AM29LV641DH120REI Spansion Inc., AM29LV641DH120REI Datasheet - Page 30

• Manufacturer Part Number: AM29LV641DH120REI
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29LV641DH120REI

• Memory Configuration: 4M X 16
• Ic Interface Type: Parallel
• Access Time: 120ns
• Memory Case Style: TSOP
• No. Of Pins: 48
• Mounting Type: Surface Mount
• Peak Reflow Compatible (260 C): No
• Supply Voltage: 3V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
28
Read
Reset
Enter SecSi Sector Region
Exit SecSi Sector Region
Program
Unlock Bypass
Unlock Bypass Program
Unlock Bypass Reset
Chip Erase
Sector Erase
Erase Suspend
Erase Resume
CFI Query
See
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
Command Sequence” on page 24
(Note
(Note
Manufacturer ID
Device ID
SecSi™ Sector Factory
Protect
Sector Group Protect Verify
(Note
Table 1 on page 10
(Note
Command
Sequence
5)
9)
6)
(Note
(Note
(Note
14)
8)
13)
(Note
12)
(Note
for a description of bus operations.
11)
10)
4
3
2
2
1
1
4
6
4
3
4
4
6
6
1
1
1
section for more information.
Addr
XXX
XXX
XXX
XXX
XXX
555
555
555
555
555
555
555
555
555
555
RA
55
First
Table 10. Command Definitions
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
90
B0
30
98
Am29LV640D/Am29LV641D
“Autoselect
D A T A
Addr
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
XXX
2AA
2AA
PA
Second
Data
PD
55
55
55
55
55
55
55
55
00
55
55
S H E E T
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
88
90
88
90
20
80
80
(SA)X02
Addr
XXX
X01
X00
X02
555
555
PA
Fourth
XX00/
22D7
XX01
Data
0001
PD
AA
AA
60
00
22366C6 January 22, 2007
Addr
X02
2AA
2AA
Fifth
Data
40
55
55
Addr
X02
555
SA
Sixth
(Note
Data
see
10
30
9)