I2C / IIC Multiplexer 8-channel module (TCA9548A/PCA9548A)

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I2C Multiplexer: PCA9548A

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The TCA9548A/ PCA9548A device has eight bidirectional translating switches that can be controlled through the I2C bus. The SCL/SDA upstream pair fans out to eight 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. These downstream channels can be used to resolve I2C slave address conflicts.

Technical Specifications:

·         PCA9548A:
Supply voltage (max) (V): 5.5
Supply voltage (min) (V): 2.3

·         TCA9548A:
Supply voltage (max) (V): 5.5
Supply voltage (min) (V): 1.65

·         Addresses: 8

·         Features: Reset pin

·         Rating: Catalog

·         Frequency (max) (MHz): 0.4

·         Operating Temperature range (°C): -40 to 85

·         Number of channels: 8

·         1-to-8 Bidirectional translating switches

·         I2C Bus and SMBus compatible

·         Active-low reset input

·         Three address pins, allowing up to eight TCA9548A devices on the I2C bus

·         Channel selection through an I2C Bus, in any combination

·         Power up with all switch channels deselected

·         Low RON switches

·         Allows voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V buses

·         No glitch on power up

·         Supports hot insertion

·         Low standby current

·         24 pins

·         5-V Tolerant inputs

·         0-kHz to 400-kHz Clock frequency

·         Latch-up performance exceeds 100 mA Per JESD 78, class II

·         ESD Protection exceeds JESD 22

±2000-V Human-body model (A114-A)

200-V Machine model (A115-A)

±1000-V Charged-device model (C101)


Package Includes:
1x I2C / IIC Multiplexer 8-channel module (PCA9548A/TCA9548A)
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