Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1994-06-16

1995-06-06

Popek, Joseph A.

Static information storage and retrieval

Addressing

Sync/clocking

365220, 365239, G11C 800

Patent

active

054228581

ABSTRACT:
A rate conversion circuit area (8) is provided between a spread gate area (4) which operates in synchronization with a clock signal CLK and a RAM core (7) (macro cell) operating in synchronization with a clock signal (ck) whose frequency is higher than that of the clock signal (CLK). With this arrangement, the single port core is made accessible as a dual port RAM by forming the clock signal (ck) whose frequency is multiplied an optional number of times that of the clock signal (CLK), receiving access data equivalent to a plurality of operating cycles in parallel from the spread gate area during a predetermined unit operating access cycle period in the spread gate area, and serially supplying these to the RAM core 7 during the plurality of operating cycle periods in synchronization with the clock signal (ck).

REFERENCES:
patent: 4141039 (1979-02-01), Yamamoto
patent: 4945518 (1990-07-01), Muramatsu et al.
patent: 5046051 (1991-09-01), Doornhein et al.
patent: 5086388 (1992-02-01), Matoba et al.
patent: 5097447 (1992-03-01), Ogawa et al.

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-992614