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PCA9548 Datasheet - Philips Electronics

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Part Name
PCA9548

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16 Pages

File Size
115.7 kB

MFG CO.
Philips
Philips Electronics Philips

DESCRIPTION
The PCA9548 is a octal bi-directional translating switch controlled by the I2C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable Control Register.

FEATURES
• 1-of-8 bi-directional translating switches
• I2C interface logic; compatible with SMBus standards
• Active LOW Reset Input
• 3 address pins allowing up to 8 devices on the I2C-bus
• Channel selection via I2C-bus, in any combination
• Power-up with all switch channels deselected
• Low RdsON 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 stand-by current
• Operating power supply voltage range of 2.3 V to 5.5 V
• 5 V tolerant Inputs
• 0 kHz to 400 kHz clock frequency
• ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V per JESD22-C101
• Latchup testing is done to JESDEC Standard JESD78 which exceeds 100 mA
• Packages offered: SO24, TSSOP24

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