4 Channel I2C bus Multiplexer with interrupt logic, PI4MSD5V9544 Replace PCA9544.
PI4MSD5V9544
PI4MSD5V9544.pdf
PI4MSD5V9544.pdfFEATURES
• 1-of-4 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, 1.8 V,
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: TSSOP-20L
PIN CONFIGUTION
CROSS
FEATURES
• 1-of-4 Bidirectional translating switches
• I2C Bus and SMBus compatible
• Four active-low interrupt inputs
• Active-low interrupt output
• Three address pins, allowing up to eight devices
on the I2C Bus
• Channel selection via I2C Bus
• Power up with all switch channels deselected
• Low RON 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 standby current
• Operating power-supply voltage range of
2.3 V to 5.5 V
• 5.5-V Tolerant inputs
• 0 to 400-kHz Clock frequency
• Latch-up performance exceeds 100 mA Per JESD 78
• ESD Protection exceeds JESD 22
– 2000-V Human-body model (A114-A)
– 200-V Machine model (A115-A)
– 1000-V Charged-device model (C101)
PIN CONFIGUTION
