GS4576C18GL-18 is an 18 Megabit asynchronous static RAM from GSI Technology. It is part of the GS4576 family, which is part of GSI's synchronous/asynchronous product line. This particular part is a Low Voltage (2.5V) Fully Synchronous device and is housed in a TSOP ii package. It features access time of 18ns, and features Auto Select read and write operations, Single IDDT and EDDT cycles, Simultaneous FRDY# and WE# strobe inputs, and Burst lengths of 1,2,4,8, or full page. It also offers an Endurance of 50,000 and Data Retention of 10 years. The device is pin and function compatible with JEDEC 28F1768 and 28F1768D.