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PDF ( 数据手册 , 数据表 ) A82DL1632U

零件编号 A82DL1632U
描述 (A82DL16x2U) Stacked Multi-Chip Package (MCP) Flash Memory and SRAM
制造商 AMIC Technology
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A82DL1632U 数据手册, 描述, 功能
A82DL16x2T(U) Series
Stacked Multi-Chip Package (MCP) Flash Memory and SRAM,
A82DL16x2T(U) 16 Megabit (2Mx8 Bit/1Mx16 Bit) CMOS 3.3 Volt-only,
Simultaneous Operation Flash Memory and 2M (128Kx16 Bit) Static RAM
Preliminary
www.DataSheet4U.com
Document Title
Stacked Multi-Chip Package (MCP) Flash Memory and SRAM, A82DL16x2T(U) 16 Megabit
(2Mx8 Bit/1Mx16 Bit) CMOS 3.3 Volt-only, Simultaneous Operation Flash Memory and 2M
(128Kx16 Bit) Static RAM
Revision History
Rev. No.
0.0
0.1
History
Initial issue
Update Figure 23
Issue Date
March 25, 2005
May 17, 2005
Remark
Preliminary
PRELIMINARY (May, 2005, Version 0.1)
AMIC Technology, Corp.







A82DL1632U pdf, 数据表
SRAM Block Diagram
A0
A15
A16
www.DataSheet4U.com
I/O0
I/O7
DECODER
512 X 4096
MEMORY ARRAY
INPUT
DATA
CIRCUIT
COLUMN I/O
A82DL16x2T(U) Series
VCC_S
VSS
INPUT
DATA
CIRCUIT
I/O8
I/O15
CE1_S
CE2_S
LB_S
UB_S
OE
WE
CONTROL
CIRCUIT
PRELIMINARY (May, 2005, Version 0.1)
7
AMIC Technology, Corp.







A82DL1632U equivalent, schematic
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 6 and 7).
Table 6. Top Boot Sector/Sector Block Addresses for
Protection/Unprotection
Sector /
Sector Block
SA0
www.DataSheetS4UA1.c-oSmA3
SA4-SA7
SA8-SA11
SA12-SA15
SA16-SA19
SA20-SA23
SA24-SA27
SA28-SA30
SA31
SA32
SA33
SA34
SA35
SA36
SA37
SA38
A19–A12
00000XXX
00001XXX,
00010XXX,
00011XXX
001XXXXX
010XXXXX
011XXXXX
100XXXXX
101XXXXX
110XXXXX
11100XXX,
11101XXX,
11110XXX
11111000
11111001
11111010
11111011
11111100
11111101
11111110
11111111
Sector / Sector Block Size
64 Kbytes
192 (3x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
256 (4x64) Kbytes
192 (3x64) Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
8 Kbytes
Table 7. Bottom Boot Sector/Sector Block Addresses for
Protection/Unprotection
Sector /
Sector Block
SA38
SA37-SA35
SA34-SA31
A19–A12
11111XXX
11110XXX,
11101XXX,
11100XXX
110XXXXX
Sector / Sector Block Size
64 Kbytes
192 (3x64) Kbytes
256 (4x64) Kbytes
SA30-SA27
101XXXXX
256 (4x64) Kbytes
SA26-SA23
100XXXXX
256 (4x64) Kbytes
SA22-SA19
011XXXXX
256 (4x64) Kbytes
SA18-SA15
010XXXXX
256 (4x64) Kbytes
SA14-SA11
SA10-SA8
SA7
001XXXXX
00001XXX,
00010XXX,
00011XXX
00000111
256 (4x64) Kbytes
192 (3x64) Kbytes
8 Kbytes
SA6 00000110
8 Kbytes
SA5 00000101
8 Kbytes
SA4 00000100
8 Kbytes
SA3 00000011
8 Kbytes
SA2 00000010
8 Kbytes
SA1 00000001
8 Kbytes
SA0 00000000
8 Kbytes
A82DL16x2T(U) Series
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. Sector
protection and unprotection can be implemented via two
methods.
The primary method requires VID on the RESET pin only,
and can be implemented either in-system or via
programming equipment. Figure 2 shows the algorithms and
Figure 23 shows 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 sector unprotect algorithm unprotects all sectors in
parallel. All previously protected sectors must be individually
re-protected. To change data in protected sectors efficiently,
the temporary sector unprotect function is available. See
“Temporary Sector/Sector Block Unprotect”.
The alternate method for protection and unprotection is by
software temporary sector /sector block unprotect command.
See Figure 2 for Command Flow.
The device is shipped with all sectors unprotected.
It is possible to determine whether a sector is protected or
unprotected. See the Autoselect Mode section for details.
Write Protect ( WP /ACC)
The Write Protect function provides a hardware method of
protecting certain boot sectors without using VID. This
function is one of two provided by the WP /ACC pin.
If the system asserts VIL on the WP /ACC pin, the device
disables program and erase functions in the two “outermost”
8 Kbyte boot sectors independently of whether those sectors
were protected or unprotected using the method described in
“Sector/Sector Block Protection and Unprotection”. The two
outermost 8 Kbyte boot sectors are the two sectors
containing the lowest addresses in a bottom-boot-configured
device, or the two sectors containing the highest addresses
in a top-boot-configured device.
If the system asserts VIH on the WP /ACC pin, the device
reverts to whether the two outermost 8 Kbyte boot sectors
were last set to be protected or unprotected. That is, sector
protection or unprotection for these two sectors depends on
whether they were last protected or unprotected using the
method described in “Sector/Sector Block Protection and
Unprotection”.
Note that the WP /ACC pin must not be left floating or
unconnected; inconsistent behavior of the device may result.
Temporary Sector/Sector Block Unprotect
(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 6 and 7).
This feature allows temporary unprotection of previously
protected sectors to change data in-system. The Sector
Unprotect mode is activated by setting the RESET pin to VID
(8.5V-12.5V). During this mode, formerly protected sectors
can be programmed or erased by selecting the sector
addresses. Once VID is removed from the RESET pin, all the
previously protected sectors are protected again. Figure 1
shows the algorithm, and Figure 22 shows the timing
diagrams, for this feature.
PRELIMINARY (May, 2005, Version 0.1)
15
AMIC Technology, Corp.










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