5

8Mb Smart 3 Boot Block Flash Memory

Micron Technology, Inc., reserves the right to change products or specifications without notice.

Q10_3.p65 – Rev. 3, Pub. 10/01

©2001, Micron Technology, Inc.

8Mb

SMART 3 BOOT BLOCK FLASH MEMORY

3. Operation must be preceded by ERASE SETUP command.

4. Operation must be preceded by WRITE SETUP command.

5. The READ ARRAY command must be issued before reading the array after writing or erasing.

10. Value reflects DQ8–DQ15.

FUNCTION

RP#

CE#

OE#

WE# WP# BYTE# A0

A9

DQ0–DQ7 DQ8–DQ14 DQ15/A - 1

Standby

H

H

X

X

X

X

X

X

X

High-Z

High-Z

High-Z

RESET

L

X

X

X

X

X

X

X

X

High-Z

High-Z

High-Z

READ

READ (word mode)

H

L

L

H

X

H

X

X

X

Data-Out Data-Out Data-Out

READ (byte mode)

H

L

L

H

X

L

X

X

X

Data-Out High-Z

A-1

Output Disable

H

L

H

H

X

X

X

X

X

High-Z

High-Z

High-Z

ERASE SETUP

H

L

H

L

X

X

X

X

X

20h

X

X

HL

HL

X

X

X

X

D0h

X

X

WRITE SETUP

H

L

H

L

X

X

X

X

X

10h/40h

X

X

HL

HL

X

H

X

X

Data-In

Data-In

Data-In

HL

HL

X

L

X

X

Data-In

X

A-1

HL

HL

X

X

X

X

X

FFh

X

X

ERASE SETUP

H

L

H

L

X

X

X

X

X

20h

X

X

LH

L

X

X

X

X

D0h

X

X

HL

HL

H

X

X

X

D0h

X

X

WRITE SETUP

H

L

H

L

X

X

X

X

X

10h/40h

X

X

LH

L

X

H

X

X

Data-In

Data-In

Data-In

HL

HL

H

H

X

X

Data-In

Data-In

Data-In

LH

L

X

L

X

X

Data-In

X

A-1

HL

HL

H

L

X

X

Data-In

X

A-1

HL

HL

X

X

X

X

X

FFh

X

X

Manufacturer Compatibility

H

L

L

H

X

H

L

X

89h

00h

–

Manufacturer Compatibility

H

L

L

H

X

L

L

X

89h

High-Z

X

(byte mode)

HL

L

H

X

H

H

X

9Ch

88h

–

Device (byte mode, top boot)

H

L

L

H

X

L

H

X

9Ch

High-Z

X

HL

L

H

X

H

H

X

9Dh

88h

–

Device (byte mode, bottom boot)

H

L

L

H

X

L

H

X

9Dh

High-Z

X