[kjs3]

it generates data for are arranged as 8 bit output

There were/are x4 proms (e.g. am27s10 == 256x4).

45 ns, means it should function up to about 20 mhz

Theoretically. If you're careful.

I need some logic for my DEC J-11 CPU

Cool...I keep wanting to do something with my J-11s beyond play with ODT. What are you doing for storage? That seems to be the problem with most PDP-11 projects...most of the available OSes are deeply tied to storage related DECisms.

[dusted]

I'm going from scratch with the J-11, it won't run UNIX, my only real "goal" is to have a self-contained unit, something with a bit-mapped display and direct keyboard input, not just a serial port. I will probably use sram, and for permanent storage, long term, I'd like to do more with EEPROMs, but for starters, probably an SD card.