參數(shù)資料
型號(hào)： S29AL032D90TFI042
廠商： Spansion Inc.
英文描述： 32 Megabit CMOS 3.0 Volt-only Flash Memory
中文描述： 32兆位的CMOS 3.0伏只閃存
文件頁數(shù)： 16/69頁
文件大?。?/td> 1970K
代理商： S29AL032D90TFI042
June 13, 2005 S29AL032D_00_A3
S29AL032D
21
Ad vance
Info rmat i o n
The device is shipped with all sectors unprotected. Spansion offers the option of programming
and protecting sectors at its factory prior to shipping the device through the Spansion Express-
Flash Service. Contact a Spansion representative for further details.
It is possible to determine whether a sector is protected or unprotected. See “Autoselect Mode”
for details.
Sector protection/unprotection can be implemented via two methods.
The primary method requires VID on the RESET# pin only, and can be implemented either in-sys-
tem or via programming equipment. Figure 2, on page 25 shows the algorithms and Figure 26,
on page 59 shows the timing diagram. This method uses standard microprocessor bus cycle tim-
ing. For sector unprotect, all unprotected sectors must first be protected prior to the first sector
unprotect write cycle.
The alternate method intended only for programming equipment requires VID on address pin A9
and OE#. This method is compatible with programmer routines written for earlier 3.0 volt-only
Spansion flash devices. Details on this method are provided in a supplement, publication number
21468. Contact a Spansion representative to request a copy.
Table 9. Sector Block Addresses for Protection/Unprotection — Model 00
Sector/Sector Block
A21–A16
Sector/Sector Block Size
SA0
000000
64 Kbytes
SA1-SA3
000001,000010,
000011
192 (3x64) Kbytes
SA4-SA7
000100, 000101,
000110, 000111
256 (4x64) Kbytes
SA8-SA11
001000, 001001,
001010, 001011
256 (4x64) Kbytes
SA12-SA15
001100, 001101,
001110, 001111
256 (4x64) Kbytes
SA16-SA19
010000, 010001,
010010, 010011
256 (4x64) Kbytes
SA20-SA23
010100, 010101,
010110, 010111
256 (4x64) Kbytes
SA24-SA27
011000, 011001,
011010, 011011
256 (4x64) Kbytes
SA28-SA31
011100, 011101,
011110, 011111
256 (4x64) Kbytes
SA32-SA35
100000, 100001,
100010, 100011
256 (4x64) Kbytes
SA36-SA39
100100, 100101,
100110, 100111
256 (4x64) Kbytes
SA40-SA43
101000, 101001,
101010, 101011
256 (4x64) Kbytes
SA44-SA47
101100, 101101,
101110, 101111
256 (4x64) Kbytes
SA48-SA51
110000, 110001,
110010, 110011
256 (4x64) Kbytes
SA52-SA55
110100, 110101,
110110, 110111
256 (4x64) Kbytes
SA56-SA59
111000, 111001,
111010, 111011
256 (4x64) Kbytes
SA60-SA62
111100, 111101,
111110
192 (4x64) Kbytes
SA63
111111
64 Kbytes
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S29AL032D90TFI043 32 Megabit CMOS 3.0 Volt-only Flash Memory
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