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参数资料
| 型号： | AM29LV065DU90RFIN |
| 厂商： | Advanced Micro Devices, Inc. |
| 英文描述： | 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control |
| 中文描述： | 64兆位（8米× 8位）的CMOS 3.0伏特，只有统一部门闪光控制记忆与VersatileIOTM |
| 文件页数： | 21/52页 |
| 文件大小： | 1184K |
| 代理商： | AM29LV065DU90RFIN |
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20
Am29LV065D
January 10, 2002
writes are ignored until V
CC
is greater than V
LKO
. The
system must provide 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 the read mode 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, any time the
device is ready to read array data (addresses are don
’
t
care). The system can read CFI information at the ad-
dresses given in Tables
6
–
9
. 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
6
–
9
. The
system must write the reset command to return the de-
vice 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/prod-
ucts/nvd/overview/cfi.html. Alternatively, contact an
AMD representative for copies of these documents.
Table 6.
CFI Query Identification String
Addresses (x8)
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)
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相关代理商/技术参数 |
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|---|---|
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