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AT25FF321A Datasheet(PDF) 28 Page - Dialog Semiconductor

Part # AT25FF321A
Description  32-Mbit, 1.65 V - 3.6 V SPI Serial Flash Memory with Multi-I/O Support
PDF  119 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

AT25FF321A Datasheet(HTML) 28 Page - Dialog Semiconductor

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Datasheet
2021-08-19
DS-AT25FF321A-181
Revision J
28
© 2021 Dialog Semiconductor
AT25FF321A
32-Mbit, 1.65 V - 3.6 V SPI Serial Flash Memory
with Multi-I/O Support
The protection scheme differs based on the setting of the CMPRT bit described above. Table 3 shows the relationship between
the BPSIZE, BP[2:0], and TB bits when CMPRT = 0. The right-most column shows the protected address range. All addresses
not shown are unprotected.
Table 3: Protection Scheme (CMPRT = 0)
CMPRT
BPSIZE
TB
BP[2:0]
Protected Address Range
0
0
0
3'b000
NONE
0
0
0
3'b001
3F0000h - 3FFFFFh
0
0
0
3'b010
3E0000h - 3FFFFFh
0
0
0
3'b011
3C0000h - 3FFFFFh
0
0
0
3'b100
380000h - 3FFFFFh
0
0
0
3'b101
300000h - 3FFFFFh
0
0
0
3'b110
200000h - 3FFFFFh
0
0
0
3'b111
000000h - 3FFFFFh
0
0
1
3'b000
NONE
0
0
1
3'b001
000000h - 00FFFFh
0
0
1
3'b010
000000h - 01FFFFh
0
0
1
3'b011
000000h - 03FFFFh
0
0
1
3'b100
000000h - 07FFFFh
0
0
1
3'b101
000000h - 0FFFFFh
0
0
1
3'b110
000000h - 1FFFFFh
0
0
1
3'b111
000000h - 3FFFFFh
0
1
0
3'b000
NONE
0
1
0
3'b001
3FF000h - 3FFFFFh
0
1
0
3'b010
3FE000h - 3FFFFFh
0
1
0
3'b011
3FC000h - 3FFFFFh
0
1
0
3'b100
3F8000h - 3FFFFFh
0
1
0
3'b101
3F8000h - 3FFFFFh
0
1
0
3'b110
000000h - 3FFFFFh
0
1
0
3'b111
000000h - 3FFFFFh
0
1
1
3'b000
NONE
0
1
1
3'b001
000000h - 000FFFh
0
1
1
3'b010
000000h - 001FFFh
0
1
1
3'b011
000000h - 003FFFh
0
1
1
3'b100
000000h - 007FFFh
0
1
1
3'b101
000000h - 007FFFh
0
1
1
3'b110
000000h - 3FFFFFh
0
1
1
3'b111
000000h - 3FFFFFh



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