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MCM-7706 SID Bus 8 64KB 64KB YES
IPM-7709 CMOS SID Bus
8 512 KB 256 KB YES
MCM-7709 SID Bus
IPM-DPRAM CMOS SID Bus
8 1 KB
-
NOMCM-DPRAM SID Bus
MCM-DRAMI28 SID Bus 8 128 KB
-
NOMCM-DRAM64 SID Bus 8 64KB
IPM-UMC CMOS SID Bus
8 64KB 64KB NO
MCM-UMC SID Bus
IPM-UMC2 CMOS SID Bus
8 512 KB 256 KB OPT.
MCM-UMC2 SID Bus
IPM-UMC4 CMOS SID Bus
8 1024 KB 1024 KB OPT.
MCM-UMC4 SID Bus
'.i_.sle_s®C .m.~iill
, 1111 Bge
,:,: 1111 BBI lReMfI)1I liarl
:i~~ x >;<
FEATURES
• Eight 28-pin Bytewide compatible memory sockets that hold up to 64K bytes of battery backed RAM
• 10 year data retention
• Unused sockets can be populated with any mix of EPROMs or RAMs up to 64K bytes
• Processor independent including 80188,8088, 68008, HD64180, 8085A, Z80, 6502, and 6809
• Supports 16 or 20-bit direct addressing
• Compatible with Sm-8088 1 Megabyte AddreSSing
• Page Mode Operation for up to sixteen boards per system
• Onboard flexible address decoding
• Replaces Pro-Log 7706 and Mostek MDX-ZRAM
• 8 MHz Operation
• Single +5 Volt operation
The MCM-7706 is a sm Bus bytewide memory expan-sion card with eight 28-pin ]EDEC sockets which is populated with battery backed RAMs. Unused sockets can hold any mix of EPROMs or RAMs to 64K bytes of memory on a single board. All sm Bus processor types including the Z80, 8085A, HD64180, 6809, 6502,8088,80188 and 68008 are supported.
FUNCTIONAL CAPABILI1Y
Addressing - This card can be used with either 16-bit addressing or direct 20-bit addressing methods. Using the 20-bit address multiplexing configuration, up to 1M
DATA DATA BUS 00-07 (A16-A19) BUS
byte of memory may be directly addressed by 8088, 80188,68008 or HD64180 based systems. AO through A15 are received directly from the address bus and the MCM-7706 demultiplexes the remaining four address
SHADING INDICATES SOCKETS ONLY
lines, A16 - A19 from the data bus. More than one MCM-7706 card can be in a STD Bus system providing up to a full 1 Megabyte of directly addressable memory.
When used with 8-bit processors that generate only a 16-bit memory address, the card supports up to 64K bytes of direct addressing.
The MCM-7706 also has a page mode operation to allow up to 16 MCM-7706 boards per SID Bus system.
The page mode circuit operates from a write only I/O port located at address FFh. It writes up to 16 individ-ual page numbers to an on-board latch which enables/
disables the memory board. This circuit is used by 8-bit processors that do not support other memory man-agement techniques for memory addressing beyond 64K bytes.
Memory -The MCM-7706 is populated with the Dal-las semiconductor nonvolatile 2K x 8 and! or 8K x 8 memory modules. These units are fully static RAMs with a self contained lithium energy source and con-trol circuitry that monitors Vcc for an out of tolerance condition. When such a condition occurs, the energy source is automatically switched on and write protec-tion is uncondiprotec-tionally enabled to prevent garbled data.
There is no limit on the number of write cycles which can be executed and no additional support circuitry is required. The devices have over 10 years of data reten-tion. For additional information call Dallas Semicon-ductor at (214) 450-0400.
The board contains eight JEDEC standard 28-pin sock-ets that are configured to support 2K, 4K, or 8K byte, 24 or 28-pin devices for a maximum of 64K bytes of RAM or EPROMs per board. Sockets not containing a Dallas Semiconductor nonvolatile RAM can accept other bytewide memory devices.
A flexible decoder is provided that has 16 different memory maps, 12 of which are defined by WinSystems and 4 which can be custom configured by the user.
For special configurations or memory maps contact the factory.
The MCM-7706 will support systems running up to 8 MHz clocks with the correct speed memory devices installed.
This board is a functional replacement to the Mostek MDX-ZRAM (MK77767) and the Pro-Log 7706.
WinSystems, Inc.
SPECIFICATIONS Electrical
Compatible with the STD Bus for the ZSO, 8085A, 6809,6502, HD641SO, 8088, 80186 and 68008 micro-processors.
Vcc = +5 volts ~ 5% at 300 rnA typo without onboard memory
Memory
Capacity: Eight 28 pin bytewide memory sockets with 4K, 8K, 16K, 32K, 48K or 64K of battety backed memory. Each unused socket can be strapped for 2K, 4K or 8K RAM, BRAM, ROM, or EPROM devices.
Decoding: Bipolar PROM with twelve preprogrammed memory decode options and four user pro-grammable.
Page Mode: Up to 16 boards per system controlled by I/O port FFh.
Direct Addressing: Up to 1 Megabyte using 20-bit addressing
Mechanical
Dimensions: Meets all SID Bus mechanical specifica-tions; 4.5 x 6.5 inches
Connectors
SID Bus: 56-pin dual 0.125 inch centers Jumpers: 0.025" square posts
Environmental
Operating Temperature: O·C to +65·C Non-condensing relative humidity: 5% to 95%
ORDERING INFORMATION
MCM-7706-4L 4K byte battety backed memory card MCM-7706-8L 8K byte battery backed memory card MCM-7706-16L 16K byte battery backed memory card MCM-7706-32L 32K byte battery backed memory card MCM-7706-48L 48K byte battery backed memory card MCM-7706-64L 64K byte battery backed memory card
P.O. Box 121361/ Arlington, Texas 76012/ (817) 274-7553
FEATURES
• Supports 16 or 20-bit direct addressing up to 1M byte
• 256K byte CMOS static RAM capacity
• Available in 8K, 16K, 32K, and 64K byte versions
• lithium battery backup
• Unused sockets support RAM, ROM, EPROM, and EEPROMs
• Onboard powerfail/brown-out detect circuit
• Write protection for RAMs
• Processor independent including 80188, 80C88, 68008, HD64180, 80C85A, Z80, NSC800 and 6809
• Flexible address decoding
• MEMEX supported
• Single +5 volt operation
• Operational temperature range: _40' to +85'C
• Replaces Pro-Log 77C09 card
• Available for CMOS SID Bus: LPM-7709
The LPM/MCM-7709 is a SID Bus and CMOS SID Bus battery backed bytewide memory expansion card with eight 28-pin ]EDEC sockets that provide up to 256K bytes of non-volatile memory storage. If not all static CMOS RAM is required, ROMs, EPROMs and EEPROMs can be added in the unused sockets to provide the total memory requirements for many SID Bus and CMOS SID Bus systems. It is designed to
support all the SID Bus and CMOS SID Bus processor types including the Z80, 80C85A, NSC800, HD64180, 6809, 80C88, 80188 and 68008.
GROUP 1
SHADING INDICATES SOCKETS ONLY