參數(shù)資料
型號(hào)： D640H90VI
廠商： Spansion Inc.
英文描述： 64 Megabit (8 M x 8-Bit/4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory
中文描述： 64兆位（8米× 8位/ 4米x 16位），3.0伏的CMOS只，同步讀/寫(xiě)閃存
文件頁(yè)數(shù)： 15/54頁(yè)
文件大?。?/td> 850K
代理商： D640H90VI
June 7, 2005
Am29DL640H
13
Note:
The address range is A21:A-1 in byte mode (BYTE#=V
IL
) or A21:A0 in word mode (BYTE#=V
IH
).
Table 3.
Bank Address
Table 4.
Secured Silicon Sector Addresses
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equip-
ment to automatically match a device to be pro-
grammed with its corresponding programming
algorithm. However, the autoselect codes can also be
accessed in-system through the command register.
When using programming equipment, the autoselect
mode requires
V
ID
on address pin A9. Address pins
must be as shown in Table 5. In addition, when verify-
ing sector protection, the sector address must appear
on the appropriate highest order address bits (see
Table 2). Table 5 shows the remaining address bits
that are don’t care. When all necessary bits have been
set as required, the programming equipment may then
read the corresponding identifier code on DQ7–DQ0.
However, the autoselect codes can also be accessed
in-system through the command register, for instances
when the Am29DL640 is erased or programmed in a
system without access to high voltage on the A9 pin.
The command sequence is illustrated in Table 12.
Note that if a Bank Address (BA) on address bits A21,
A20, and A19 is asserted during the third write cycle of
the autoselect command, the host system can read
autoselect data from that bank and then immediately
read array data from another bank, without exiting the
autoselect mode.
Bank 4
SA119
SA120
SA121
SA122
SA123
SA124
SA125
SA126
SA127
SA128
SA129
SA130
SA131
SA132
SA133
SA134
SA135
SA136
SA137
SA138
SA139
SA140
SA141
1110000xxx
1110001xxx
1110010xxx
1110011xxx
1110100xxx
1110101xxx
1110110xxx
1110111xxx
1111000xxx
1111001xxx
1111010xxx
1111011xxx
1111100xxx
1111101xxx
1111110xxx
1111111000
1111111001
1111111010
1111111011
1111111100
1111111101
1111111110
1111111111
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
8/4
8/4
8/4
8/4
8/4
8/4
8/4
8/4
700000h–70FFFFh
710000h–71FFFFh
720000h–72FFFFh
730000h–73FFFFh
740000h–74FFFFh
750000h–75FFFFh
760000h–76FFFFh
770000h–77FFFFh
780000h–78FFFFh
790000h–79FFFFh
7A0000h–7AFFFFh
7B0000h–7BFFFFh
7C0000h–7CFFFFh
7D0000h–7DFFFFh
7E0000h–7EFFFFh
7F0000h–7F1FFFh
7F2000h–7F3FFFh
7F4000h–7F5FFFh
7F6000h–7F7FFFh
7F8000h–7F9FFFh
7FA000h–7FBFFFh
7FC000h–7FDFFFh
7FE000h–7FFFFFh
380000h–387FFFh
388000h–38FFFFh
390000h–397FFFh
398000h–39FFFFh
3A0000h–3A7FFFh
3A8000h–3AFFFFh
3B0000h–3B7FFFh
3B8000h–3BFFFFh
3C0000h–3C7FFFh
3C8000h–3CFFFFh
3D0000h–3D7FFFh
3D8000h–3DFFFFh
3E0000h–3E7FFFh
3E8000h–3EFFFFh
3F0000h–3F7FFFh
3F8000h–3F8FFFh
3F9000h–3F9FFFh
3FA000h–3FAFFFh
3FB000h–3FBFFFh
3FC000h–3FCFFFh
3FD000h–3FDFFFh
3FE000h–3FEFFFh
3FF000h–3FFFFFh
Bank
1
2
3
4
A21–A19
000
001, 010, 011
100, 101, 110
111
Device
Am29DL640H
Sector Size
256 bytes
(x8)
Address Range
000000h–0000FFh
(x16)
Address Range
000000h–00007Fh
Table 2.
Am29DL640H Sector Architecture (Continued)
Bank
Sector
Sector Address
A21–A12
Sector Size
(Kbytes/Kwords)
(x8)
Address Range
(x16)
Address Range
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