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FT28HC256 Datasheet(PDF) 4 Page - Force Technologies Ltd

Part # FT28HC256
Description  5 Volt, Byte Alterable EEPROM
PDF  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FORCE [Force Technologies Ltd]
Direct Link   https://www.forcetechnologies.co.uk
Logo FORCE - Force Technologies Ltd

FT28HC256 Datasheet(HTML) 4 Page - Force Technologies Ltd

  FT28HC256 Datasheet HTML 1Page - Force Technologies Ltd FT28HC256 Datasheet HTML 2Page - Force Technologies Ltd FT28HC256 Datasheet HTML 3Page - Force Technologies Ltd FT28HC256 Datasheet HTML 4Page - Force Technologies Ltd FT28HC256 Datasheet HTML 5Page - Force Technologies Ltd FT28HC256 Datasheet HTML 6Page - Force Technologies Ltd FT28HC256 Datasheet HTML 7Page - Force Technologies Ltd FT28HC256 Datasheet HTML 8Page - Force Technologies Ltd FT28HC256 Datasheet HTML 9Page - Force Technologies Ltd Next Button
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background image
FT28HC256
Characteristics subject to change without notice.
4 of 23
REV 1.0
DATA POLLING I/O7
Figure 2. DATA Polling Bus Sequence
CE
OE
WE
I/O7
FT28HC256
Ready
Last
Write
HIGH Z
VOL
VIH
A0–A14
An
An
An
An
An
An
VOH
An
Figure 3. DATA Polling Software Flow
DATA Polling can effectively halve the time for writing to
the FT28HC256. The timing diagram in Figure 2 illus-
trates the sequence of events on the bus. The software
flow diag ram in Figure 3 illustrates one method of
implementing the routine.
Write Data
Save Last Data
and Address
Read Last
Address
IO7
Compare?
FT28HC256
No
Yes
Writes
Complete?
No
Yes
Ready



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