From old datasheet system HIGH-SPEED 3.3V 64K x 18 SYNCHRONOUS PIPELINED dual-port STATIC RAM WITH 3.3V OR 2.5V INTERFACE 64K X 18 dual-port SRAM, 6 ns, PBGA256 HIGH-SPEED 3.3V 64K x 18 SYNCHRONOUS PIPELINED dual-port STATIC RAM WITH 3.3V OR 2.5V INTERFACE 64K X 18 dual-port SRAM, 6 ns, PQFP128 HIGH-SPEED 3.3V 64K x 18 SYNCHRONOUS PIPELINED dual-port STATIC RAM WITH 3.3V OR 2.5V INTERFACE 64K X 18 dual-port SRAM, 6 ns, PBGA208