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| 型號： | AM29LV033C-90FE |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | PROM |
| 英文描述： | LM3622 Lithium-Ion Battery Charger Controller; Package: SOIC NARROW; No of Pins: 8; Qty per Container: 2500; Container: Reel |
| 中文描述： | 4M X 8 FLASH 3V PROM, 90 ns, PDSO40 |
| 封裝： | REVERSE, MO-142CD, TSOP-40 |
| 文件頁數(shù)： | 14/48頁 |
| 文件大?。?/td> | 1023K |
| 代理商： | AM29LV033C-90FE |
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Am29LV033C
13
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equip-
ment to automatically match a device to be pro-
grammed 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
(11.5 V to 12.5 V) on address pin
A9. Address pins A6, A1, and A0 must be as shown in
Table 3. In addition, when verifying sector protection,
the sector address must appear on the appropriate
highest order address bits (see Table ). Table 3 shows
the remaining address bits that are don’t care. When
all necessary bits have been set as required, the pro-
gramming equipment may then read the correspond-
ing identifier code on DQ7-DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 9. This method
does not require V
ID
. See “Writing specific address
and data commands or sequences into the command
register initiates device operations. Table 9 defines the
valid register command sequences. Writing incorrect
address and data values or writing them in the im-
proper sequence resets the device to reading array
data.” for details on using the autoselect mode.
Table 3.
Am29LV033C Autoselect Codes (High Voltage Method)
L = Logic Low = V
IL
, H = Logic High = V
IH
, SA = Sector Address, X = Don’t care.
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 Table 4).
The hardware sector protection feature disables both
program and erase operations in any sector. The hard-
ware sector unprotection feature re-enables both pro-
gram and erase operations in previously protected
sectors. Sector protection/unprotection can be imple-
mented via two methods.
The primary method requires V
ID
on the RESET# pin
only, and can be implemented either in-system or via
programming equipment. Figure 2 shows the algo-
rithms and Figure 22 shows the timing diagram. This
method uses standard microprocessor bus cycle tim-
ing. For sector unprotect, all unprotected sectors must
first be protected prior to the first sector unprotect
write cycle.
The alternate method intended only for programming
equipment requires V
ID
on address pin A9 and OE#.
This method is compatible with programmer routines
written for earlier 3.0 volt-only AMD flash devices.
Publication number 22269 contains further details;
contact an AMD representative to request a copy.
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at its factory prior to shipping the device
through AMD’s ExpressFlash Service. Contact an
AMD representative for details.
It is possible to determine whether a sector is pro-
tected or unprotected. See “Autoselect Mode” for de-
tails.
Description
CE#
OE#
WE#
A21
to
A16
A15
to
A10
A9
A8
to
A7
A6
A5
to
A2
A1
A0
DQ7
to
DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
01h
Device ID: Am29LV033C
L
L
H
X
X
V
ID
X
L
X
L
H
A3h
Sector Protection Verification
L
L
H
SA
X
V
ID
X
L
X
H
L
01h
(protected)
00h
(unprotected)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM29LV033C-90FI | LM3622 Lithium-Ion Battery Charger Controller; Package: SOIC NARROW; No of Pins: 8 |
| AM29LV033C-70WDI | 32 Megabit (4 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory |
| AM29LV033C-90WDE | 32 Megabit (4 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory |
| AM29LV033MU | LM3622 Lithium-Ion Battery Charger Controller; Package: SOIC NARROW; No of Pins: 8; Qty per Container: 2500; Container: Reel |
| AM29LV033MUU101WCI | 32 Megabit (4 M x 8-Bit) MirrorBit 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29LV033C-90WDI-T | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Advanced Micro Devices 功能描述: 制造商:AMD 功能描述: |
| AM29LV040B-120EC\\T | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8 120NS 32TSOP - Tape and Reel |
| AM29LV040B-120EC\T | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8 120NS 32TSOP - Tape and Reel |
| AM29LV040B-120EI | 制造商:Spansion 功能描述:Flash Mem Parallel 3V/3.3V 4M-Bit 512K x 8 120ns 32-Pin TSOP |
| AM29LV040B-120JC | 制造商:Advanced Micro Devices 功能描述: |
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