MX29F080
TABLE 2. MX29F080 BUS OPERATION
Pins
Mode
CE
OE
WE
A0
A1
A6
A9
Q0 ~ Q7
Read Silicon ID
ManufacturerCode(1)
Read Silicon ID
DeviceCode(1)
Read
L
L
H
L
L
X
VID(2)
C2H
L
L
H
H
L
X
VID(2)
D5H
L
H
L
L
L
L
L
X
L
H
X
H
L
A0
X
A1
X
A6
X
A9
DOUT
Standby
X
X
HIGH Z
HIGH Z
DIN(3)
X
OutputDisable
Write
H
X
X
X
X
H
A0
X
A1
X
A6
L
A9
Sector Group Protect (6)
ChipUnprotect(6)
Verify Sector Protect
Reset
VID(2)
VID(2)
L
L
VID(2)
VID(2)
VID(2)
X
L
X
X
H
X
X
H
X
X
H
Code(5)
HIGH Z
X
X
X
X
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 toTable 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. 1.6, NOV. 21, 2002
7
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