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A29DL323 bảng dữ liệu(PDF) 13 Page - AMIC Technology

tên linh kiện A29DL323
Giải thích chi tiết về linh kiện  32 Megabit (4M x 8-Bit/2M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory
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nhà sản xuất  AMICC [AMIC Technology]
Trang chủ  http://www.amictechnology.com
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A29DL32x Series
PRELIMINARY
(May, 2005, Version 0.0)
12
AMIC Technology, Corp.
Autoselect Mode
The autoselect mode provides manufacturer and device
identification, and sector protection verification, through
identifier codes output on I/O7 - I/O0. 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 VID (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/O7 - I/O0.
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
VID. Refer to the Autoselect Command Sequence section for
more information.
Table 5. A29DL32x Autoselect Codes (High Voltage Method)
I/O8 to I/O15
Description
CE
OE
WE
A20
to
A12
A11
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
A2
A1
A0
BYTE
= VIH
BYTE
= VIL
I/O7
to
I/O0
Manufacturer ID:
AMIC
L
L
H
BA
X
VID
X
L
X
L
L
L
L
X
X
37h
Device ID: A29DL322
L
L
H
BA
X
VID
X
L
X
X
X
L
H
22h
X
55h (T), 56h (U)
Device ID: A29DL323
L
L
H
BA
X
VID
X
L
X
X
X
L
H
22h
X
50h (T), 53h (U)
Device ID: A29DL324
L
L
H
BA
X
VID
X
L
X
X
X
L
H
22h
X
5Ch (T), 5Fh (U)
Continuation ID
L
L
H
X
X
VID
X
L
X
X
X
H
H
X
X
7Fh
Read Sector Status
L
L
H
SA
X
VID
X
L
X
L
L
H
L
X
X
01h (protected),
00h (unprotected)
L=Logic Low= VIL, H=Logic High=VIH, SA=Sector Address, X=Don’t Care, BA=Bank Address
Note: The autoselect codes may also be accessed in-system via command sequences.



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