Common Flash Interface (CFI)
M29W640FT, M29W640FB
Table 27. Primary Algorithm-specific Extended Query table
Address
Data
Description
Value
x16
x8
40h
41h
42h
43h
44h
80h 0050h
82h 0052h
84h 0049h
"P"
Primary Algorithm extended Query table unique ASCII string
“PRI”
"R"
"I"
86h 0031h Major version number, ASCII
88h 0033h Minor version number, ASCII
“1”
"3"
Address Sensitive Unlock (bits 1 to 0)
8Ah 0000h 00h = required, 01h = not required
Silicon Revision Number (bits 7 to 2)
45h
Yes
Erase Suspend
8Ch 0002h
46h
47h
48h
49h
2
4
00h = not supported, 01h = Read only, 02 = Read and Write
Block Protection
8Eh 0004h
90h 0001h
92h 0004h
00h = not supported, x = number of blocks per protection group
Temporary Block Unprotect
Yes
04
00h = not supported, 01h = supported
Block Protect /Unprotect
04 = M29W640F
4Ah
4Bh
94h 0000h Simultaneous Operations, 00h = not supported
96h 0000h Burst Mode: 00h = not supported, 01h = supported
No
No
Page Mode: 00h = not supported, 01h = 4 page word, 02h = 8
4Ch
98h 0001h
page word
Yes
VPP Supply Minimum Program/Erase voltage
4Dh
9Ah 00B5h bit 7 to 4 HEX value in volts
bit 3 to 0 BCD value in 100 mV
11.5V
VPP Supply Maximum Program/Erase voltage
4Eh
4Fh
50h
9Ch 00C5h bit 7 to 4 HEX value in volts
bit 3 to 0 BCD value in 100 mV
12.5V
–
Top/Bottom Boot Block Flag
9Eh 0002h 02h = Bottom Boot device
0003h 03h = Top Boot device
Program Suspend
A0h 0001h 00h = Not Supported
01h = Supported
Suppor
ted
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NUMONYX [ NUMONYX B.V ]
