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AW9546TSR

AW9546 4-Channel I2C-bus Switch With Reset

Datasheet :
Preview - AW9546TSR - Datasheet
Ref.Price
  • 1-99￥6.69
  • 100-249￥5.49
  • 250-499￥4.42
  • 500-999￥3.48
  • 1000+￥2.68

Product details

Channel 4
Addresses 3
Reset √
Interrupt ×
I2C Frequency（kHZ) 400kHz
Temperature -40℃~125℃
Power Supply (Min) (V) 1.65V
Power Supply (Max) (V) 5.5V
Package (mm) TSSOP-16L
WBTSSOP-16L(1.2)
1 1-to-4 bidirectional translating switches 2 I2C bus and SMBus compatible 3 Active-low reset input 4 Three address pins, allowing up to eight devices on the I2C bus 5 Channel selection through an I2C bus, in any combination 6 Power up with all switch channels deselected 7 Low RON switches 8 400kHz I2C interface 9 Allows voltage-level translation between 1.8V, 2.5V, 3.3V and 5V buses 10 1.65V~5.5V power supply 11 5.5V tolerant inputs 12 No glitch on power up 13 Supports hot insertion 14 Low standby current 15 TSSOP-16L package
The AW9546 is an 4-channel, bidirectional translating switch that can be controlled through the I2C bus. The SCL/SDA upstream pair fans out to 4 downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. The device offers an active-low RESETN input which resets the state machine and allows the AW9546 to recover from a situation where one of the downstream I2C buses get stuck in a low state. The state machine of the device can also be reset by cycling the power supply, VCC, also known as a power-on reset (POR). Both the RESETN function and a POR cause all channels to be deselected and initializes the I2C/SMBus state machine. The pass-gate transistors of the AW9546 are constructed so that the VCC pin can be used to limit the maximum high voltage which is passed by the AW9546. Limiting the maximum high voltage allows the use of different bus voltages on each pair, so that 1.8V or 2.5V or 3.3V parts can communicate with 5V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5.5V tolerant.

Technical documentation
Type
Title
Date
Datasheet DS_AW9546_EN_V1.0   2024-07-16

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

Evaluation board

AW9545_9546_9548_EVB_V1.0 — AW9545_9546_9548_EVB_V1.0 is the EVB evaluation board for 1-4/1-8 channel bidirectional transfer switches.

EVB evaluation board for 1-4/1-8 channel bidirectional transfer switches.

View options
Software development

DRIVER OR LIBRARY

AW954X_Drivers — Android and other drivers for AW954X series

Android and other drivers for AW954X series, including example code, porting guide, debugging guide, etc.

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APPLICATION SOFTWARE&FRAMEWORK

AW95XX_GUI — AW95XX Tunning Tool

AW95XX GUI is a highly integrated and easy-to-use tool for product configuration and debugging. Intuitive interface and use-friendly operation can help customers shorten development time and complete system integration quickly.

View options
Hardware development

Evaluation board

AW9545_9546_9548_EVB_V1.0 — AW9545_9546_9548_EVB_V1.0 is the EVB evaluation board for 1-4/1-8 channel bidirectional transfer switches.

EVB evaluation board for 1-4/1-8 channel bidirectional transfer switches.

View options
Software development

DRIVER OR LIBRARY

AW954X_Drivers — Android and other drivers for AW954X series

Android and other drivers for AW954X series, including example code, porting guide, debugging guide, etc.

View options

APPLICATION SOFTWARE&FRAMEWORK

AW95XX_GUI — AW95XX Tunning Tool

AW95XX GUI is a highly integrated and easy-to-use tool for product configuration and debugging. Intuitive interface and use-friendly operation can help customers shorten development time and complete system integration quickly.

View options