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MB84VD23381FJ ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 13 Page - Fujitsu Component Limited.

๋ถ€ํ’ˆ๋ช… MB84VD23381FJ
์ƒ์„ธ๋‚ด์šฉ  Stacked MCP (Multi-Chip Package) FLASH MEMORY & FCRAM
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MB84VD23381FJ ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 13 Page - Fujitsu Component Limited.

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MB84VD23381FJ-80
12
FlexBankTM Architecture
Example of Virtual Banks Combination
Note : When multiple sector erase over several banks is operated, the system cannot read out of the bank to which
a sector being erased belongs. For example, suppose that erasing is taking place at both Bank A and Bank B,
neither Bank A nor Bank B is read out (they would output the sequence flag once they were selected.)
Meanwhile the system would get to read from either Bank C or Bank D.
Simultaneous Operation
* : By writing erase suspend command on the bank address of sector being erased, the erase operation gets
suspended so that it enables reading from or programming the remaining sectors.
Note: Bank 1 and Bank 2 are divided for the sake of convenience at Simultaneous Operation. Actually, the Bank
consists of 4 banks, Bank A, Bank B, BankC and Bank D. Bank Address (BA) meant to specify each of the
Banks.
Bank
Splits
Bank 1
Bank 2
Volume
Combination
Volume
Combination
1
8 Mbit
Bank A
56 Mbit
Remainder (Bank B, C, D)
2
24 Mbit
Bank B
40 Mbit
Remainder (Bank A, C, D)
3
24 Mbit
Bank C
40 Mbit
Remainder (Bank A, B, D)
4
8 Mbit
Bank D
56 Mbit
Remainder (Bank A, B, C)
Bank
Splits
Bank 1
Bank 2
Volume Combination
Sector Size
Volume Combination
Sector Size
18 Mbit
Bank A
8
ร— 8 Kbyte/4 Kword
+
15
ร— 64 Kbyte/32 Kword
56 Mbit
Bank B
+
Bank C
+
Bank D
8
ร— 8 Kbyte/4 Kword
+
111
ร— 64 Kbyte/32 Kword
216 Mbit
Bank A
+
Bank D
16
ร— 8 Kbyte/4 Kword
+
30
ร— 64 Kbyte/32 Kword
48 Mbit
Bank B
+
Bank C
96
ร— 64 Kbyte/32 Kword
3
24 Mbit
Bank B
48
ร— 64 Kbyte/32 Kword 40 Mbit
Bank A
+
Bank C
+
Bank D
16
ร— 8 Kbyte/4 Kword
+
78
ร— 64 Kbyte/32 Kword
432 Mbit
Bank A
+
Bank B
8
ร— 8 Kbyte/4 Kword
+
63
ร— 64 Kbyte/32 Kword
32 Mbit
Bank C
+
Bank D
8
ร— 8 Kbyte/4 Kword
+
63
ร— 64 Kbyte/32 Kword
Case
Bank 1 Status
Bank 2 Status
1
Read mode
Read mode
2
Read mode
Autoselect mode
3
Read mode
Program mode
4
Read mode
Erase mode *
5
Autoselect mode
Read mode
6
Program mode
Read mode
7
Erase mode *
Read mode


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