Multibus I: IEEE-796: Microcomputer System
Bus; First released by Intel in 1974. The cards did not use front panels,
and they used card edge fingers as the connectors (similar to
ISA/PC-AT cards). Companies like Northwest Technical still
provide "End of Life" products for Multibus. This bus is obsolete and
should not be used for new designs.
IEC 796-1:1990 Microprocessor system bus -- 8-bit
and 16-bit data (MULTIBUS I) -- Part 1: Functional description with
electrical and timing specifications
IEC 796-2:1990 Microprocessor system bus -- 8-bit and 16-bit data
(MULTIBUS I) -- Part 2: Mechanical and pin descriptions for the system
bus configuration, with edge connectors (direct)
IEC 796-3:1990 Microprocessor system BUS I, 8-bit and 16-bit data
(MULTIBUS I) -- Part 3: Mechanical and pin descriptions for the Eurocard
configuration with pin and socket (indirect) connectors
Multibus II: IEEE-1296 32 Bit Bus, at
80MBps. Card sizes are 3U x 220mm, and 6U x 220mm. These cards are larger
then the VME Eurocard sizes which are 3U/6U x
160mm. Uses TTL ('Fast' series) gates for drivers
and the Backplane Connectors are DIN41612 type C. Multibus II is not yet
considered obsolete, but considered mature; however it is not recommended
for new designs. IEEE-STD-1296: High-performance synchronous 32-bit bus:
MULTIBUS II, released in 1987, and 1994. Also as ISO/IEC 10861.
ISO/IEC 10861:1994 Information technology --
Microprocessor systems -- High-performance synchronous 32-bit bus:
MULTIBUS II
82389 Multibus Bus Interface IC {Intel}
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