MB84VD22280FA-70 Datasheet, PDF (12/47 Pages) SPANSION – 32M (X16) FLASH MEMORY & 8M (X16) STATIC RAM

MB84VD22280FA/FE-70/MB84VD22290FA/FE-70
Bank
Splits
1
2
3
4
Volume
4 Mbit
12 Mbit
12 Mbit
4 Mbit
FlexBank^TM Architecture Table
Bank 1
Combination
Bank A
Bank B
Bank C
Bank D
Volume
28 Mbit
20 Mbit
20 Mbit
28 Mbit
Bank 2
Combination
Bank B, C, D
Bank A, C, D
Bank A, B, D
Bank A, B, C
Example of Virtual Banks Combination Table
Bank
Bank 1
Splits _{Volume Combination}
Sector Size
Bank 2
Volume Combination
Sector Size
1 4 Mbit
Bank A
8 × 8 Kbyte/4 Kword
+
28 Mbit
7 × 64 Kbyte/32 Kword
Bank B
+
Bank C
+
Bank D
56 × 64 Kbyte/32 Kword
2 8 Mbit
Bank A
+
Bank D
8 × 8 Kbyte/4 Kword
+
24 Mbit
15 × 64 Kbyte/32 Kword
Bank B
+
Bank C
48 × 64 Kbyte/32 Kword
3 16 Mbit
Bank A
+
Bank B
8 × 8 Kbyte/4 Kword
+
16 Mbit
31 × 64 Kbyte/32 Kword
Bank C
+
Bank D
32 × 64 Kbyte/32 Kword
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.
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