MX29F040 Просмотр технического описания (PDF) - Macronix International
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MX29F040 Datasheet PDF : 40 Pages
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MX29F040
TABLE 2. MX29F040 BUS OPERATION
Mode
Pins
CE
OE
WE
A0
A1
A6
Read Silicon ID
L
L
H
L
L
X
Manufacturer Code(1)
Read Silicon ID
L
L
H
H
L
X
Device Code(1)
Read
L
L
H
A0
A1
A6
Standby
H
X
X
X
X
X
Output Disable
L
H
H
X
X
X
Write
L
H
L
A0
A1
A6
Sector Protect with 12V
system(6)
L
V (2)
L
X
X
L
ID
Chip Unprotect with 12V
L
VID(2)
L
X
X
H
system(6)
Verify Sector Protect
L
L
H
X
H
X
with 12V system
Sector Protect without 12V
L
H
L
X
X
L
system (6)
Chip Unprotect without 12V
L
H
L
X
X
H
system (6)
Verify Sector Protect/Unprotect L
L
H
X
H
X
without 12V system (7)
Reset
X
X
X
X
X
X
A9
VID(2)
VID(2)
A9
X
X
A9
V (2)
ID
VID(2)
VID(2)
H
Q0 ~ Q7
C2H
A4H
DOUT
HIGH Z
HIGH Z
DIN(3)
X
X
Code(5)
X
H
X
H
Code(5)
X
HIGH Z
NOTES:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 1.
2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.
3. Refer to Table 1 for valid Data-In during a write operation.
4. X can be VIL or VIH.
5. Code=00H means unprotected.
Code=01H means protected.
A18~A16=Sector address for sector protect.
6. Refer to sector protect/unprotect algorithm and waveform.
Must issue "unlock for sector protect/unprotect" command before "sector protect/unprotect without 12V system" command.
7. The "verify sector protect/unprotect without 12V system" is only following "Sector protect/unprotect without 12V system"
command.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
6
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