Product Folder Order Now Technical Documents Tools & Software Support & Community PCA9544A SCPS146F – OCTOBER 2005 – REVISED AUGUST 2019 PCA9544A Low Voltage 4-Channel I2C and SMBus Multiplexer With Interrupt Logic 1 Features •1 1-of-4 Bidirectional translating switches • I2C Bus and SMBus compatible • Four active-low interrupt inputs • Active-low interrupt output • Three address pins, allowing up to eight devices on the I2C Bus • Channel selection via I2C Bus • 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 • Operating po...

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