MM-6326AD


A 64MB, Dual Port, VME/VSB Compatible DRAM Memory

Features
Capacity: 8, 16, 32, 64M
Cycle Time/Access Time (nsec) Read 125/75, Write 125/50 (Block Transfer-BLT, Page Mode and Bank-Interleave)
Compatible with VMEbus Rev C1 and VSBbus Rev C with A32/A24/D16/D8 (UAT) for VME and A32/D32 for VSB
Block Transfer for sequential access for both ports
Module Selection on 1MB boundaries, jumper-selectable for lower and upper limits on each bus
VMEbus Control Status Register (CSR) for parity reporting and control
Write-Wrong Parity for diagnostics
Parity generation and checking for error detection on each byte
Lifetime Warranty
Description

MM-6326AD Product Specification Sheet (PDF file format)

The MM-6326AD is a high speed, dual-port, single card slot memory module that provides up to 64MB for VME/VSB systems. It is intended for high performance applications employing Bank-Interleave, Page Mode and Block Transfer at data rates greater than 30MB/sec. It also supports sequential access (BLT) of 256 bytes on the VME and 64KB on the VSB bus.
The MM-6326AD is compatible with MVME130/131, MVME135/136, MVME141 and Delta Series systems.
The Control Status Register (CSR), located in the short I/O address space, stores and reads byte-wide parity errors detected on the VME/VSB buses. The other bits enable Write-Wrong parity for diagnostics, disable VME-port and determine whether the memory is CACHEable on the VSB bus. Parity generation and checking are provided for each byte; parity status is stored and transmitted via BERR*.
Reliability is ensured by burn-in and running memory diagnostics that check operation for 48 hours while temperature-cycling boards from 0 to 60°C. Also, reliability is backed up by Micro Memory, LLC's Lifetime Warranty.

MM-5410D Specifications

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Capacity : 8MB, 16MB, 32MB, 64MB

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Cycle/Access Time (nsec) :  Read: 125/75, Write: 125/50 (Block Transfer-BLT, Page Mode and Bank-Interleave), Read: 200/150, Write: 200/90 (Bank-Interleave)

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Address :  32 bits for VMEbus, 32 bits multiplexed with 32 data bits for the VSB bus

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Data In/Data Out :  8, 16, 32 bits (UAT) for VMEbus, 32 bits for VSB bus

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Sequential Access :  Block Transfer (BLT) of 256 bytes on VMEbus
64KB on VSB bus

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Address Modifiers :
AM0-AM5 are decoded by socketed IFL with the following codes:
A24: 39, 3A, 3D and 3E
A32: 09, 0A, 0D and 0E
A24 with BLT: 38, 3F
A32 with BLT: 0B, 0F

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Parity Checking : Byte-wide parity generation and checking; parity output stored and transmitted via CSR; Write-Wrong parity for diagnostics

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Control Status Register (CSR) : Read/Write, 8 bits wide, jumper-selectable, occupies one location in VME I/O space (A16)

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CSR Format :
D0 Enable Parity Out
D1 Write-Wrong Parity
D2 Memory CACHEable for VSB
D6 VMEbus Disable
D7 Parity Error
Others: Don't Care

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Interface : VME Rev C1 and VSB Rev C

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Modes of Operation : Read, write, read-modify-write, Page Mode in BLT, and refresh

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Memory Selection : Two independent memory banks, jumper-selectable on 1MB (100000H) boundaries for each port by setting the upper and lower limits

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Operating Temperature : 0 to +60°C

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Storage Temperature : -40 to +85°C

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Relative Humidity : Up to 95% without condensation

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Power Requirements : 5V at 5.5A