8 Channel I2C Bus Switch with Reset, PI4MSD5V9548 Replace TCA9548.
PI4MSD5V9548 PI4MSD5V9548.pdf
FEATURES

• 1-of-8 bidirectional translating switch
• I2C-bus interface logic
• Operating power supply voltage from 1.65V to 5.5V
• 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
• Active LOW reset input
• Channel selection via I2C bus
• Power-up with all switches 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-24L,TQFN-24ZD




PIN CONFIGUTION
优势替代
TCA9548 TCA9548.pdf

No.14225

FEATURES

• 1-to-8 Bidirectional translating switches

• I2C Bus and SMBus compatible
• Active-low reset input
• Three address pins, allowing up to eight
  TCA9548A devices on the I2C bus
• Channel selection through an I2C Bus, in any
  combination
• Power up with all switch channels deselected
• Low RON switches
• Allows voltage-level translation between 1.8V,
  2.5V, 3.3V, and 5V buses
• No glitch on power up
• Supports hot insertion
• Low standby current
• Operating power-supply voltage range of
  1.65V to 5.5V
• 5-V Tolerant inputs
• 0 to 400kHz Clock frequency
• Latch-up performance exceeds 100mA Per JESD
  78, class II
• ESD Protection exceeds JESD 22
  – ±2000V Human-body model (A114-A)
  – 200V Machine model (A115-A)
  – ±1000V Charged-device model (C101)
PIN CONFIGUTION
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