J
Jim Thompson
- Jan 1, 1970
- 0
Winfield Hill wrote...
Unlike some of the right-wing advocates here on s.e.d., I'm not one
to see things in black and white.
Oh, BARF! Gray is for political hacks... black and white is for
engineering.
While faster ram memory might help
solve WayneL's problem, it's also possible slower memory might be the
solution. That's because some slow memory ICs will store the data-bus
contents 50's of nanoseconds before the end of the WR* strobe pulse.
Slow memory tends to have a longer data-change setup time. In some
designs, slow RAM available when the design was tested might have led
to an unworthy confidence. Later on, new, faster RAM can destroy the
design's safety margins, and render late production a fragile product.
As in so many issues, the precise details determine the exact answer.
Modern designs could potentially suffer from these same issues, but
many employ a power solution, that wasn't available in the old days.
Good design does NOT rely on set-up-and-hold times as part of the
system timing.
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
Global Warming is God's gift to the Blue States ;-)