SRAM - 3.3V Fast Asynchronous 3.3V 256K x 8 CMOS SRAM Hex D-Type Flip-Flops With Clear 16-TSSOP -40 to 85 Hex D-Type Flip-Flops With Clear 16-SO -40 to 85 256K X 8 STANDARD SRAM, 15 ns, PDSO44 Hex D-Type Flip-Flops With Clear 16-SOIC -40 to 85 256K X 8 STANDARD SRAM, 12 ns, PDSO44