Overview
The PCA9545ARGYRG4 is a 4-channel, bidirectional translating switch interface IC produced by Texas Instruments. This device is designed to support multiple I2C/SMBus interfaces, allowing up to 8 bus masters to be connected to a single bus slave. It is particularly useful in applications requiring high-speed data transfer, low power consumption, and a small form factor. The PCA9545ARGYRG4 is packaged in a 20-VQFN (3.5x4.5) exposed pad package, making it suitable for a wide range of applications including automotive, industrial control, medical devices, and consumer electronics.
Key Specifications
| Feature | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | PCA9545ARGYRG4 |
| Package | 20-VQFN (3.5x4.5) Exposed Pad |
| Pin Count | 20 |
| Interface | I2C, SMBus |
| Voltage - Supply | 2.3 V ~ 5.5 V |
| Operating Temperature Range | -40 to 85°C |
| Channel Width | 4 |
| Simultaneously Active Channels | 1 to 4 |
| Special Features | Interrupt Output, Reset Input, 5V Tolerant I/O |
| fSCLK(Max) | 0.4 MHz |
| tpd max | 1 ns |
| RoHS Status | Compliant |
Key Features
- Multiple I2C/SMBus interfaces support
- Up to 8 bus masters can be connected to a single bus slave
- High-speed data transfer capability (supports Standard-Mode and Fast-Mode operation)
- Low power consumption design
- Small form factor package (20-VQFN)
- Four active-low interrupt inputs and one active-low interrupt output
- Active-low RESET input for state machine reset
- 5V tolerant I/O terminals
Applications
- Automotive electronics
- Industrial control systems
- Medical devices
- Consumer electronics
- Aerospace and defense applications
Q & A
- What is the PCA9545ARGYRG4 used for?
The PCA9545ARGYRG4 is a 4-channel, bidirectional translating switch interface IC used to connect multiple I2C/SMBus interfaces, allowing up to 8 bus masters to be connected to a single bus slave.
- What is the package type of the PCA9545ARGYRG4?
The PCA9545ARGYRG4 is packaged in a 20-VQFN (3.5x4.5) exposed pad package.
- What are the voltage supply ranges for the PCA9545ARGYRG4?
The voltage supply range for the PCA9545ARGYRG4 is from 2.3 V to 5.5 V.
- What are the special features of the PCA9545ARGYRG4?
The special features include interrupt output, reset input, and 5V tolerant I/O terminals.
- What is the maximum clock frequency supported by the PCA9545ARGYRG4?
The PCA9545ARGYRG4 supports a maximum clock frequency of 0.4 MHz.
- Is the PCA9545ARGYRG4 RoHS compliant?
- What is the operating temperature range of the PCA9545ARGYRG4?
The operating temperature range is from -40°C to 85°C.
- How many channels can be simultaneously active on the PCA9545ARGYRG4?
1 to 4 channels can be simultaneously active.
- What types of applications is the PCA9545ARGYRG4 suitable for?
The PCA9545ARGYRG4 is suitable for automotive, industrial control, medical devices, consumer electronics, and aerospace and defense applications.
- Does the PCA9545ARGYRG4 support power-on reset (POR)?
