MT28F004B5-1 Micron, MT28F004B5-1 Datasheet - Page 6

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

TRUTH TABLE (MT28F004B5)
Notes: 1. L = V
4Mb Smart 5 Boot Block Flash Memory
MT28F004B5_3.fm - Rev. 3, Pub. 8/2002
FUNCTION
Standby
RESET
READ
READ
Output Disable
WRITE/ERASE (EXCEPT BOOT BLOCK)2
ERASE SETUP
ERASE CONFIRM
WRITE SETUP
WRITE
READ ARRAY
WRITE/ERASE (BOOT BLOCK)
ERASE SETUP
ERASE CONFIRM
ERASE CONFIRM
WRITE SETUP
WRITE
WRITE
READ ARRAY
DEVICE IDENTIFICATION
Manufacturer Compatibility
Device (top boot)
Device (bottom boot)
4
4
4, 6
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–A18 = V
PPH
5
5
IL
= 5V.
3
3
3, 6
, H = V
IH
, X = V
IH
7
, RP# may be at V
2
IL
IL
.
or V
RP#
V
V
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
HH
HH
IH
.
1
IH
CE#
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
or V
HH
SMART 5 BOOT BLOCK FLASH MEMORY
.
OE#
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
L
L
L
L
6
WE#
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
L
L
L
L
WP#
X
X
X
X
X
X
X
X
X
X
X
H
X
X
H
X
X
X
X
A0
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
A9
V
V
V
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
ID
ID
ID
V
V
V
V
V
V
V
PPH
PPH
PPH
PPH
PPH
PPH
X
X
X
X
X
X
X
X
X
X
X
X
X
PP
©2002, Micron Technology Inc.
DQ0–DQ7
Data-Out
10h/40h
10h/40h
Data-In
Data-In
Data-In
4Mb
High-Z
High-Z
High-Z
D0h
D0h
D0h
20h
20h
89h
78h
79h
FFh
FFh