Cypress CMOS (128K; 16K x 8 bit) -- CY27C128-150PC type (markings: 9818 106842)

Label:
TG0302 (C) 1998
Frontier Design Group
v2.43r1 145-0302-3

Note: This is from the original 20-bit Tango and not the later and most-common Tango24.