The MCM69L738A/820A is a 4 megabit synchronous late write fast static RAM designed to provide high performance in secondary cache and ATM switch, Telecom, and other high speed memory applications. The MCM69L820A organized as 256K words by 18 bits, and the MCM69L738A organized as 128K words by 36 bits wide are fabricated in Motorola's high performance silicon gate BiCMOS technology.