172 karma · joined February 27, 2013
You don't need a very accurate clock (quartz) for ~100 Mhz SPI. A ring oscillator is just a chain of inverters. If you want to match the bus frequency accurately you can train a PLL against the signal clock.
Not sure what the point is about the pullup, to flip the bit you need only to overpower the output buffers of the other chip.
Cramming it all in a 0402 would be a stretch but I could see it being possible with the right resources. Having only 2 pins would be pretty useless if you can't snoop the address though. And modern NOR devices on a motherboard is almost certainly using the high speed 4 pin serial interface rather than standard SPI.
I had worked on one of the last TLC NAND designs before the transition to 3D. You could only afford to leak 1 electron per year to meet the data retention spec... TLC did not make it market on that process/node.
Homelessness -- multiple per block
Excrement -- every other block
Public drug use (non pot) -- every other day
Public urination -- once per week
Public defecation -- once per month
I was assaulted at the street corner near our office once in the 1.5 years we were there.
My guess is that the homeless population is just too large to manage any reasonable degree of cleanliness.
The 3D memories will probably see some planar (x-y) scaling, they just don't need all of their scaling from it. 3D scaling will still increase bits/die area, and thus reduce $/bit. If doubling the stacking height doubles capacity but adds 30% to wafer cost with extra processing steps, its still much more efficient than 100% cost for two wafers of the previous design.
Scaling efficiency shouldn't be too dissimilar from planar scaling, at least until the next wall is hit.
How can you argue or prove any relationship between boss and subordinate is consensual?
Risk exposure to lawsuit is incomparable to the relationship case but it was consensual.
3D XPoint is said to be able to stack the storage medium on the die and requires no access transistor -- which "PCM" has. So it is based on PC material but has some new kind of selector.
The 3D/stacking part is important for scaling/density -- even NAND-Flash has hit 2d limits and gone vertical.
Theranos was a good idea, the tragedy was rampant fraud.
CA Law: "An operator of a motorized scooter must be at least 16 years old, possess a valid drivers license or instruction permit, and wear a helmet.
A motorized scooter may be operated on a bicycle path, trail or bikeway, but not on a sidewalk. On the roadway, it must be operated in the bicycle lane, if there is one. On roads without bicycle lanes, motorized scooters may operate where the speed limit is 25 mph or less, and shall be ridden as close to the right hand curb as possible, except to pass or turn left."