AM29DL323DB-120EI Spansion Inc., AM29DL323DB-120EI Datasheet - Page 18

• Manufacturer Part Number: AM29DL323DB-120EI
• Manufacturer: Spansion Inc.

Specifications of AM29DL323DB-120EI

• Cell Type: NOR
• Density: 32Mb
• Access Time (max): 120ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 22/21Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 3/8.5 to 9.5V
• 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: 4M/2M
• Supply Current: 16mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

Sector/Sector Block Protection and
Unprotection
(Note: For the following discussion, the term “sector”
applies to both sectors and sector blocks. A sector
block consists of two or more adjacent sectors that are
protected or unprotected at the same time (see Tables
8 and 9).
The hardware sector protection feature disables both
program and erase operations in any sector. The hard-
ware sector unprotection feature re-enables both
program and erase operations in previously protected
sectors. Sector protection/unprotection can be imple-
mented via two methods.
Table 8. Top Boot Sector/Sector Block Addresses
December 13, 2005
SA12-SA15
SA16-SA19
SA20-SA23
SA24-SA27
SA28-SA31
SA32-SA35
SA36-SA39
SA40-SA43
SA44-SA47
SA48-SA51
SA52-SA55
SA56-SA59
SA60-SA62
SA8-SA11
SA1-SA3
SA4-SA7
Sector
SA63
SA64
SA65
SA66
SA67
SA68
SA69
SA70
SA0
for Protection/Unprotection
000001XXX,
0001XXXXX
0010XXXXX
0011XXXXX
0100XXXXX
0101XXXXX
0110XXXXX
0111XXXXX
1000XXXXX
1001XXXXX
1010XXXXX
1011XXXXX
1100XXXXX
1101XXXXX
1110XXXXX
111100XXX,
111101XXX,
000000XXX
000010XXX
000011XXX
111110XXX
111111000
111111001
111111010
111111011
111111100
111111101
111111110
111111111
A20–A12
Sector Block Size
192 (3x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
192 (4x64) Kbytes
64 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
Sector/
Am29DL322D/323D/324D
The primary method requires V
only, and can be implemented either in-system or via
programming equipment. Figure 2 shows the algo-
rithms and Figure 25 shows the timing diagram. This
method uses standard microprocessor bus cycle tim-
ing. For sector unprotect, all unprotected sectors must
first be protected prior to the first sector unprotect write
cycle.
The sector unprotect algorithm unprotects all sectors
in parallel. All previously protected sectors must be in-
dividually re-protected. To change data in protected
sectors efficiently, the temporary sector unprotect
f un c t i o n i s ava i l a ble. S e e “ Te m p ora r y S e c t o r
Unprotect”.
SA22–SA19
SA69-SA67
SA66-SA63
SA62-SA59
SA58-SA55
SA54-SA51
SA50-SA47
SA46-SA43
SA42-SA39
SA38-SA35
SA34-SA31
SA30-SA27
SA26-SA23
SA18-SA15
SA14-SA11
Table 9. Bottom Boot Sector/Sector Block
SA10-SA8
Sector
SA70
Addresses for Protection/Unprotection
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
111110XXX,
111101XXX,
1110XXXXX
1101XXXXX
1100XXXXX
1011XXXXX
1010XXXXX
1001XXXXX
1000XXXXX
0111XXXXX
0110XXXXX
0101XXXXX
0100XXXXX
0011XXXXX
0010XXXXX
0001XXXXX
000011XXX,
000010XXX,
111111XXX
111100XXX
000001XXX
000000111
000000110
000000101
000000100
000000011
000000010
000000001
000000000
A20–A12
ID
on the RESET# pin
Sector/Sector Block
192 (3x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
192 (3x64) Kbytes
64 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
Size
17