AM29LV641DL120REI Spansion Inc., AM29LV641DL120REI Datasheet - Page 30

• Manufacturer Part Number: AM29LV641DL120REI
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29LV641DL120REI

• Memory Size: 64Mbit
• Memory Configuration: 4M X 16
• Ic Interface Type: Parallel
• Access Time: 120ns
• Memory Case Style: TSOP
• No. Of Pins: 48
• Operating Temperature Range: -40°C To +85°C
• Termination Type: SMD

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.
Notes:
1.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth cycle of the autoselect
4. During unlock cycles, (when lower address bits are 555 or 2AAh
5. No unlock or command cycles required when device is in read
6. The Reset command is required to return to the read mode (or to
7. The fourth cycle of the autoselect command sequence is a read
September 20, 2002
Read (Note 5)
Reset (Note 6)
Enter SecSi Sector Region
Exit SecSi Sector Region
Program
Unlock Bypass
Unlock Bypass Program (Note 10)
Unlock Bypass Reset (Note 11)
Chip Erase
Sector Erase
Erase Suspend (Note 12)
Erase Resume (Note 13)
CFI Query (Note 14)
See Table 1 for description of bus operations.
command sequence, all bus cycles are write cycles.
as shown in table) address bits higher than A11 (except where BA
is required) and data bits higher than DQ7 are don’t cares.
mode.
the erase-suspend-read mode if previously in Erase Suspend)
when the device is in the autoselect mode, or if DQ5 goes high
(while the device is providing status information).
cycle. Data bits DQ15–DQ8 are don’t care. See the Autoselect
Command Sequence section for more information.
Manufacturer ID
Device ID
SecSi
Protect (Note 8)
Sector Group Protect Verify
(Note 9)
Command
Sequence
Sector Factory
3
2
2
1
1
4
4
4
4
3
4
4
6
6
1
1
1
Addr
XXX
XXX
XXX
555
555
555
555
555
555
555
555
555
555
RA
BA
BA
55
First
Table 10. Command Definitions
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
A0
AA
AA
B0
F0
90
30
98
Am29LV640D/Am29LV641D
Addr
XXX
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
PA
Second
Data
PD
55
55
55
55
55
55
55
55
00
55
55
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 A21–A15 uniquely select any sector.
8. If WP# protects the highest address sector (or if WP# is not
9. The data is 00h for an unprotected sector group and 01h for a
10. The Unlock Bypass command is required prior to the Unlock
11. The Unlock Bypass Reset command is required to return to the
12. The system may read and program in non-erasing sectors, or
13. The Erase Resume command is valid only during the Erase
14. Command is valid when device is ready to read array data or when
Addr
555
555
555
555
555
555
555
555
555
555
Third
Bus Cycles (Notes 1–4)
available), the data is 98h for factory locked and 18h for not
factory locked. If WP# protects the lowest address sector, the
data is 88h for factory locked and 08h for not factor locked.
protected sector group.
Bypass Program command.
read mode when the device is in the unlock bypass mode.
enter the autoselect mode, when in the Erase Suspend mode.
The Erase Suspend command is valid only during a sector erase
operation.
Suspend mode.
device is in autoselect mode.
Data
A0
90
90
90
90
88
90
20
80
80
(SA)X02
Addr
XXX
X00
X01
X03
555
555
PA
Fourth
Note 8)
XX00/
XX01
22D7
Data
0001
(see
PD
AA
AA
00
Addr
2AA
2AA
Fifth
Data
55
55
Addr
555
SA
Sixth
Data
10
30
29