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