Random Access Memory Module

General description

The imm6-28 Random Access Memory Card has been designed to provide a user with a 4,096 (4K) 8-bit words of random-access memory, which may be used asa computer system’s memory device.

More than one imm6-28 card may be included in a system, for example, the imm8-82 Central Processor card can address up to 16,384 words of memory on fbur separate imm6-28 cards.
Although the imm6-28 Random Access Memory Card has been designed to support the Intel imm8-82 Central Processor Card, it can be used in any other system which requires 4K x 8 bits of RAM storage.
In order to describe its operation, the imm6-28 card has been divided into four functional units:
1. The Address Control Block, which determines which card is to be used for a memory operation, and which memory location on that card is being addressed.
2. The Operation Control Block, which controls the execution of all operations performed by the card.
3. The Read/Write Buffers, which buffer the data which is read from or written into memory.
4. The Memory Block, which contains the actual memory components.
Each operation performed by the imm6-28 card uses at least one of these functional units.

Electronics diagram


The INTELLEC8 /MOD8 is made up of separate units, each of which performs a different task in making up a complete system.