DIODES PI4MSD5V9540BUEX

The PI4MSD5V9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C bus. SCx/SDx channel is selected at a time, determined by the contents of the programmable control register. A power-on reset function puts the registers in their default state and initializes the I2C bus state machine with no channels selected. The pass gates of the multiplexer are constructed such that the VCC pin can be used to limit the maximum high voltage that is passed by the PI4MSD5V9540B. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.2V, 1.8 V, 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel. All I/O pins are 5 V tolerant.

• 1-of-2 bidirectional translating multiplexer
• I2C-bus interface logic
• Operating power supply voltage: 1.65 V to 5.5 V
• Allows voltage level translation between 1.2V, 1.8V, 2.5 V, 3.3 V and 5 V buses
• Low standby current
• Low Ron switches
• Channel selection via I2C bus Power-up with all multiplexer channels deselected
• Capacitance isolation when channel disabled
• No glitch on power-up
• Supports hot insertion
• 5 V tolerant inputs
• 0 Hz to 400 kHz clock frequency
• ESD protection exceeds 8000 V HBM per JESD22 - A114, and 1000 V CDM per JESD22 - C101
• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
• Packages offered: SOIC - 8W, MSOP8U, TDFN2x3 - 8ZE