Expandable multi-port random access memory

Details Expandable multi-port random access memory Expandable multi-port random access memory

1987-07-02

1989-03-28

Moffitt, James W.

Static information storage and retrieval

Systems using particular element

Flip-flop

365230, G11C 800

Patent

active

048170518

ABSTRACT:
A bipolar RAM circuit that can be expanded to provide as many ports as desired has separate read and write ports. Each read port comprises two transistors whose collectors are respectively connected to bit lines for that port and whose emitters are commonly connected to a word line. Each write port comprises a pair of transistors whose collectors are respectively connected to the data latch within the cell, whose bases are tied to a pair of bit lines and whose emitters are connected in common to a word line for that write port. To write information into the cell, current is either steered from a standby current path to a desired word line, or a larger write current is steered to the selected word line, causing the data in the cell to be determined by the differential voltage present on the bit lines for the write port.

REFERENCES:
patent: 4125877 (1978-11-01), Reinert
patent: 4412312 (1983-10-01), Berger et al.

Affiliated with

Also associated with

Rating

Expandable multi-port random access memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable multi-port random access memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable multi-port random access memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1665303