2 Channel I2C bus switch with interrupt logic and Reset, PI4MSD5V9543 Replace PCA9543.
PI4MSD5V9543
PI4MSD5V9543.pdf
PI4MSD5V9543.pdfFEATURES
• 1-of-2 bidirectional translating multiplexer
• I²C-bus interface logic
• Operating power supply voltage:1.65V to 5.5V
• 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
• Capacitance isolation when channel disabled
• No glitch on power-up
• Supports hot insertion
• 5V tolerant inputs
• 0 Hz to 400 kHz clock frequency
• ESD protection exceeds 8000 V HBM per JESD22-A114,
and 1000V CDM per JESD22-C101
• Latch-up testing is done to JEDEC Standard JESD78
which exceeds 100 mA
• Packages offered: SOIC-14W,TSSOP-14L
PIN CONFIGUTION
优势替代
FEATURES
• 1-of-2 Bidirectional Translating Switches
• I2C Bus and SMBus Compatible
• Two Active-Low Interrupt Inputs
• Active-Low Interrupt Output
• Active-Low Reset Input
• Two Address Pins Allowing up to Four PCA9543A
Devices on the I2C Bus
• Channel Selection Via I2C Bus, in Any Combination
• 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 JESD78
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
PIN CONFIGUTION
