Translate Voltages for I2C

Example of Using Voltage Translation With an I²C Communication Bus

Design Considerations

Typical data rates can range from 100 kpbs – 3.4 Mbps
Certain I²C modes have minimum rise time requirements that may be violated due to the edge-rate acceleration feature in the TXS family
Enable communication when devices have mismatched logic voltage levels.
Prevent damage to devices that cannot support higher voltage inputs.
Improve data rates over discrete translation solutions.
[FAQ] Why are the TXS01xx VIH/VIL specifications so stringent?
Need additional assistance? Ask our engineers a question on the TI E2E™ Logic Support Forum.

Recommended Parts

Part Number	AEC-Q100 Qualified	Voltage Translation Range	Features
LSF0102		0.95 V – 5 V	Over-voltage tolerant I/O Low R_ON for less signal distortion
LSF0102-Q1	✓	0.95 V – 5 V
TXS0102		1.65 V – 5.5 V	Edge-rate acceleration Supports Partial-Power-Down applications Integrated pull-up resistors
TXS0102-Q1	✓	1.65 V – 5.5 V

For more devices, browse through the online parametric tool where you can sort by desired voltage, channel numbers, and other features.

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