KA640 CPU

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The KA640 is the CPU used in MicroVAX 3300/3400 systems. It uses the KA650 Main Memory System, includes built-in DSSI and Ethernet interfaces, and provides a QBUS for general I/O capabilities.

Physically, it is a single quad-height PCB which plugs into a QBUS backplane. The KA640 module number is M7624.

This article is a stub. You can help by expanding it.

External links

640 - documentation at Bitsavers
- KA640 CPU Module Technical Manual (EK-KA640-TM-001)
- KA640 CPU System Maintenance (EK-179A-MG-001)

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VAX QBUS Processors

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