Vintage Synertek SY2128-2 SRAM, 2K x 8 120ns, coperchio ceramica oro 24 pin DIP
Manufacturer: Synertek Inc. Organization: 2048 words x 8 bits (2K x 8). This chip is a functional equivalent to several other common 2K x 8 SRAMs. Material: Ceramic with gold-plated lid and pins (High-reliability version).