2 Channel I2C bus Multiplexer, PI4MSD5V9540 Replace PCA9540.
PI4MSD5V9540
PI4MSD5V9540.pdf
FEATURES
• 1-of-2 bidirectional translating multiplexer
• I2C-bus interface logic; compatible with SMBus standards
• Operating power supply voltage range of 1.65V to 5.5
• Allows voltage level translation between 1.2V, 1.8V, 2.5V,
3.3V and 5V buses
• Low standby current
• Low Ron switches
• Channel selection via I2C-bus
• Power-up with all multiplexer channels deselected
• No glitch on power-up
• Supports hot insertion
• 5V tolerant inputs
• 0 Hz to 400 kHz clock frequency
• ESD protection exceeds 2000V 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 (W8), MSOP (U8), TDFN2x3 (ZE8)
PIN CONFIGUTION

优势替代