參數(shù)資料
型號(hào)： AM29LV040B-120JF
廠(chǎng)商： Advanced Micro Devices, Inc.
英文描述： 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
中文描述： 4兆位（512畝× 8位），3.0伏的CMOS只，均勻部門(mén)32引腳閃存
文件頁(yè)數(shù)： 17/37頁(yè)
文件大小： 471K
代理商： AM29LV040B-120JF
October11,2006 21354E4
Am29LV040B
17
D A T A S H E E T
Command Definitions
Table 4.
Am29LV040B Command Definitions
Legend:
X = Don’t care
RA = Address of the memory location to be read.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed.
Addresses latch on the falling edge of the WE# or CE# pulse,
whichever happens later.
PD = Data to be programmed at location PA. Data latches on the
rising edge of WE# or CE# pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A18–A13 uniquely select any sector.
Notes:
1. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all command
bus cycles are write operations.
4. Address bits A18–A11 are don’t cares for unlock and
command cycles.
5. No unlock or command cycles required when reading array
data.
6. The Reset command is required to return to reading array
data when device is in the autoselect mode, or if DQ5 goes
high (while the device is providing status data).
7. The fourth cycle of the autoselect command sequence is a
read cycle.
8. The data is 00h for an unprotected sector and 01h for a
protected sector. See “Autoselect Command Sequence” for
more information.
9. The Unlock Bypass command is required prior to the Unlock
Bypass Program command.
10. The Unlock Bypass Reset command is required to return to
reading array data when the device is in the unlock bypass
mode.
11. The system may read and program in non-erasing sectors, or
enter the autoselect mode, when in the Erase Suspend
mode. The Erase Suspend command is valid only during a
sector erase operation.
12. The Erase Resume command is valid only during the Erase
Suspend mode.
Command
Sequence
(Note 1)
C
Bus Cycles (Notes 2-4)
Third
Addr
Data
First
Second
Addr
Fourth
Addr
Fifth
Sixth
Addr
RA
XXX
555
555
Data
RD
F0
AA
AA
Data
Data
Addr Data
Addr
Data
Read (Note 5)
Reset (Note 6)
1
1
4
4
Auto-
select
(Note 7)
Manufacturer ID
Device ID
2AA
2AA
55
55
555
555
90
90
X00
X01
01
4F
00
01
PD
Sector Protect Verify
(Note 8)
4
555
AA
2AA
55
555
90
(SA)
X02
Program
Unlock Bypass
Unlock Bypass Program (Note 9)
Unlock Bypass Reset (Note 10)
Chip Erase
Sector Erase
Erase Suspend (Note 11)
Erase Resume (Note 12)
4
3
2
2
6
6
1
1
555
555
XXX
XXX
555
555
XXX
XXX
AA
AA
A0
90
AA
AA
B0
30
2AA
2AA
PA
XXX
2AA
2AA
55
55
PD
00
55
55
555
555
A0
20
PA
555
555
80
80
555
555
AA
AA
2AA
2AA
55
55
555
SA
10
30
相關(guān)PDF資料
PDF描述
AM29LV040B-120JK 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
AM29LV040B-60RED 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
AM29LV040B-60REE 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
AM29LV040B-60REF 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
AM29LV040B-60REK 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
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