512K x 9 Bit Separate I/O Synchronous Fast Static RAM

The MCM67Q909 is a 4M–bit static random access memory, organized as 512K words of 9 bits. It features separate TTL input and output buffers, which drive 3.3 V output levels, and incorporates input and output registers on–board with high speed SRAM. It also features transparent–write and data pass–through capabilities.

The MCM67Q909 is available in an 86–bump surface mount PBGA (Plastic Ball Grid Array) package

• Single 5 V ± 5 Power Supply

• Fast Cycle Time: 12 ns Max

• Single Clock Operation

• TTL Input and Output Levels (Outputs LVTTL Compatible)

• Address, Data Input, E, W, and G Registers On–Chip

• 83 MHz Maximum Clock Cycle Time

• Self–Timed Write

• Separate Data Input and Output Pins

• Transparent–Write and Pass–Through

• High Output Drive Capability: 50 pF/Output at Rated Access Time

• Boundary Scan Implementation

• PBGA Package for High Speed Operation