This page describes the pinout and signal names for NuBus as used on
Apple computers [Macintosh and NeXT Computer].
The NUbus expansion interface is obsolete and should not be used for new
designs. NUbus is a 32-bit bus and was defined by IEEE Std
1196-1987.
NuBus was used as an Apple expansion bus with 32 bit address and 32 bit data bus operating at
10MHz, with a throughput of 40MBps.
The NuBus card had a form factor of 12" x 7", and used a standard 96-pin
three-row (VME)
connector.
NuBus90, increased the clock rate to 20Mhz providing a throughput of
70Mbps. NUbus was replaced by the PCI expansion bus.
Additional pinout tables for other Apple protocols are listed on the
Apple Computer Buses
page.
A full list of buses found on any computer type is listed on the Personal Computer Buses
page.
NuBus Pin outs and Signal Assignments
NuBus Row A Pinout
NuBus Row B Pinout
NuBus Row C Pinout
Nubus was also released by TI in 1983, before it became an IEEE standard. The two are not the same.
Engineering Key words: Apple, Macintosh, MAC, NUbus, Computer
Buses, Connector Pin-Outs, Pin out, Signal Name, Standard, Interface
Standard,
Specification, Spec, Physical Interface, Description, Personal Computer
Interface, Peripheral, Printer Interface, Obsolete, Out-dated, Legacy.
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