MM-6394D

MM-6394D

A 64MB VME/VME64 Compatible High-Speed CMOS NVRAM

Features

Capacity
CMOS NVRAM: 16, 32, 64, 128MB
Flash Memory: 32, 64, 128, and 256MB

Block Transfer of 256 bytes for VME and 2KB for VME64

Cycle/Access Time CMOS NVRAM: 150/100 nsec Flash memory: 200/150 nsec (read only mode)

Module Selection on 1MB boundaries, switch-selectable

On-board timer provides 1 usec to 16 msec in 1 usec increments for Flash timing requirements

Two on-board redundant, fused lithium or NiCad batteries

Data retention for CMOS
3 years with lithium batteries
4 weeks with rechargeable NiCad batteries

Compatible with VME/VME64 A32/A24/D64/D32/D16/D8 (UAT) (BLT) (MBLT)

Description

A high-speed, dual-port, single card slot, high-density memory module, the MM-6394D provides up to 1GB for VME/VME64/VSB systems. It is intended for high performance applications employing Block Transfer at data rates of 80 MB/sec. It also supports sequential access (BLT/MBLT) of 256/2KB on the VME/VME64 and 1KB on the VSB bus.

The Control Status Register (CSR) is located in the short I/O address space.

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 70°C. Also, reliability is backed up by Micro Memory's Lifetime Warranty.

MM-6394D Specifications

	Capacity : 256M, 512M, and 1GB
	Cycle/Access Time (nsec) : Block Transfer (BLT/MBLT)-Write: 100/30 Read: 100/30
	Data Transfer Rate : VME64: 80 MB/sec, VME/VSB: 40 MB/sec
	Address : 32 bits for VMEbus, 32 bits multiplexed with 32 data bits for the VSB bus
	Data In/Data Out : 8, 16, 32, 64 bits (UAT) for VMEbus, 32-bit slave for VSB bus
	Sequential Access : Block transfer (BLT/MBLT) of 256/2KB, 8KB on the VME/VME64 bus, 8KB on the VSB bus
	Address Modifiers : AM0-AM5 decoded by socketed PLD with the following codes: A24: 39, 3A, 3D and 3E A32: 09, 0A, 0D and 0E A24 with MBLT: 38, 3C A24 with BLT: 3B, 3F A32 with BLT: 0B, 0F with MBLT: 08, 0C
	Parity Checking : Byte-wide parity generation and checking; parity output stored and transmitted via CSR, Write-Wrong parity for diagnostics
	Control Status Register (CSR) : Read/Write, 8 bits wide, jumper-selectable in VME short I/O space (A16) with VMEbus low limit address tracking
	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
	Interface : VME Rev D and VSB Rev C
	Modes of Operation : Read, write, read-modify-write, and refresh
	Memory Selection : Two independent memory ports, switch-selectable on 1MB (100000H) boundaries for each port by setting the upper and lower limits of each port through the CSR short I/O address
	Operating Temperature : 0 to 70°C
	Storage Temperature : -40 to +85°C
	Relative Humidity : Up to 95% without condensation
	Power Requirements : 5V @ 3.75AA