MX29F022 Macronix, MX29F022 Datasheet - Page 6

• Manufacturer Part Number: MX29F022
• Description: 2M-BIT[256K x 8]CMOS FLASH MEMORY
• Manufacturer: Macronix

TABLE 2. MX29F022T/B BUS OPERATION
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.
6. Refer to chip protect/unprotect algorithm and waveform.
7. The "verify chip protect/unprotect without 12V sysytem" is only following "chip protect/unprotect without 12V system"
P/N:PM0556
Must issue "unlock for chip protect/unprotect" command before "chip protect/unprotect without 12V system" command.
Mode
Read Silicon ID
Manfacturer Code(1)
Read Silicon ID
Device Code(1)
Read
Standby
Output Disable
Write
Chip Protect with 12V
system(6)
Chip Unprotect with 12V
system(6)
Verify chip Protect
Code(5)
Chip Protect without 12V
system (6)
Chip Unprotect without 12V
system (6)
Verify Chip Protect/Unprotect
without 12V system (7)
Reset
Code=01H means protected.
command.
Pins
with 12V system
CE
L
L
L
L
L
L
L
L
H
L
L
X
OE
L
L
L
X
H
H
V
V
L
H
H
L
X
ID
ID
(2)
(2)
H
WE
H
H
H
X
H
L
L
L
L
L
L
X
6
X
A0
L
H
A0
X
X
A0
X
X
H
X
X
X
MX29F022/022N
A1
L
L
A1
X
A1
X
X
X
X
H
X
X
X
X
A6
X
X
A6
X
X
A6
L
H
H
L
H
X
A9
V
V
A9
X
X
A9
V
V
X
H
H
H
X
ID
ID
ID
ID
(2)
(2)
(2)
(2)
REV. 1.1, JUN. 14, 2001
Code(5)
Q0~Q7
C2H
36H/37H
D
HIGH Z
HIGH Z
D
X
X
V
X
X
HIGH Z
ID
OUT
IN
(2)
(3)