SANTA CLARA, Calif., August 14, 1995 -- National Semiconductor today announced it
is expanding its family of Flash products with a 4Mbit Serial Flash device which combines
NAND Flash technology with National's industry standard MICROWIRE interface.
Together these features provide the first true cost-effective solution for low bandwidth file
storage applications.
These applications can be split up into three storage categories: digital voice, digital image
and data logging. Digital voice includes digital answering machines, personal digital
recorders and voice pagers. Digital imaging includes desktop fax machines, laser printers
and hand-held scanners. Data logging includes personal medical data loggers which sample
human vital signs or in remote industrial control units which store a history of certain
parameters.
"To create the most cost-effective solution, National studied the applications and discovered
what tradeoffs could be made in hardware or silicon vs. firmware in the processor," said
Rob Frizzell, Flash marketing manager at National Semiconductor. "The result is the
smallest 4Mbit die for the technology."
File storage applications require that a system keep track of blocks off data through some
form of directory. It is identical to the file management found on hard disk drives where
names, dates, size of files must all be stored in a particular format.
"Now the system designer does not have to be concerned with the memory filing system.
They can place more emphasis on the sequence of how data is captured or manipulated and
not be concerned with how to store the data. In essence, we can make the memory
disappear to the designer," commented Mr. Frizzell.
The first of these embedded systems that will be available is a digital voice recording
solution using the CompactSPEECH(tm) family of processors. These have been tailored
for digital answering machine applications, but find use in many other voice recording
solutions. A single 4Mbit device will handle up to 15 minutes of record time. A maximum
of four devices can be supported by one processor.
CompactSPEECH is a trademark of National Semiconductor Corporation.
MEM95004