<font color=green>From TMF:MirrorBit stores two bits per cell by creating two distinct storage nodes per cell in a layer of nitride deposited below the cell's gate. By contrast, Intel's StrataFlash approach uses four distinct levels of charge to create two bits per cell.
What is different: compared to 64MB parts from Intel and AMD,
Price: MirrorBit Flash sells at $7.95 vs Intel's StrataFlash at $16. AMD has price advantage.
A. Access time: MirrorBit 90ns, StrataFlash N/A.
P. Access time: MirrorBit 25ns, StrataFlash N/A.
Write speed: MirrorBit 47ns/Byte(16 word/6us), StrataFlash 6000ns/Byte (6us/Byte).
Erase time: MirrorBit 0.64ns/Byte(64KB/100us), 10 times faster than Intel.
Voltage: MirrorBit 3.0v on .18u process(1.8v at yearend), StrataFlash 5v, (1.8v in Aug-2002)
AMD MirrorBit Press
features and specifications:
High-density, 64 Megabit Flash memory, Single 3.0 Volt power supply
Asynchronous access times as fast as 90 nanoseconds
Page mode access times as fast as 25 nanoseconds
16 word performance enhancing write buffer offers programming times as fast as 6 microseconds
Small 64kB sectors with erase times as fast as 100 microseconds, ten times faster than competing products
Minimum of 20 years' data retention at 125 degrees Centigrade
Minimum of 100,000 erase cycles per sector
Pricing
The Am29LV640M MirrorBit product is priced at $7.95 in 10,000 piece quantities.
Intel Sampled StrataFlash
Intel StrataFlash components operate at 5V Vcc with 6 µS/Byte effective write speed.
6 us/Byte = “write 16 words in 768 us”. (http://www.intel.com/pressroom/archive/releases/FL091797.HTM)
AMD MirrorBit roadmap
A 1.8-V MirrorBit part will require AMD to upgrade to a 0.13-micron process at its flash fabs in Japan, The 0.13-micron process will be ready next year at one fab in Japan, and later for the other two flash facilities. the company said. By 2004, that process will support a gigabit-density MirrorBit part. Fab25 will be mass produce 64MB MirrorBit from Q3 and converts to .13u by yearend according to AMD.
May-2002, new Intel 64MB priced $16
converge.com
Intel 1.8 Volt Wireless Flash Memory: Pricing and Availability
The Intel 1.8 Volt Wireless Flash memory will be available in 64- and 32-Mbit densities. The 64-Mbit density is currently sampling and will be in production in August, while the 32-Mbit density will sample in June and be in production in October. A 128-Mbit density chip will also sample later this year and be in production in 2003.
AMD pits MirrorBit against Intel StrataFlash
eetimes.com
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