PCA9507D,118

PCA9507D,118 is a 2-wire serial bus extender for HDMI DDC I²C-bus and SMBus. The PCA9507D providing 3.3V to 5V level shift that allows up to 18 meters bus extension for reliable DDC, I²C-bus or SMBus applications. While retaining all the operating modes and features of the I²C-bus system during the level shifts, it also permits extension of the I²C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) line as well as the rise time accelerator on port A enabling the bus to drive a load up to 1400pF or distance of 18m on port A, and 400 pF on port B. Using the PCA9507 enables the system designer to isolate bus capacitance to meet HDMI DDC version 1.3 distance specification. The SDA and SCL pins are overvoltage tolerant and are high-impedance when the PCA9507 is unpowered.

• Supply voltage range from 2.7 to 5.5V
• Rise time accelerator and normal I/O on port A
• Static level offset on port B
• I²C-bus, SMBus and DDC-bus compatible
• Active HIGH buffer enable input, open-drain input/outputs and lock-up free operation
• Supports arbitration and clock stretching across the repeater
• Accommodates standard-mode and fast-mode I²C-bus devices and multiple hosts
• Upgrade replacement over PCA9517 for cable application
• Powered-off high-impedance I²C-bus pins
• 8 pin SOIC package and operating temperature range from -40 to 85°C

คำเตือน

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