SS50-PT-64K Memory board for SWTPC and SS50 Computers

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PT-64K Memory Board


64K memory board for 6800  and 6809 systems.

Does not support extended addressing.  Cannot be used in systems with A16-A19 address lines.

Memory can be disabled in 4K blocks at 8000, 9000, A000, B000, C000 and D000.

Memory from E000-FFFF is not accessible  since it would conflict with I/O or EPROMS.

When used with PT-B2 motherboard,  can provide memory from 8400-8FFF in 6800 systems.

Uses 120ns or faster memory

Can be used in 1MHZ or 2MHZ systems.



SS50-PT-64K User Manual. PDF 

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Price List Hardware

PT-64K-Bare Bare Board + PAL $10
PT-64K-ASM Tested and Assembled Board $39

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