Supporting scan functions within memories

Details Supporting scan functions within memories Supporting scan functions within memories

2009-09-18

2011-10-25

Tran, Michael (Department: 2827)

Static information storage and retrieval

Read/write circuit

With shift register

C365S189050

Reexamination Certificate

active

08045401

ABSTRACT:
A memory is disclosed comprising: a storage array for storing data; and access circuitry for transmitting data to and from the storage array. The access circuitry forms a data path for inputting and outputting data to the storage array. The access circuitry comprises a latch configured to latch in response to a first phase of a first clock signal and a further latch configured to latch in response to a second phase of a second clock signal, the further latch comprises an output latch for outputting the data from the storage array, and the first and second clock signals are synchronized with each other. The memory further comprises: a multiplexer, a scan input and a scan enable input, the multiplexer being responsive to an asserted scan enable signal at the scan enable input to form a scan path comprising the latch and the further latch connected together to form a master slave flip flop, such that scan data input at the scan input passes through the master slave flip flop and not through the storage array while the scan enable signal is asserted and is output by the output latch.

REFERENCES:
patent: 7272069 (2007-09-01), Su
patent: 7286434 (2007-10-01), Mori et al.
patent: 7751256 (2010-07-01), Chan et al.
patent: 7796434 (2010-09-01), Jang et al.

Affiliated with

Also associated with

Rating

Supporting scan functions within memories does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Supporting scan functions within memories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supporting scan functions within memories will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4255684