SST49LF080A datasheet(19/49 Pages) SST

номер детали	SST49LF080A

подробное описание детали	8 Mbit LPC Flash

PDF	49 Pages

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производитель	SST [Silicon Storage Technology, Inc]

домашняя страница	http://www.sst.com/

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19 / 49 page

Data Sheet

8 Mbit LPC Flash

SST49LF080A

S71235-00-000

4/03

Data Protection (PP Mode)

The SST49LF080A devices provide both hardware and

software features to protect nonvolatile data from inadvert-

ent writes.

Hardware Data Protection

Noise/Glitch Protection: A WE# pulse of less than 5 ns will

not initiate a Write cycle.

VDD Power Up/Down Detection: The Write operation is

inhibited when VDD is less than 1.5V.

Write Inhibit Mode: Forcing OE# low, WE# high will inhibit

the Write operation. This prevents inadvertent writes during

power-up or power-down.

Software Data Protection (SDP)

The SST49LF080A provides the JEDEC approved Soft-

ware Data Protection scheme for all data alteration opera-

tion, i.e., Program and Erase. Any Program operation

requires the inclusion of a series of three-byte sequence.

The three-byte load sequence is used to initiate the Pro-

gram operation, providing optimal protection from inadvert-

ent Write operations, e.g., during the system power-up or

power-down. Any Erase operation requires the inclusion of

a six-byte load sequence.

SST49LF080A датащи(PDF) 19 Page - Silicon Storage Technology, Inc