MCM72CB64SG66 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MCM72CB64SG66 Datasheet PDF : 14 Pages
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
256KB and 512KB BurstRAM™
Secondary Cache Module for
Pentium™
The MCM72CB32SG and MCM72CB64SG are designed to provide a burst-
able, 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 160 pin card edge
memory module. The module uses four of Motorola’s MCM67C518 or
MCM67C618 BiCMOS BurstRAMs.
Bursts can be initiated with either address status processor (ADSP) or address
status controller (ADSC). Subsequent burst addresses are generated internal to
the BurstRAM by the burst advance (ADV) input pin.
Write cycles are internally self timed and are initiated by the rising edge of the
clock (K) input. Eight write enables are provided for byte write control.
The cache family is designed to interface with popular Pentium cache control-
lers with on board tag.
PD0 – PD2 are reserved for density and speed identification.
• Pentium–style Burst Counter on Board
• 160 Pin Card Edge Module
• 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, 80 MHz, 100 MHz
• 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
• Burndy Connector, Part Number: CELP2X80SC3Z48
Order this document
by MCM72CB32/D
MCM72CB32
MCM72CB64
160–LEAD
CARD EDGE
CASE 1113–01
TOP VIEW
1
42
43
80
BurstRAM is a trademark of Motorola.
Pentium is a trademark of Intel Corp.
REV 1
5/95
M© OMoTtoOroRla,OInLc.A19F95AST SRAM
MCM72CB32•MCM72CB64
1
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