FPC401 quad port controller evaluation module


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The FPC401EVM aggregates all low-speed signals of two stacked on-board QSFP and SFP cages and LEDs, allowing full control of the four ports through a single I2C or SPI interface. The on-board MSP430 controller and GUI allow for easy configuration and testing of the FPC401 with both I2C and SPI and the headers also allow for interfacing with an external host controller.

  • On-board SPI/I2C controller for easy programming via USB port
  • On-board QSFP+ and SFP+ cages with LEDs
  • Reference layout for placement of FPC401 underneath SFP+ cage

  • AE9929-ND Mini USB Cable

I2C level shifters, buffers & hubs
FPC401 Quad Port Controller


Linear & low-dropout (LDO) regulators
TPS735 500-mA, low-IQ, low-dropout voltage regulator with enable


USB power switches & charging port controllers
TPS2561 2-ch, 0.25-2.8A adjustable ILIMIT, 2.5-6.5V, 44mΩ USB power switch, active-high
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Evaluation board


FPC401 quad port controller evaluation module

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Technical documentation

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Type Title Date
* EVM User's guide FPC401 and FPC402 Evaluation Module (EVM) User ’s Guide (Rev. B) 03 Sep 2019
Certificate FPC401EVM EU Declaration of Conformity (DoC) 02 Jan 2019
Technical article Solve the challenge of too many wires in high-speed networking equipment 26 Jan 2017
Data sheet FPC401 Quad Port Controller datasheet PDF | HTML 07 Dec 2016

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