Ronald C Steele

Address:

4359 Pkwy Ctr Dr, Grove City, OH 43123

VIN:

3VWRM71K39M004698

Make:

VOLKSWAGEN

Model:

JETTA

Year:

2009

US Patent:

20140071775, Mar 13, 2014

Filed:

Sep 7, 2012

Appl. No.:

13/606342

Inventors:

Donald Albert Evans - Carroll OH, US
Rasoju Veerabadra Chary - Bangalore, IN
Richard John Stephani - Saint Paul MN, US
Bijan Kumar Ghosh - Bangalore, IN
Ronald Brian Steele - Northampton PA, US

Assignee:

LSI Corporation - Milpitas CA

International Classification:

G11C 7/22

US Classification:

365194

Abstract:

A memory tracking circuit controls discharge duration of a tracking bit-line based on (i) a signal received at the far end of a tracking row after a propagation delay and (ii) a signal applied to a transistor-based gate delay. The tracking circuit (i) extends the discharge duration when one or more of (a) the propagation delay and (b) the transistor-based gate delay is shorter than an uncontrolled discharge duration of the tracking bit-line, and (ii) does not extend the discharge duration otherwise. Based on the discharge duration, the tracking circuit activates a reset signal that resets a clock-pulse generator to switch the memory from an access operation to a recess state. Controlling the discharge duration, and consequently the reset signal, based on the propagation delay and the gate delay allows the clock-pulse generator to adjust access times to account for the memory array configuration and process, temperature, and voltage conditions.