EN29LV400A
TABLE 3. OPERATING MODES
4M FLASH USER MODE TABLE
DQ8-DQ15
Byte#
= VIH
DOUT
DIN
High-Z High-Z
High-Z High-Z
High-Z High-Z
High-Z High-Z
Byte#
= VIL
High-Z
High-Z
Operation
CE#
OE#
WE# Reset#
A0-A17 DQ0-DQ7
Read
Write
L
L
L
H
L
H
H
AIN
AIN
X
DOUT
DIN
High-Z
High-Z
High-Z
High-Z
H
X
X
H
X
CMOS Standby
TTL Standby
Output Disable
Hardware Reset
Temporary
Vcc ± 0.3V
H
L
X
X
X
H
X
Vcc ± 0.3V
H
H
L
X
X
X
Sector
Unprotect
X
X
X
VID
AIN
DIN
DIN
X
Notes:
L=logic low= VIL, H=Logic High= VIH, VID =11 ± 0.5V, X=Don’t Care (either L or H, but not floating!),
DIN=Data In, DOUT=Data Out, AIN=Address In
TABLE 4. DEVICE IDENTIFICTION (Autoselect Codes)
4M FLASH MANUFACTURER/DEVICE ID TABLE
Description
Mode
A17 A11 A92 A8 A7 A6 A5 A1 A0
DQ8
to
DQ7 to
DQ0
CE
OE WE
to
to
to
A12 A10
A2
DQ15
Manufacturer ID:
Eon
L
L
H
X
X
X
X
VID
VID
H1
X
X
X
L
L
X
L
L
L
X
1Ch
Device ID
(top boot
block)
Word
L
L
L
L
L
L
L
L
H
H
H
H
22h
X
B9h
B9h
BAh
BAh
X
H
Byte
Device ID
(bottom boot
block)
Word
Byte
22h
X
X
X
X
VID
VID
X
X
X
X
L
L
X
X
L
H
L
01h
(Protected)
00h
(Unprotected)
X
X
Sector Protection
Verification
L
L
H
SA
H
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.
©2005 Eon Silicon Solution, Inc., www.essi.com.tw
7
Rev. A, Issue Date: 2005/01/07
EON [ EON SILICON SOLUTION INC. ]
