Switch IC with integrated PHYs
The KSZ8765CLXIC is a five-port Ethernet switch controller from Microchip, integrating 10/100 Base-FX/T/TX PHY transceivers on each port. It handles the MAC-layer forwarding and PHY-level signal conversion in a single 80-LQFP package. The host processor connects through either an MII or RMII interface — RMII halves the pin count to 50 MHz, which simplifies the PCB routing when the MCU or MPU supports it. The 3.3 V supply rail is shared across the core and the I/O, so a single regulator feeds the device.
Temperature grade and package fit
The device ships in a Tray — standard for LQFP packages that go through reflow in a panelized assembly line. No tape-and-reel option is listed, so the pick-and-place feeder setup expects a tray handler or a tube-to-tape conversion step.