MT28F004B5-1 Micron, MT28F004B5-1 Datasheet - Page 5

• Manufacturer Part Number: MT28F004B5-1
• Description: FLASH MEMORY
• Manufacturer: Micron

TRUTH TABLE (MT28F400B5)
Notes: 1. L = V
4Mb Smart 5 Boot Block Flash Memory
MT28F004B5_3.fm - Rev. 3, Pub. 8/2002
FUNCTION
READ
WRITE/ERASE (EXCEPT BOOT BLOCK)
WRITE/ERASE (BOOT BLOCK)
DEVICE IDENTIFICATION
Standby
Reset
READ (word mode)
READ (byte mode)
Output Disable
ERASE SETUP
ERASE CONFIRM
WRITE SETUP
WRITE (word mode)
WRITE (byte mode)
READ ARRAY
ERASE SETUP
ERASE CONFIRM
ERASE CONFIRM
WRITE SETUP
WRITE (word mode)
WRITE (word mode)
WRITE (byte mode)
WRITE (byte mode)
READ ARRAY
Manufacturer
Compatibility (word
mode)
Manufacturer
Compatibility (byte
mode)
Device (word mode, top
boot)
Device (byte mode, top
boot)
Device (word mode,
bottom boot)
Device (byte mode,
bottom boot)
8
8
2. V
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.
6. When WP# = V
7. A1–A8, A10–A17 = V
8. Value reflects DQ8–DQ15.
PPH
5
5
8
IL
= 5V.
3
3
3, 6
(LOW), H = V
4
4
4, 6
4
4
4, 6
IH
7
RP#
, RP# may be at V
V
V
V
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
HH
HH
HH
IH
2
IL
.
(HIGH), X = V
CE#
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
2
1
OE# WE# WP# BYTE#
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
IH
IL
or V
or V
X
X
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
HH
IH
SMART 5 BOOT BLOCK FLASH MEMORY
.
(“Don’t Care”).
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
5
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
L
A0
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
V
V
V
V
V
V
A9
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
ID
ID
ID
ID
ID
ID
V
V
V
V
V
V
V
V
V
V
PPH
PPH
PPH
PPH
PPH
PPH
PPH
PPH
PPH
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
PP
Data-Out Data-Out Data-Out
Data-Out
10h/40h
10h/40h
Data-In
Data-In
Data-In
Data-In
Data-In
Data-In
High-Z
High-Z
High-Z
DQ0–
89hX
DQ7
D0h
D0h
D0h
20h
20h
89h
70h
70h
71h
71h
FFh
FFh
Data-In
Data-In
Data-In
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
DQ8–
DQ14
00h
44h
44h
X
X
X
X
X
X
X
X
X
X
X
X
©2002, Micron Technology Inc.
4Mb
Data-In
Data-In
Data-In
DQ15/
High-Z
High-Z
High-Z
A - 1
A-1
A-1
A-1
A-1
X
X
X
X
X
X
X
X
X
X
X
X
–
–
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