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| 型號(hào)： | AM29LV033C-90EE |
| 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: 95; Container: Rail |
| 中文描述： | 4M X 8 FLASH 3V PROM, 90 ns, PDSO40 |
| 封裝： | MO-142CD, TSOP-40 |
| 文件頁數(shù)： | 17/48頁 |
| 文件大小： | 1023K |
| 代理商： | AM29LV033C-90EE |
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16
Am29LV033C
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes (refer to Table 9 for com-
mand definitions). In addition, the following hardware
data protection measures prevent accidental erasure
or programming, which might otherwise be caused by
spurious system level signals during V
CC
power-up
and power-down transitions, or from system noise.
Low V
CC
Write Inhibit
When V
CC
is less than V
LKO
, the device does not ac-
cept any write cycles. This protects data during V
CC
power-up and power-down. The command register
and all internal program/erase circuits are disabled,
and the device resets. Subsequent writes are ignored
until V
CC
is greater than V
LKO
. The system must pro-
vide the proper signals to the control pins to prevent
unintentional writes when V
CC
is greater than V
LKO
.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE#
or WE# do not initiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# =
V
IL
, CE# = V
IH
or WE# = V
IH
. To initiate a write cycle,
CE# and WE# must be a logical zero while OE# is a
logical one.
Power-Up Write Inhibit
If WE# = CE# = V
IL
and OE# = V
IH
during power up,
the device does not accept commands on the rising
edge of WE#. The internal state machine is automati-
cally reset to reading array data on power-up.
COMMON FLASH MEMORY INTERFACE (CFI)
The Common Flash Interface (CFI) specification out-
lines device and host system software interrogation
handshake, which allows specific vendor-specified
software algorithms to be used for entire families of
devices. Software support can then be device-inde-
pendent, JEDEC ID-independent, and forward- and
backward-compatible for the specified flash device
families. Flash vendors can standardize their existing
interfaces for long-term compatibility.
This device enters the CFI Query mode when the sys-
tem writes the CFI Query command, 98h, to address
55h, any time the device is ready to read array data.
The system can read CFI information at the addresses
given in Tables 5–8. To terminate reading CFI data,
the system must write the reset command.
The system can also write the CFI query command
when the device is in the autoselect mode. The device
enters the CFI query mode, and the system can read
CFI data at the addresses given in Tables 5–8. The
system must write the reset command to return the
device to the autoselect mode.
For further information, please refer to the CFI Specifi-
cation and CFI Publication 100, available via the World
Wide Web at http://www.amd.com/products/nvd/over-
view/cfi.html. Alternatively, contact an AMD represen-
tative for copies of these documents.
Table 5.
CFI Query Identification String
Addresses
Data
Description
10h
11h
12h
51h
52h
59h
Query Unique ASCII string “QRY”
13h
14h
02h
00h
Primary OEM Command Set
15h
16h
40h
00h
Address for Primary Extended Table
17h
18h
00h
00h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
00h
00h
Address for Alternate OEM Extended Table (00h = none exists)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM29LV033C-90FE | LM3622 Lithium-Ion Battery Charger Controller; Package: SOIC NARROW; No of Pins: 8; Qty per Container: 2500; Container: Reel |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29LV033C-90EF | 制造商:Advanced Micro Devices 功能描述:4M X 8 FLASH 3V PROM, 90 ns, PDSO40 |
| 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 |
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