Three-Channel Bidirectional Bus Extender for HDMI, I2C-Bus and SMBus

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Product Details

Block Diagram


PCA9527 Block Diagram


Key Features

  • 3-channel, bidirectional buffer isolates capacitance allowing 1400 pF on port A and 400 pF on port B
  • Exceeds 18 meters (above the maximum distance for HDMI DDC)
  • Rise time accelerator and normal I/O on port A (no accelerator for CEC)
  • Static level offset on port B
  • Voltage level translation from 2.7 V to 5.5 V
  • CEC is 5 V tolerant, powered by VCC(B)
  • Upgrade replacement over PCA9507 and PCA9517A for cable application
  • I2C-bus, SMBus and DDC-bus compatible
  • Active HIGH buffer enable input
  • Open-drain input/outputs
  • Lock-up free operation
  • Supports arbitration and clock stretching across the repeater
  • Accommodates standard-mode and fast-mode I2C-bus devices and multiple controllers
  • Powered-off high-impedance I2C-bus pins
  • Port A operating supply voltage range of 2.7 V to 5.5 V
  • Port B operating supply voltage range of 2.7 V to 3.6 V
  • 5 V tolerant I2C-bus and enable pins
  • 0 Hz to 400 kHz clock frequency (the maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater)
  • ESD protection exceeds 8000 V HBM per JESD22-A114, 500 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Package offered: TSSOP10

Part numbers include: PCA9527DP.


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