7

P/N:PM0579

REV. 1.6, NOV. 21, 2002

MX29F080

Pins

Mode

CE

OE

WE

A0

A1

A6

A9

Q0 ~ Q7

Read Silicon ID

L

L

H

L

L

X

V

C2H

Manufacturer Code(1)

Read Silicon ID

L

L

H

H

L

X

V

D5H

Device Code(1)

Read

L

L

H

A0

A1

A6

A9

D

OUT

Standby

H

X

X

X

X

X

X

HIGH Z

Output Disable

L

H

H

X

X

X

X

HIGH Z

Write

L

H

L

A0

A1

A6

A9

D

Sector Group Protect (6)

L

V

L

X

X

L

V

X

Chip Unprotect(6)

L

V

L

X

X

H

V

X

Verify Sector Protect

L

L

H

X

H

X

V

Code(5)

Reset

X

X

X

X

X

X

X

HIGH Z

TABLE 2. MX29F080 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 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.