Given their industrial temperature rating (-40°C to +85°C) and diagnostic features, these transceivers are commonly found in: Industrial controllers and automation hardware. Set-top boxes and game consoles. Printers, IP phones, and SOHO networking equipment.
: Provides a simple mechanism for detecting manufacturing faults (like open pins or shorts) between the chip’s I/Os and the PCB. ksz80 ob s4lv02 datasheet
For full design implementation, refer to the Microchip KSZ8081MNX/RNB Data Sheet or the Migration Guide if you are upgrading from an older KSZ8041 design. KSZ8041 | Microchip Technology Given their industrial temperature rating (-40°C to +85°C)
If you are looking for a "KSZ80" datasheet for a single chip rather than a TV board, you likely mean one of the following : ksz80 ob s4lv02 datasheet