S29AL016D90TFI02 Spansion Inc., S29AL016D90TFI02 Datasheet - Page 19

• Manufacturer Part Number: S29AL016D90TFI02
• Manufacturer: Spansion Inc.

Specifications of S29AL016D90TFI02

• Cell Type: NOR
• Density: 16Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 21/20Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 2.7 to 3.6V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 2M/1M
• Supply Current: 35mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

7.9
7.10
February 27, 2009 S29AL016D_00_A8
Autoselect Mode
Sector Protection/Unprotection
The autoselect mode provides manufacturer and device identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This mode is primarily intended for programming equipment to
automatically match a device to be programmed with its corresponding programming algorithm. However, the
autoselect codes can also be accessed in-system through the command register.
When using programming equipment, the autoselect mode requires V
Address pins A6, A1, and A0 must be as shown in
sector address must appear on the appropriate highest order address bits (see
Table 7.3 on page
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
Definitions on page 25
Legend
L = Logic Low = V
H = Logic High = V
X = Don’t care
Note
The autoselect codes may also be accessed in-system via command sequences. See
The hardware sector protection feature disables both program and erase operations in any sector. The
hardware sector unprotection feature re-enables both program and erase operations in previously protected
sectors.
The device is shipped with all sectors unprotected. Spansion offers the option of programming and protecting
sectors at its factory prior to shipping the device through Spansion’s ExpressFlash™ Service. Contact a
Spansion representative for details.
It is possible to determine whether a sector is protected or unprotected. See
details.
Sector protection/unprotection can be implemented via two methods.
The primary method requires V
programming equipment.
the timing diagram. This method uses standard microprocessor bus cycle timing. For sector unprotect, all
unprotected sectors must first be protected prior to the first sector unprotect write cycle.
The alternate method intended only for programming equipment requires V
This method is compatible with programmer routines written for earlier 3.0 volt-only Spansion flash devices.
Details on this method are provided in a supplement, publication number 21468. Contact a Spansion
representative to request a copy.
SA = Sector Address
Manufacturer ID: Spansion
Device ID:
S29AL016D
(Top Boot Block)
Device ID:
S29AL016D
(Bottom Boot Block)
Sector Protection Verification
Description
IL
IH
18).
Word
Byte
Word
Byte
Mode
Table 7.4 S29AL016D Autoselect Codes (High Voltage Method)
for details on using the autoselect mode.
Table 7.4
D a t a
Figure 7.2 on page 21
CE#
L
L
L
L
L
L
ID
Table 10.1 on page
OE#
shows the remaining address bits that are don’t care. When all necessary
on the RESET# pin only, and can be implemented either in-system or via
L
L
L
L
L
L
S h e e t
WE#
S29AL016D
H
H
H
H
H
H
A19
A12
SA
to
X
X
X
shows the algorithms and
Table
A11
A10
to
X
X
X
X
30. This method does not require V
V
V
V
V
A9
7.4. In addition, when verifying sector protection, the
ID
ID
ID
ID
A8
A7
to
X
X
X
X
A6
L
L
L
L
Table 10.1 on page
A5
A4
to
ID
X
X
X
X
(11.5 V to 12.5 V) on address pin A9.
A3
A2
to
L
L
L
L
Figure 17.12 on page 47
ID
Autoselect Mode on page 19
A1
H
on address pin A9 and OE#.
L
L
L
Table 7.2 on page 17
A0
H
H
L
L
30.
DQ15
DQ8
22h
22h
to
X
X
X
X
X
ID
. See
00h (unprotected)
01h (protected)
Command
DQ7
DQ0
C4h
C4h
01h
49h
49h
to
shows
and
for
19