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FM21L16 Datasheet(PDF) 7 Page - Cypress Semiconductor

Part # FM21L16
Description  2-Mbit (128 K 횞 16) F-RAM Memory
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

FM21L16 Datasheet(HTML) 7 Page - Cypress Semiconductor

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FM21L16
Document Number: 001-86191 Rev. *D
Page 7 of 22
Software Write-Protect Timing
Figure 4. Sequence to Set Write-Protect Blocks [1]
CE
A
WE
DQ
12555
Data
Data
OE
01333
0ECCC
000FF
1FF00
1DAAA
0ECCC
0FF00
00000
1DAAA
16-0
15-0
Figure 5. Sequence to Read Write-Protect Settings [1]
CE
WE
12555
X
Data
OE
01333
0ECCC
000FF
1FF00
0ECCC
00000
1DAAA
tCE (read access time)
1AAAA
A16-0
DQ15-0
Note
1. This sequence requires tAS > 10 ns and address must be stable while CE is LOW.


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