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SST39WF800A-90-4C-B3KE(Microchip Technology Inc) La description
Additional information about the SST39WF800A-90-4C-B3KE: The SST39WF800A device is a 512K x16 CMOS MultiPurpose
Flash (MPF) manufactured with SST’s proprietary,
high performance CMOS SuperFlash technology. The
split-gate cell design and thick-oxide tunneling injector
attain better reliability and manufacturability compared with
alternate approaches. The SST39WF800A writes (Program
or Erase) with a 1.65-1.95V power supply. This
device conforms to JEDEC standard pin assignments for
Featuring high-performance Word-Program, the
SST39WF800A device provides a typical Word-Program
time of 28 μsec. The device uses Toggle Bit or Data# Polling
to detect the completion of the Program or Erase operation.
To protect against inadvertent writes, it has on-chip
hardware and software data protection schemes.
Designed, manufactured, and tested for a wide spectrum of
applications, this device is offered with a guaranteed typical
endurance of 100,000 cycles. Data retention is rated at
greater than 100 years.
The SST39WF800A device is suited for applications that
require convenient and economical updating of program,
configuration, or data memory. For all system applications,
it significantly improves performance and reliability, while
lowering power consumption. It inherently uses less energy
during Erase and Program than alternative flash technologies.
When programming a flash device, the total energy
consumed is a function of the applied voltage, current, and
time of application. Since for any given voltage range, the
SuperFlash technology uses less current to program and
has a shorter erase time, the total energy consumed during
any Erase or Program operation is less than alternative
flash technologies. These devices also improve flexibility
while lowering the cost for program, data, and configuration
The SuperFlash technology provides fixed Erase and Program
times, independent of the number of Erase/Program
cycles that have occurred. Therefore the system software
or hardware does not have to be modified or de-rated as is
necessary with alternative flash technologies, whose Erase
and Program times increase with accumulated Erase/Program
To meet surface mount requirements, the SST39WF800A
is offered in a 48-ball TFBGA package and a 48-ball MicroPackage.
See Figure 3 and Figure 2 for pin assignments.