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A82DL3244UG-70U Datasheet

  • A82DL3244UG-70U

  • Stacked Multi-Chip Package (MCP) Flash Memory and SRAM, A82D...

  • 932.05KB

  • 60页

  • AMICC

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A82DL32x4T(U) Series
Autoselect Mode
The autoselect mode provides manufacturer and device
identification, and sector protection verification, through
identifier codes output on I/O
7
- I/O
0
. 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
ID
(8.5V to 12.5 V) on address pin A9. Address
pins A6, A1, and A0 must be as shown in Table 5. In
addition, when verifying sector protection, the sector address
must appear on the appropriate highest order address bits.
(see Table 3-4). Table 5 shows the remaining address bits
that are don't care. When all necessary bits have been set as
required, the programming equipment may then read the
corresponding identifier code on I/O
7
- I/O
0
.
To access the autoselect codes in-system, the host system
can issue the autoselect command via the command
register, as shown in Table 12. This method does not require
V
ID
. Refer to the Autoselect Command Sequence section for
more information.
Table 5. A82DL32x4T(U) Autoselect Codes (High Voltage Method)
Description
CE
OE
WE
A20
to
A12
BA
BA
BA
BA
X
SA
A11
to
A10
X
X
X
X
X
X
A9
A8
to
A7
X
X
X
X
X
X
A6
A5
to
A4
X
X
X
X
X
X
I/O
8
to I/O
15
A3
A2
A1
A0
BYTE BYTE
= V
IH
= V
IL
X
X
X
X
X
X
X
22h
22h
22h
X
X
I/O
7
to
I/O
0
37h
55h (T), 56h (U)
50h (T), 53h (U)
5Ch (T), 5Fh (U)
7Fh
01h (protected),
00h (unprotected)
Manufacturer ID
:
AMIC
Device ID: A29DL8224
Device ID: A29DL8234
Device ID: A29DL8244
Continuation ID
Read Sector Status
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
V
ID
V
ID
V
ID
V
ID
V
ID
V
ID
L
L
L
L
L
L
L
X
X
X
X
L
L
X
X
X
X
L
L
L
L
L
H
H
L
H
H
H
H
L
L=Logic Low= V
IL
, H=Logic High=V
IH
, SA=Sector Address, X=Don鈥檛 Care, BA=Bank Address
Note: The autoselect codes may also be accessed in-system via command sequences.
PRELIMINARY
(August, 2005, Version 0.0)
16
AMIC Technology, Corp.

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