Description: INTEL MULTIBUS Single Board Computer SBC 286/12 Manuals are online. Memory expansion board has 36 TMS4256 (256K by 1) DRAM Chips = 1 megabyte8MHz 80286™ Microprocessor2 JEDEC 28-Pin Sites for up to 128KB of local EPROM Memory1, 2, or 4MB, 0 wait-state, Dual-Port, Parity MemorySupports User Installed 80287 Numeric Data Processor and 82258 advanced DMA Controller Devices2 SBX Bus Interface Connectors for I/O ExpansionSynchronous High-Speed Interface for 0 Wait-State Read/Write to EX Memory Expansion BoardsiLBX interface for iLBX Memory Board Expansion16 Levels Vectored Interrupt ControlCentronics-Compatible Parallel I/O Printer Interface2 Programmable Multiprotocol Synchronous/Asynchronous Serial Interfaces; 1 RS232C, the other RS232C or RS422/449 Compatible The boards feature an 80286 microprocessor running at 8MHz together with 1, 2, or 4MB of dual-ported, 0 wait-state, parity memory. For those applications needing more memory, up to four memory expansion boards may be connected to the SBC286/12/14/16 boards over its P2 interface. The P2 interface supports both standard LBX memory boards and Intel's EX series of synchronous, 0 wait-state, memory boards that provide up to 16MB of system memory. The SBC286/12 boards also feature two sockets for user installed 287 Numeric Data Processor and 82258 Advanced Direct Memory Access Controller devices. These components further increase board performance by off-loading time intensive tasks from the 80286 microprocessor. If you are outside the lower 48 states, please contact me to discuss possible shipping arrangements. I am a retired engineer selling my collection of vintage computers and electronics. All my multibus equipment was removed from working systems 20+ years ago. It is being sold without returns because of its age. Check my other listings for more Multibus boards.
Price: 159 USD
Location: Johnson City, Tennessee
End Time: 2025-01-19T17:19:41.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Unit Type: Unit
Vintage: Yes