Found 5 alternatives for TSB43DA42AGHC by Rochester Electronics, LLC. Interface Controllers — 196-LBGA.
IC PHY/LINK LAYER CTRLR 196-BGA
IC PHY/LINK LAYER CTRLR 196-BGA
IC PHY/LINK LAYER CTRLR 196-BGA
LAN CONTROLLER, PBGA196
IC PHY/LINK LAYER CTRLR 196-BGA