common questions and answers related to the application of PCA9534DW in technical solutions
What is PCA9534DW?
- PCA9534DW is an 8-bit I2C-bus and SMBus I/O expander designed for 2.3 V to 5.5 V VCC operation.
What are the key features of PCA9534DW?
- The key features include 8-bit remote I/O expansion, open-drain interrupt output, hardware address pin, and low standby current.
How can PCA9534DW be used in technical solutions?
- PCA9534DW can be used to provide general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.
What is the maximum frequency supported by PCA9534DW?
- The maximum frequency supported by PCA9534DW is 400 kHz.
Can PCA9534DW be used in automotive applications?
- Yes, PCA9534DW is suitable for automotive applications due to its wide operating voltage range and robust design.
What are the typical applications of PCA9534DW?
- Typical applications include industrial control systems, white goods, set-top boxes, and LED lighting control.
Does PCA9534DW support cascading multiple devices?
- Yes, PCA9534DW supports cascading multiple devices on the I2C bus for additional I/O expansion.
What is the power supply voltage range for PCA9534DW?
- The power supply voltage range for PCA9534DW is 2.3 V to 5.5 V.
Is PCA9534DW compatible with both I2C-bus and SMBus?
- Yes, PCA9534DW is compatible with both I2C-bus and SMBus interfaces.
Are there any evaluation kits available for PCA9534DW?
- Yes, evaluation kits are available to help users quickly evaluate the PCA9534DW in their technical solutions.
- https://chipmlcc.ru/product/details/texas-instruments/pca9534dw.html [PDF download, circuit diagram, pin configuration, detailed specifications, and more electronic component spot channels.]
- https://www.chipmlcc.com/product/details/texas-instruments/pca9534dw.html [PDF download, circuit diagram, pin configuration, detailed specifications, and more electronic component spot channels.]
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