64K x 18 Bit Asynchronous/Latched Address Fast Static RAM

The MCM67A618B is a 1,179,648 bit latched address static random access memory organized as 65,536 words of 18 bits. The device integrates a 64K x 18 SRAM core with advanced peripheral circuitry consisting of address and data input latches, active low chip enable, separate upper and lower byte write strobes, and a fast output enable. This device has increased output drive capability supported by multiple power pins.

Six pair of power and ground pins have been utilized and placed on the package for maximum performance.

The MCM67A618B will be available in a 52–pin plastic leaded chip carrier (PLCC).

This device is ideally suited for systems that require wide data bus widths, cache memory, and tag RAMs.

• Single 5 V ± 5 Power Supply

• Fast Access Times: 10/12/15 ns Max

• Byte Writeable via Dual Write Enables

• Separate Data Input Latch for Simplified Write Cycles

• Address and Chip Enable Input Latches

• Common Data Inputs and Data Outputs

• Output Enable Controlled Three–State Outputs

• 3.3 V I/O Compatible

• High Board Density 52–Lead PLCC Package