參數(shù)資料
型號(hào): AM29LV033C-120WDF
廠商: Advanced Micro Devices, Inc.
英文描述: 32 Megabit (4 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory
中文描述: 32兆位(4個(gè)M × 8位)的CMOS 3.0伏特,只有統(tǒng)一部門閃存
文件頁(yè)數(shù): 25/49頁(yè)
文件大?。?/td> 693K
代理商: AM29LV033C-120WDF
22268B5 September 12, 2006
Am29LV033C
23
D A T A S H E E T
Table 9.
Am29LV033C 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. Ad-
dresses are latched on the falling edge of the WE# or CE#
pulse.
PD = Data to be programmed at location PA. Data is latched on
the rising edge of WE# or CE# pulse.
SA = Address of the sector to be erased or verified. Address bits
A21–A16 uniquely select any sector.
Notes:
1. See
Table 1, on page 11
for descriptions of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus cycles
are write operations.
4. Address bits are don’t care for unlock and command cycles,
except when PA or SA is required.
5. No unlock or command cycles required when device is in read
mode.
6. The Reset command is required to return to the read mode
when the device is in the autoselect mode or if DQ5 goes high.
7. The fourth cycle of the autoselect command sequence is a
read cycle.
8. In the third and fourth cycles of the command sequence, set
A21 to 0.
9. In the third cycle of the command sequence, address bit A21
must be set to 0 if verifying sectors 0–31, or to 1 if verifying
sectors 32–64. The data in the fourth cycle is 00h for an
unprotected sector/sector block and 01h for a protected
sector/sector block.
10. The Unlock Bypass command is required prior to the Unlock
Bypass Program command.
11. The Unlock Bypass Reset command is required to return to
reading array data when the device is in the Unlock Bypass
mode.
12. The system may read and program functions 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.
13. The Erase Resume command is valid only during the Erase
Suspend mode.
14. Command is valid when device is ready to read array data or
when device is in autoselect mode.
Command Sequence
(Note 1)
1
Bus Cycles (Notes 2–4)
First
Second
Third
Fourth
Fifth
Sixth
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read (Note 5)
RA
RD
Reset (Note 6)
1
XXX
F0
A
(
Manufacturer ID (Note 8)
4
XXX
AA
XXX
55
0XXXXX
90
0XXX00
01
Device ID (Note 8)
4
XXX
AA
XXX
55
0XXXXX
90
0XXX01
A3
Sector Protect Verify
(Note 9)
4
XXX
AA
XXX
55
0XXXXX
or
2XXXXX
90
SA
X02
00
XXX
XXX
01
Byte Program
4
XXX
AA
XXX
55
XXX
A0
PA
PD
Unlock Bypass
3
XXX
AA
XXX
55
XXX
20
Unlock Bypass Program
(Note 10)
2
XXX
A0
PA
PD
Unlock Bypass Reset
(Note 11)
2
XXX
90
XXX
00
Chip Erase
6
XXX
AA
XXX
55
XXX
80
XXX
AA
XXX
55
XXX
10
Sector Erase
6
XXX
AA
XXX
55
XXX
80
XXX
AA
XXX
55
SA
30
Erase Suspend (Note 12)
1
XXX
B0
Erase Resume (Note 13)
1
XXX
30
CFI Query (Note 14)
1
XXX
98
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AM29LV033C-120WDK 32 Megabit (4 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory
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