MX29F080
TABLE 2. MX29F080 BUS OPERATION
Pins
Mode
Read Silicon ID
Manfacturer Code(1)
Read Silicon ID
Device Code(1)
Read
Standby
Output Disable
Write
Sector Group Protect (6)
Chip Unprotect(6)
Verify Sector Protect
Reset
L
H
L
L
L
L
L
X
L
X
H
H
V
ID
(2)
V
ID
(2)
L
X
H
X
H
L
L
L
H
X
A0
X
X
A0
X
X
X
X
A1
X
X
A1
X
X
H
X
A6
X
X
A6
L
H
X
X
A9
X
X
A9
V
ID
(2)
V
ID
(2)
V
ID
(2)
X
D
OUT
HIGH Z
HIGH Z
D
IN
(3)
X
X
Code(5)
HIGH Z
L
L
H
H
L
X
V
ID
(2)
D5H
CE
L
OE
L
WE
H
A0
L
A1
L
A6
X
A9
V
ID
(2)
Q0 ~ Q7
C2H
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 13V.
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.
6. A19~A17=Sector group address for sector group protect.
Refer to sector group protect/chip unprotect algorithm and waveform.
P/N:PM0579
REV. 1.4, JAN. 16, 2002
7
MCNIX [ MACRONIX INTERNATIONAL ]
