PCA9545ARGYR

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PCA9545ARGYR

+BOM

IC INTERFACE SPECIALIZED 20VQFN

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Applications Translating Switch
Interface I²C, SMBus
Voltage-Supply 2.3V ~ 5.5V
Package/Case 20-VFQFN Exposed Pad
SupplierDevicePackage 20-VQFN (3.5x4.5)

概要

Description

The PCA9545ARGYR is an I²C-bus switch with four bidirectional translating switch channels, allowing a master device to communicate with multiple I²C devices operating at different voltage levels. Manufactured by Texas Instruments, it is designed for applications requiring multiple I²C or SMBus masters to communicate with multiple slaves. This quad-channel device helps in reducing bus loading and extending the bus capacitance capability, effectively handling signal integrity issues in complex systems.
Key features include interrupt outputs, which inform the master of the need to address a particular slave, and individual channel selection through the I²C bus, allowing for flexible communication. With its low on-resistance switches, the PCA9545ARGYR ensures minimal signal distortion. It operates in a voltage range of 2.3V to 5.5V, making it suitable for a variety of system voltages. The device also supports hot-swapping and can be used in applications such as server management, industrial control, and consumer electronics to improve system scalability and reliability. Its small TSSOP package is suitable for compact designs.

Equivalent

The PCA9545ARGYR is an I2C bus switch with four channels. Equivalent products include:
1. TCA9545A by Texas Instruments – a similar 4-channel I2C switch.
2. PI4MSD5V9545A by Diodes Incorporated – another 4-channel I2C switch.
3. PCA9546A by NXP – offers similar functionality with 4 channels.
These alternatives provide similar functionality and can be used in comparable applications where I2C bus switching is required.

Features

The PCA9545ARGYR is a quad-channel I2C-bus switch with interrupt logic. Key features include:
1. Four-Channel Multiplexer: It allows one upstream I2C-bus master to communicate with multiple downstream I2C devices or buses.
2. Interrupt Logic: This feature is used for efficient handling of interrupt signals across multiple channels.
3. I2C-Bus Compatible: It supports both the I2C and SMBus protocols, making it suitable for a wide range of applications.
4. Individual Channel Control: Each channel can be individually enabled or disabled, providing flexibility in device communication.
5. Wide Voltage Range: Operates typically from 2.3V to 5.5V, supporting various power supply systems.
6. Low Standby Current: Economical in power consumption, important for battery-operated devices.
7. ESD Protection: Provides Electrostatic Discharge protection, enhancing reliability.
8. Compact Package: Available in small TSSOP and QFN packages, ideal for space-constrained applications.
These features make the PCA9545ARGYR suitable for complex I2C-bus configurations and applications that require multiple device connections and efficient interrupt management.

Pinout

The PCA9545ARGYR is a quad bidirectional translating I2C switch with reset function, manufactured by Texas Instruments. It is typically used to increase the number of I2C buses, allowing multiple I2C devices to communicate on the same bus without interference. This device has 24 pins.
Key functions and pin configuration include:
- VCC (Power Supply): Powers the chip.
- GND (Ground): Common ground connection.
- SDA/SCL (I2C Data and Clock Lines): For I2C communication.
- INT (Interrupt): Used for interrupt signals.
- RESET: Resets the I2C switch.
- Channel Control: Controls which I2C channels are active.
- I2C Channels (SDx/SCx): Four pairs of SDA and SCL lines (SD0-SD3/SC0-SC3) for the different I2C channels.
This device enables communication between a master device and multiple slave devices, allowing for efficient management of I2C traffic across different segments or devices.

Manufacturer

The PCA9545ARGYR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company specializing in the design and production of a broad range of analog and digital integrated circuits. Founded in 1930 and based in Dallas, Texas, TI is one of the largest and most established companies in the semiconductor industry. The company provides products and solutions for various applications, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for innovation and a focus on developing technologies that enhance the performance and efficiency of electronic devices.

Application

The PCA9545ARGYR is a quad-channel I2C bus switch with a control interface, used primarily in applications requiring multiple I2C or SMBus devices to be connected to a single I2C bus master. Key application areas include:
1. Multimedia Devices: Facilitates communication between processors and peripheral components.
2. Telecommunications: Manages multiple sensors and controllers in network infrastructure.
3. Computing Systems: Supports system management buses in servers and personal computers.
4. Consumer Electronics: Enables control of various components in smart devices.
5. Industrial Automation: Allows for the integration of various sensors and actuators in control systems.
These applications benefit from its ability to isolate and manage different I2C devices efficiently.

Package

The PCA9545ARGYR is a quad I2C bus switch with interrupt logic, available in a TSSOP-16 package.