3.3V 256k x 16 Static RAM Center Pwr & Gnd Pinout 3.3V CMOS Static RAM 4 Meg (256k x 16-Bit) 256k x 16 STANDARD SRAM, 12 ns, PDSO44 3.3V CMOS Static RAM 4 Meg (256k x 16-Bit) 256k x 16 STANDARD SRAM, 15 ns, PBGA48 3.3V CMOS Static RAM 4 Meg (256k x 16-Bit) 256k x 16 STANDARD SRAM, 10 ns, PDSO44