MB84VP23481FK-70 Datasheet, PDF (13/67 Pages) SPANSION – 64M (X16) Page FLASH MEMORY & 32M (X16) Mobile FCRAMTM

MB84VP23481FK-70
• FlexBank^TM Architecture
Bank
Splits
Volume
Bank 1
Combination
1
8 Mbit
Bank A
2
24 Mbit
Bank B
3
24 Mbit
Bank C
4
8 Mbit
Bank D
Volume
56 Mbit
40 Mbit
40 Mbit
56 Mbit
Bank 2
Combination
Remainder (Bank B, C, D)
Remainder (Bank A, C, D)
Remainder (Bank A, B, D)
Remainder (Bank A, B, C)
• Example of Virtual Banks Combination
Bank
Bank 1
Splits _{Volume Combination}
Sector Size
Bank 2
Volume Combination
Sector Size
Bank B
8 × 8 Kbyte/4 Kword
+
8 × 8 Kbyte/4 Kword
1 8 Mbit Bank A
+
56 Mbit Bank C
+
15 × 64 Kbyte/32 Kword
+
111 × 64 Kbyte/32 Kword
Bank D
Bank A
16 × 8 Kbyte/4 Kword
Bank B
2 16 Mbit
+
+
48 Mbit
+
Bank D 30 × 64 Kbyte/32 Kword
Bank C
96 × 64 Kbyte/32 Kword
3 24 Mbit
Bank B
48 × 64 Kbyte/32 Kword 40 Mbit
Bank A
+
Bank C
+
Bank D
16 × 8 Kbyte/4 Kword
+
78 × 64 Kbyte/32 Kword
4 32 Mbit
Bank A
+
Bank B
8 × 8 Kbyte/4 Kword
+
32 Mbit
63 × 64 Kbyte/32 Kword
Bank C
+
Bank D
8 × 8 Kbyte/4 Kword
+
63 × 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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