256KB and 512KB BurstRAM Secondary Cache Module for Pentium

The MCM72BA32SG and MCM72BA64SG are designed to provide a burstable, high performance, 256K/512K L2 cache for the Pentium microprocessor. The modules are configured as 32K x 72 and 64K x 72 bits in a 136 pin dual readout single inline memory module (DIMM). The module uses four of Motorola’s MCM67B518 or MCM67B618 BiCMOS BurstRAMs.

• Pentium–style Burst Counter on Board

• Dual Readout SIMM for Circuit Density

• Single 5 V ± 5 Power Supply

• All Inputs and Outputs are TTL Compatible

• Three State Outputs

• Byte Parity

• Byte Write Capability

• Fast Module Clock Rates: 66 MHz, 60 MHz, 50MHz

• Decoupling Capacitors for each Fast Static RAM

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

• I/Os are 3.3 V Compatible