Level-Translating I2C and SMBUS Bus Repeater, PI6ULS5V9509 Replace TCA9509.
PI6ULS5V9509 PI6ULS5V9509.pdf
FEATURES

 Bidirectional Buffer Isolates Capacitance and Allows

  400pF on Port B of the Device
 Port A Operating Supply Voltage Range of 1.1V to 
  VCC(B) - 1.0V
 Port B Operating Supply Voltage Range of 2.5V to 5.5V
 Voltage Level Translation from 1.1V to VCC(B)- 1.0V and
  from 2.5V to 5.5V
 Requires no External Pullup Resistors on Lower Voltage
  Port A
 Open-Drain Port B Inputs/Outputs
 Lockup-Free Operation
 Supports Arbitration and Clock Stretching Across the
  Repeater
 Accommodates Standard Mode and Fast Mode I2C-Bus
  Devices and Multiple Masters
 Powered-off High-Impedance I2C-bus Pins
 5V Tolerant B SCL, SDA and Enable Pins
 0Hz to 400kHz Clock Frequency
 ESD Protection Exceeds 8KV HBM per JESD22-A114
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)

 Package: MSOP-8, SOIC-8 and UQFN1.6x1.6-8L








PIN CONFIGUTION
CROSS
TCA9509 TCA9509.pdf

No.14332

FEATURES

• Two-channel bidirectional buffer

• I2C bus and SMBus compatible
• Operating supply voltage range of 2.7V to 5.5V on
  B side
• Operating voltage range of 0.9V to 5.5V on A side
• Voltage-level translation from 0.9V to 5.5V and
  2.7V to 5.5V
• Active-high repeater-enable input
• Requires no external pullup resistors on lower
  voltage port-A
• Open-drain I2C I/O
• 5.5-V Tolerant I2C and enable input support mixed
  mode signal operation
• Lockup-free operation
• Accommodates standard mode and fast mode I2C
  devices and multiple controllers
• Supports arbitration and clock stretching across
  Repeater
• Powered-off high-impedance I2C bus pins
• Supports 400-kHz fast I2C bus operating speeds
• Available in
  – 1.6mm × 1.6mm, 0.4mm height, 0.5mm pitch
  QFN package
  – 3mm × 3mm Industry standard MSOP package
• Latch-up performance exceeds 100mA Per JESD
  78, class II
• ESD protection exceeds JESD 22
  – 2000V Human-body model (A114-A)
  – 1000V Charged-device model (C101)
PIN CONFIGUTION
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