This part is a kind of semiconductor called PM5350.

Function of this product has SATURN USER NETWORK INTERFACE(155.52 & 51.84 MBIT/S).

Manufacturers : PMC-Sierra

Image and pinout :

Some of the text within the PDF file :

PM5350 S/UNI-ULTRA DATA SHEET PMC-960924 ISSUE 5 SATURN USER NETWORK INTERFACE PM5350 S/UNIR 155-ULTRA S/UNI-155-ULTRA SATURN USER NETWORK INTERFACE 155.52 & 51.84 MBIT/S DATA SHEET ISSUE 5: JUNE 1998 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE PM5350 S/UNI-ULTRA DATA SHEET PMC-960924 ISSUE 5 SATURN USER NETWORK INTERFACE PUBLIC REVISION HISTORY Issue No 5 Date of issue June 1998 Details of Change Data Sheet Reformatted No Change in Technical Content. Generated R5 data sheet from PMC-969489, R7 4 3 2 1 November 1997 Dec 20, 1996 Oct 15, 1996 Sept 12, 1996 Eng Doc (7) revised. Third Revision Second Revision Creation of Document PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE PM5350 S/UNI-ULTRA [ ... ]

PM5350 PDF Datasheet Download