The MCM64PD32 (256K) and MCM64PD64 (512K) are designed to provide a burstable, high performance, L2 cache for the Pentium microprocessor in conjunction with Intel's Triton II chip set. The MCM64PD32 is configured as 32K x 64 bits and the MCM64PD64 is configured as 64K x 64 bits. Both are packaged in a 160 pin card edge memory module. Each module uses Motorola's 3.3 V 32K x 32 BurstRAMs and two Motorola 3.3 V 32K x 8 FSRAM for the tag RAM. Bursts can be initiated with either address status processor (ADSP) or cache address status (CADS). Subsequent burst addresses are generated internal to the BurstRAM by the cache burst advance (CADV) input pin. Write cycles are internally self timed and are initiated by the rising edge of the clock (CLK0) input. Eight write enables are provided for byte write control. PD0 PD3 map into the Triton II chip set for autoconfiguration of the cache control.