159 (NORD-1 card)
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159 Memory OR, is a card that is used in the NORD-1 CPU.
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Introduction
The card is made in the standard NORD-1 card format.
| CPU model | Crate position |
|---|---|
| 29 | C30 |
| 35 | C30 |
The logic diagram is documented in drawing 2A59.[1]
Switches and indicators
There are no switches or indicators on this board.
BOM
This list contains the logic circuits used, passive components are not listed.
- 8 x 7401 quad 2-input NAND gate with open collector outputs
- 1 x 7402 quad 2-input NOR gate
Reference
- ↑ HARDWARE MANUAL NORD 1
- Hardware in NORD-1 Serial 47