AM29LV128MH123REI Spansion Inc., AM29LV128MH123REI Datasheet - Page 20

• Manufacturer Part Number: AM29LV128MH123REI
• Manufacturer: Spansion Inc.

Specifications of AM29LV128MH123REI

• Cell Type: NOR
• Density: 128Mb
• Access Time (max): 120ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 24/23Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 3/11.5 to 12.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 16M/8M
• Supply Current: 43mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / Rohs Status: Not Compliant

Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector group protection verifica-
tion, through identifier codes output on DQ7–DQ0.
This mode is primarily intended for programming
equipment to automatically match a device to be pro-
grammed with its corresponding programming algo-
rithm. However, the autoselect codes can also be
accessed in-system through the command register.
When using programming equipment, the autoselect
mode requires V
A6, A3, A2, A1, and A0 must be as shown in
addition, when verifying sector protection, the sector
Legend: L = Logic Low = V
20
Manufacturer ID: AMD
Sector Group
Protection Verification
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
address sector
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects lowest
address sector
Description
Cycle 1
Cycle 2
Cycle 3
ID
on address pin A9. Address pins
CE#
IL
L
L
L
L
L
, H = Logic High = V
OE# WE#
L
L
L
L
L
Table 3. Autoselect Codes, (High Voltage Method)
H
H
H
H
H
A22
A15
SA
to
X
X
X
X
IH
, SA = Sector Address, X = Don’t care.
A14
A10
to
X
X
X
X
X
D A T A
Table 3
V
V
V
V
V
A9
ID
ID
ID
ID
ID
Am29LV128MH/L
A8
A7
to
X
X
X
X
X
In
A6
L
L
L
L
L
S H E E T
address must appear on the appropriate highest order
address bits (see
ing address bits that are don’t care. When all neces-
sary bits have been set as required, the programming
equipment may then read the corresponding identifier
code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in
This method does not require V
Command Sequence”
tion.
A5
A4
to
X
X
X
X
X
A3
A2
to
H
H
L
L
L
L
L
A1
H
H
H
H
H
L
L
A0
H
H
H
H
L
L
L
Table
BYTE#
= V
DQ8 to DQ15
00
22
22
22
X
X
X
IH
on page 29 for more informa-
2).
BYTE#
Table 3
= V
X
X
X
X
X
X
X
IL
25270C7 January 31, 2007
Table 10
ID
18h (not factory locked)
08h (not factory locked)
shows the remain-
. See
98h (factory locked),
88h (factory locked),
00h (unprotected)
01h (protected),
DQ7 to DQ0
and
“Autoselect
7Eh
01h
12h
00h
Table
11.