Read/write circuit for a random access memory

Details Read/write circuit for a random access memory Read/write circuit for a random access memory

1980-12-04

1983-08-23

Martin, John C.

Static information storage and retrieval

Read/write circuit

Signals

365189, G11C 700

Patent

active

044008015

ABSTRACT:
A read/write circuit for a random access memory comprises mode switching means for placing the memory into a read mode if an external read request signal is received and for placing the memory into a write mode if an external write request signal is received. A priority circuit controls said mode switching means and prevents it from placing the memory into the read mode as long as a write request signal is present and enables said mode switching means for placing the memory into the read mode after each write operation has been completed. A read-out control circuit is responsive to the read request signal for enabling a read operation at the next following read mode enabling and for repeating the read operation at the subsequent read mode enabling if the read operation was not completed before the termination of the read mode enabling.

REFERENCES:
patent: 3969706 (1976-07-01), Proebsting
patent: 4141039 (1979-02-01), Yamamoto
Kroeger, "Operation of the Am 9130/40 4K Static r.a.m.s.", New Electronics, vol. 9, No. 19, pp. 38, 41, 43, Oct. 5, 1976.

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