256K/512K Pipelined BurstRAM Secondary Cache Module for Pentium

The MCM64PE32 (256K) and MCM64PE64 (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 MCM64PE32 is configured as 32K x 64 bits and the MCM64PE64 is configured as 64K x 64 bits. Both are packaged in a 160 pin card edge memory module. The MCM64PE32 module uses Motorola’s 3.3 V 32K x 32 BurstRAMs and one Motorola 5 V 32K x 8 FSRAM for the tag RAM. The MCM64PE64 module uses Motorola’s 3.3 V 64K x 32 BurstRAMs and one Motorola 5 V 32K x 8 FSRAM for the tag RAM.

• Pentium–Style Burst Counter on Chip

• Pipelined Data Out

• 160 Pin Card Edge Module

• Address Pipeline Supported by ADSP Disabled with Ex

• All Cache Data and Tag I/Os are TTL Compatible

• Three State Outputs

• Byte Write Capability

• Fast Module Clock Rate: 66 MHz

• Fast SRAM Access Times:15 ns for Tag RAM

8 ns for Data RAMs

• One–Cycle Deselect Data RAMs

• Decoupling Capacitors for Each Fast Static RAM

• High Quality Multi–Layer FR4 PWB with Separate Power and Ground Planes

• 8 Bits Tag RAM

• Dual Power Supplies: 3.3 V + 10, – 5

5 V ± 10

• Burndy Connector, Part Number: CELP2X80SC3Z48

• Intel COAST 3.0 Option III Compliant

• Burst Order Select (BOSEL) Option