The supply voltage (V_PU) for each channel can be individually set with a pull-up resistor. Figure 9-4 shows an example of this mixed-mode multi-voltage translation. For additional details on multi-voltage translation, see the Multi-voltage Translation with the LSF Family video.

With the V_{ref_B} pulled up to 5 V and V_{ref_A} connected to 1.8 V, all channels will be clamped to 1.8 V at which point a pullup can be used to define the high level voltage for a given channel.

• Push-Pull Down Translation (5 V to 1.8 V): Channel 1 is an example of this setup. When B1 is 5 V, A1 is clamped to 1.8 V, and when B1 is LOW, A1 is driven LOW through the switch.
• Push-Pull Up Translation (1.8 V to 5 V): Channel 2 is an example of this setup. When A2 is 1.8 V, the switch is high impedance and the B2 channel is pulled up to 5 V. When A2 is LOW, B2 is driven LOW through the switch.
• Push-Pull Down Translation (3.3 V to 1.8 V): Channels 3 and 4 are examples of this setup. When either B3 or B4 are driven to 3.3 V, A3 or A4 are clamped to 1.8 V, and when either B3 or B4 are LOW, A3 or A4 are driven LOW through the switch.
• Open-Drain Bidirectional Translation (3.3 V ↔ 1.8 V): Channels 5 through 8 are examples of this setup. These channels are for bidirectional operation for I²C and MDIO to translate between 1.8 V and 3.3 V with open-drain drivers.

Figure 9-4 Multi-Voltage Translation with the LSF010x-Q1