EN29LV400
TABLE 3. OPERATING MODES
4M FLASH USER MODE TABLE
DQ8-DQ15
Byte#
Byte#
= V
IL
= V
IH
D
OUT
High-Z
D
IN
High-Z
High-Z High-Z
High-Z High-Z
High-Z High-Z
High-Z High-Z
Operation
Read
Write
CMOS Standby
TTL Standby
Output Disable
Hardware Reset
Temporary
Sector
Unprotect
CE#
L
L
V
cc
±
0.3V
H
L
X
OE#
L
H
X
X
H
X
WE#
H
L
X
X
H
X
Reset#
H
H
V
cc
±
0.3V
H
H
L
A0-A17
A
IN
A
IN
X
X
X
X
DQ0-DQ7
D
OUT
D
IN
High-Z
High-Z
High-Z
High-Z
X
X
X
V
ID
A
IN
D
IN
D
IN
X
Notes:
L=logic low= V
IL
, H=Logic High= V
IH
, V
ID
=11
±
0.5V, X=Don’t Care (either L or H, but not floating!),
D
IN
=Data In, D
OUT
=Data Out, A
IN
=Address In
TABLE 4. DEVICE IDENTIFICTION (Autoselect Codes)
4M FLASH MANUFACTURER/DEVICE ID TABLE
Description
Mode
CE
OE
WE
A17
to
A12
X
X
X
A11
to
A10
X
X
X
A9
2
A8
A7
A6
A5
to
A2
X
X
X
A1
A0
DQ8
to
DQ15
X
22h
X
22h
X
X
DQ7 to
DQ0
1Ch
B9h
B9h
BAh
BAh
01h
(Protected)
Manufacturer ID:
Eon
Device ID
Word
(top boot
block)
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
V
ID
V
ID
V
ID
H
1
X
X
X
L
L
L
L
L
L
L
H
H
Byte
Word
Byte
X
X
Device ID
(bottom boot
block)
Sector Protection
Verification
SA
X
V
ID
X
X
L
X
H
L
X
00h
(Unprotected)
Note:
1. If a manufacturing ID is read with A8=L, the chip will output a configuration code 7Fh. A further Manufacturing ID must be
read with A8=H.
2. A9 = VID is for HV A9 Autoselect mode only. A9 must be
≤
Vcc (CMOS logic level) for Command Autoselect Mode.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
7
©2004 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. C, Issue Date: 2004/03/18
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
