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參數(shù)資料
| 型號： | AM42DL1614DT30IT |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Am29DL16xD 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory and 4 Mbit (256 K x 16-Bit) Static RAM |
| 中文描述： | Am29DL16xD 16兆位（2米× 8位/ 1個M x 16位），3.0伏的CMOS只，同時作業(yè)閃存和4兆位（256畝× 16位），靜態(tài)存儲器 |
| 文件頁數(shù)： | 12/61頁 |
| 文件大?。?/td> | 477K |
| 代理商： | AM42DL1614DT30IT |
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January 9, 2002
Am42DL16x4D
11
P R E L I M I N A R Y
Table 1.
Device Bus Operations
—
Flash Word Mode, CIOf = V
IH
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, V
ID
= 11.5–12.5
V, V
HH
= 9.0 ± 0.5 V, X = Don’t Care, SADD = Flash Sector
Address, A
IN
= Address In, D
IN
= Data In, D
OUT
= Data Out
Notes:
1. Other operations except for those indicated in this column are inhibited.
2. Do not apply CE#f = V
IL
, CE1#s = V
IL
and CE2s = V
IH
at the same time.
3. Don’t care or open LB#s or UB#s.
4. If WP#/ACC = V
IL
, the boot sectors will be protected. If WP#/ACC = V
IH
the boot sectors protection will be removed.
If WP#/ACC = V
ACC
(9V), the program time will be reduced by 40%.
5. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the “The autoselect
mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on
DQ7–DQ0. The autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command
Sequence section for more information.Sector/Sector Block Protection and Unprotection” section.
6. If WP#/ACC = V
IL
, the two outermost boot sectors remain protected. If WP#/ACC = V
IH
, the two outermost boot sector protection
depends on whether they were last protected or unprotected using the method described in “The autoselect mode provides
manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7–DQ0. The
autoselect codes can be accessed in-system through the command register. Refer to the Autoselect Command Sequence section
for more information.Sector/Sector Block Protection and Unprotection”. If WP#/ACC = V
HH,
all sectors will be unprotected.
Operation
(Notes 1, 2)
CE#f
CE1#s
CE2s OE# WE#
Addr.
LB#s UB#s RESET#
WP#/ACC
(Note 4)
DQ7
–
DQ0
DQ15
–
DQ8
Read from Flash
L
H
X
L
H
A
IN
X
X
H
L/H
D
OUT
D
OUT
X
L
Write to Flash
L
H
X
H
L
A
IN
X
X
H
(Note 4)
D
IN
D
IN
X
L
Standby
V
CC
±
0.3 V
H
X
X
X
X
X
X
V
CC
±
0.3 V
H
High-Z
High-Z
X
L
Output Disable
L
L
H
H
H
X
L
X
H
L/H
High-Z
High-Z
H
H
X
X
L
Flash Hardware
Reset
X
H
X
X
X
X
X
X
L
L/H
High-Z
High-Z
X
L
Sector Protect
(Note 5)
L
H
X
H
L
SADD,
A6 = L,
A1 = H,
A0 = L
X
X
V
ID
L/H
D
IN
X
X
L
Sector Unprotect
(Note 5)
L
H
X
H
L
SADD,
A6 = H,
A1 = H,
A0 = L
X
X
V
ID
(Note 6)
D
IN
X
X
L
Temporary Sector
Unprotect
X
H
X
X
X
X
X
X
V
ID
(Note 6)
D
IN
High-Z
X
L
Read from SRAM
H
L
H
L
H
A
IN
L
L
H
X
D
OUT
High-Z
D
OUT
D
OUT
High-Z
H
L
L
H
D
OUT
D
IN
High-Z
Write to SRAM
H
L
H
X
L
A
IN
L
L
H
X
D
IN
D
IN
H
L
L
H
D
IN
High-Z
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