參數(shù)資料
型號： Am29LV640DU101RFEN
廠商： Advanced Micro Devices, Inc.
英文描述： 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
中文描述： 64兆位（4個M x 16位），3.0伏的CMOS只均勻部門閃光控制記憶與VersatileI
文件頁數(shù)： 23/57頁
文件大?。?/td> 1467K
代理商： AM29LV640DU101RFEN
22
Am29LV640D/Am29LV641D
September 20, 2002
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, 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 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 (x16)
Data
Description
10h
11h
12h
0051h
0052h
0059h
Query Unique ASCII string
“
QRY
”
13h
14h
0002h
0000h
Primary OEM Command Set
15h
16h
0040h
0000h
Address for Primary Extended Table
17h
18h
0000h
0000h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
0000h
0000h
Address for Alternate OEM Extended Table (00h = none exists)
相關(guān)PDF資料
PDF描述
Am29LV640DH121RFEN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
AM29LV641DH121RFEN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
Am29LV640DL121RFEN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
AM29LV641DL121RFEN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileI Control
Am29LV640DU121RFEN Cabinet Rack Front Panel; External Height:8.75"; External Width:19"; Enclosure Color:Gray; Enclosure Material:Aluminum; Weight:2lb; Color:Metallic gray; Thickness:0.12" RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29LV640DU-90NI 制造商:Advanced Micro Devices 功能描述:
AM29LV640DU90REI 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 64MBIT 4MX16 90NS 48TSOP - Trays
AM29LV640DU-90RWHIT 制造商:Advanced Micro Devices 功能描述:63-BALL FINE-PITCH BALL GRID ARRAY (FBGA) 0.80 MM PITCH, 11 X 12 MM PACKAGE (FBE063)
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