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參數(shù)資料
| 型號： | Am29LV641DU121RZEN |
| 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)： | 25/57頁 |
| 文件大?。?/td> | 1467K |
| 代理商： | AM29LV641DU121RZEN |
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24
Am29LV640D/Am29LV641D
September 20, 2002
Table 9.
Primary Vendor-Specific Extended Query
COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations. Table 10 defines the valid register command
sequences. Writing
incorrect
address and data val-
ues
or writing them in the
improper sequence
resets
the device to reading array data.
All addresses are latched on the falling edge of WE#
or CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
first. Refer to the AC Characteristics section for timing
diagrams.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command,
the device enters the erase-suspend-read mode, after
which the system can read data from any
non-erase-suspended sector. After completing a pro-
gramming operation in the Erase Suspend mode, the
system may once again read array data with the same
exception. See the Erase Suspend/Erase Resume
Commands section for more information.
Addresses (x16)
Data
Description
40h
41h
42h
0050h
0052h
0049h
Query-unique ASCII string
“
PRI
”
43h
0031h
Major version number, ASCII
44h
0033h
Minor version number, ASCII
45h
0000h
Address Sensitive Unlock (Bits 1-0)
00b = Required, 01b = Not Required
Silicon Revision Number (Bits 7-2) 000000b = 0.23 μm Process Technology
46h
0002h
Erase Suspend
00 = Not Supported, 01 = To Read Only, 02 = To Read & Write
47h
0004h
Sector Protect
00 = Not Supported, X = Number of sectors in per group
48h
0001h
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
49h
0004h
Sector Protect/Unprotect scheme
04 = 29LV800A mode
4Ah
0000h
Simultaneous Operation
00 = Not Supported, XX = Number of Sectors in Bank
4Bh
0000h
Burst Mode Type
00 = Not Supported, 01 = Supported
4Ch
0000h
Page Mode Type
00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page
4Dh
00B5h
ACC (Acceleration) Supply Minimum
Bits 7
–
4 = Hex Value in Volts, Bits 0
–
3 = BCD Value in 100 mV
4Eh
00C5h
ACC (Acceleration) Supply Maximum
Bits 7
–
4 = Hex Value in Volts, Bits 0
–
3 = BCD Value in 100 mV
4Fh
000Xh
Top/Bottom Boot Sector Flag
00h = Uniform Sector, No WP# Control
04h = Uniform Sector, WP# Protects Bottom Sector
05h = Uniform Sector, WP# Protects Top Sector
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