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X28VC256DM-90 Fiches technique(PDF) 4 Page - Xicor Inc.

No de pièce X28VC256DM-90
Description  5 Volt, Byte Alterable E2PROM
PDF  24 Pages
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Fabricant  XICOR [Xicor Inc.]
Site Internet  http://www.xicor.com
Logo XICOR - Xicor Inc.

X28VC256DM-90 Fiches technique(HTML) 4 Page - Xicor Inc.

  X28VC256DM-90 Datasheet HTML 1Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 2Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 3Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 4Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 5Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 6Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 7Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 8Page - Xicor Inc. X28VC256DM-90 Datasheet HTML 9Page - Xicor Inc. Next Button
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X28VC256
4
DATA POLLING I/O7
Figure 2.
DATA Polling Bus Sequence
3869 FHD F12
Figure 3.
DATA Polling Software Flow
DATA Polling can effectively halve the time for writing to
the X28VC256. The timing diagram in Figure 2 illus-
trates the sequence of events on the bus. The software
flow diagram in Figure 3 illustrates one method of
implementing the routine.
3869 FHD F13
WRITE DATA
SAVE LAST DATA
AND ADDRESS
READ LAST
ADDRESS
IO7
COMPARE?
X28VC256
READY
NO
YES
WRITES
COMPLETE?
NO
YES
CE
OE
WE
I/O7
X28VC256
READY
LAST
WRITE
HIGH Z
VOL
VIH
A0–A14
An
An
An
An
An
An
VOH
An



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