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PCA9534PWG4
Product Overview
Category: Integrated Circuit
Use: I/O Expander
Characteristics: Low-power, I2C-bus interface, 8-bit remote I/O expander for Fm+ I2C-bus with interrupt
Package: TSSOP-16
Essence: The PCA9534PWG4 is an 8-bit I/O expander for the two-line bidirectional bus (I2C) and designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.
Packaging/Quantity: Tape and Reel (2500 units per reel)
Specifications
- Operating Voltage: 2.3V to 5.5V
- Low Standby Current: 1 µA
- I2C-bus Interface: Compatible with SMBus standards
- Number of I/Os: 8
Detailed Pin Configuration
The PCA9534PWG4 has a total of 16 pins in a TSSOP package. The pin configuration is as follows: 1. P0 - I/O Port 0 2. P1 - I/O Port 1 3. P2 - I/O Port 2 4. P3 - I/O Port 3 5. P4 - I/O Port 4 6. P5 - I/O Port 5 7. P6 - I/O Port 6 8. P7 - I/O Port 7 9. INT - Interrupt Output 10. SDA - I2C-bus Serial Data 11. SCL - I2C-bus Serial Clock 12. A0 - Slave Address LSB 13. A1 - Slave Address MSB 14. GND - Ground 15. NC - No Connection 16. VCC - Supply Voltage
Functional Features
- 400 kHz Fast I2C-bus Interface
- Active-Low Reset Input
- Polarity Inversion Register
- Internal Power-On Reset
- Noise Filter on SCL/SDA Inputs
Advantages and Disadvantages
Advantages: - Low Standby Current - Compatibility with SMBus standards - Noise Filter for Enhanced Reliability
Disadvantages: - Limited number of I/O ports - Requires external pull-up resistors for I2C-bus interface
Working Principles
The PCA9534PWG4 operates by providing general-purpose remote I/O expansion for most microcontroller families through the I2C-bus interface. It allows the microcontroller to control the I/O pins remotely, enabling flexible and efficient I/O expansion.
Detailed Application Field Plans
The PCA9534PWG4 is widely used in various applications such as: - Industrial Automation - Consumer Electronics - Automotive Systems - Internet of Things (IoT) Devices - Robotics
Detailed and Complete Alternative Models
Some alternative models to the PCA9534PWG4 include: - MCP23008 - MAX7311 - PCF8574
In conclusion, the PCA9534PWG4 is a versatile I/O expander with low standby current and compatibility with SMBus standards, making it suitable for a wide range of applications in the field of embedded systems and electronics.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací PCA9534PWG4 v technických řešeních
What is PCA9534PWG4?
- PCA9534PWG4 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 PCA9534PWG4?
- The key features include 8-bit remote I/O port, open-drain outputs, polarity inversion register, and more.
How can PCA9534PWG4 be used in technical solutions?
- PCA9534PWG4 can be used to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface.
What are the typical applications of PCA9534PWG4?
- Typical applications include LED dimming control, pushbutton input expansion, and various other general-purpose I/O expansion applications.
What is the maximum frequency supported by PCA9534PWG4?
- The maximum frequency supported by PCA9534PWG4 is 400 kHz.
Can PCA9534PWG4 be cascaded to support more I/Os?
- Yes, multiple devices can be cascaded to support a larger number of I/Os.
What is the power supply range for PCA9534PWG4?
- The power supply range for PCA9534PWG4 is 2.3V to 5.5V.
Does PCA9534PWG4 support hardware addressing?
- Yes, PCA9534PWG4 supports hardware address pins for configuring its I2C address.
What is the package type for PCA9534PWG4?
- PCA9534PWG4 comes in a TSSOP package.
Is there any application note available for PCA9534PWG4?
- Yes, Texas Instruments provides an application note with detailed information on using PCA9534PWG4 in various applications.