2.5V 2M x 18 Flow-through synchronous SRAM 2M X 18 STANDARD SRAM, 10 ns, PQFP100 CARD READER 2 TRACK SWIPE RS232 CARD READER FULL insert USB CARD READER SNG TRACK MAN SWIPE CARD READER 3 TRACK FULL insert CARD READER FULL insert RS-232 From old datasheet system Sync SRAM - 2.5V