S29AS008J70BFI030 Spansion Inc., S29AS008J70BFI030 Datasheet - Page 19

• Manufacturer Part Number: S29AS008J70BFI030
• Description: IC 8M FLASH MEMORY
• Manufacturer: Spansion Inc.

Specifications of S29AS008J70BFI030

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom/Top
• Address Bus: 20/19Bit
• Operating Supply Voltage (typ): 1.8V
• Operating Temp Range: -40C to 85C
• Package Type: FBGA
• Program/erase Volt (typ): 1.65 to 1.95V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 1.65V
• Operating Supply Voltage (max): 1.95V
• Word Size: 8/16Bit
• Number Of Words: 1M/512K
• Supply Current: 12mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

7.11
July 16, 2009 S29AS008J_00_08
Sector Group Protection/Unprotection
The hardware sector group protection feature disables both program and erase operations in any sector
group (see
re-enables both program and erase operations in previously protected sector groups. Sector group
protection/unprotection can be implemented via two methods.
Sector group protection/unprotection requires VID on the RESET# pin only, and can be implemented either
in-system or via programming equipment.
on page 49
sector group unprotect, all unprotected sector groups must first be protected prior to the first sector group
unprotect write cycle.
The device is shipped with all sector groups unprotected. Spansion offers the option of programming and
protecting sector groups at its factory prior to shipping the device through Spansion Programming Service.
Contact a Spansion representative for details.
It is possible to determine whether a sector group is protected or unprotected. See
on page 16
Sector / Sector Block
Sector / Sector Block
SA12-SA13
SA8-SA11
SA0-SA3
SA4-SA7
SA11-SA14
SA15-SA18
SA19-SA22
SA9-SA10
SA14
SA15
SA16
SA17
SA18
SA19
SA20
SA21
SA22
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
Table 7.3 on page 17
shows the timing diagram. This method uses standard microprocessor bus cycle timing. For
for details.
Table 7.6 AS008J Bottom Boot Device Sector/Sector Group Protection
Table 7.5 AS008J Top Boot Device Sector/Sector Group Protection
A18
0
0
1
1
1
1
1
1
1
1
1
1
1
D a t a
A18
0
0
0
0
0
0
0
0
0
0
0
1
1
A17
0
1
0
1
1
1
1
1
1
1
1
1
1
to
A17
0
0
0
0
0
0
0
0
0
0
1
0
1
S h e e t
Table 7.6 on page
S29AS008J
A16
X
X
X
0
1
1
1
1
1
1
1
1
1
A16
Figure 7.1 on page 20
X
X
X
0
0
0
0
0
0
0
0
0
1
A15
X
X
X
X
A15
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
X
X
X
X
19). The hardware sector group unprotection feature
A14
A14
X
X
X
X
X
0
0
0
0
1
1
1
1
X
X
X
X
X
0
0
0
0
1
1
1
1
shows the algorithms and
A13
A13
X
X
X
X
X
0
0
1
1
0
0
1
1
X
X
X
X
X
0
0
1
1
0
0
1
1
A12
A12
0
1
0
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
Autoselect Mode
Sector / Sector Block Size
Sector / Sector Block Size
128 (2x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
128 (2x64) Kbytes
64 Kbytes
64 Kbytes
Figure 18.11
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
19