FEDL2500BFULL-02
OKI Semiconductor
ML2500BTA
Addressable Memory Space for Recording
The total memory space of the ML2500B is divided into 4 blocks, 256 K bit-cell for each block, and a block is
divided into 80 sectors, 3.2 K bit-cell for each sector. Finally, a sector is divided into 16 pages, 200 bit-cell for
each page.
A12 to A11 are assigned to represent a block address, A10 to A4 to represent a sector address, and A3 to A0 to
represent a page address.
TOTAL MEMORY SPACE 1M Bit-Cell
Block Address
0H
1H
2H
3H
(A12 to A11)
A BLOCK SPACE 256K Bit-Cell
Sector Address
(A10 to A4)
00H 01H 02H 03H
4CH 4DH 4EH 4FH
CH DH EH FH
A SECTOR SPACE
3.2K Bit-Cell
Page Address
(A3 to A0)
0H 1H 2H 3H
A PAGE SPACE 200 Bit-Cell
Address Assignment to Define Block, Sector and Page Address for Start and Stop Address
A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Block Address
Sector Address
Page Address
Prohibit specified addresses for Start Address and Stop Address
These below addresses are prohibited when Start Address or Stop Address is specified.
0500H07FFH
0D00H0FFFH
1500H17FFH
1D00H1FFFH
20/27
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