am41dl3208gt85it Meet Spansion Inc., am41dl3208gt85it Datasheet - Page 33

• Manufacturer Part Number: am41dl3208gt85it
• Description: 32 Mbit 4 M ? 8-bit/2 M ? 16-bit Cmos 3.0 Volt-only, Simultaneous Operation Flash Memory And 8 Mbit 1 M ? 8-bit/512 K ? 16-bit Static Ram Preliminary
• Manufacturer: Meet Spansion Inc.

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#f 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. Data bits DQ15–DQ8 are don’t care in command sequences,
5. Unless otherwise noted, address bits A20–A12 are don’t cares.
6. No unlock or command cycles required when bank is in read
7. The Reset command is required to return to reading array data
8. The fourth cycle of the autoselect command sequence is a read
32
Read (Note 6)
Reset (Note 7)
Enter SecSi Sector Region
Exit SecSi Sector Region
Program
Unlock Bypass
Unlock Bypass Program
(Note 12)
Unlock Bypass Reset (Note
13)
Chip Erase
Sector Erase
Erase Suspend (Note 14)
Erase Resume (Note 15)
CFI Query (Note 16)
See Table 1 for description of bus operations.
command sequence, all bus cycles are write cycles.
except for RD and PD.
mode.
(or to the erase-suspend-read mode if previously in Erase
Suspend) when a bank is in the autoselect mode, or if DQ5 goes
high (while the bank is providing status information).
cycle. The system must provide the bank address to obtain the
manufacturer ID, device ID, or SecSi Sector factory protect
information. See the Autoselect Command Sequence section for
more information.
Manufacturer ID
Device ID (Note 9)
SecSi Sector Factory
Protect (Note 10)
Sector Protect Verify
(Note 11)
Command
Sequence
(Note 1)
1
1
4
4
4
4
3
4
4
3
2
2
6
6
1
1
1
Addr
Table 15. Command Definitions (Flash Word Mode)
XXX
XXX
555
555
555
555
555
555
555
555
555
555
RA
BA
BA
BA
55
First
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
B0
90
30
98
Addr
XXX
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
PA
P R E L I M I N A R Y
Second
Data
PD
55
55
55
55
55
55
55
55
55
00
55
Am41DL3208G
(BA)555
(BA)555
(BA)555
(BA)555
Addr
555
555
555
555
555
555
Third
PD = Data to be programmed at location PA. Data latches on the rising
edge of WE# or CE#f pulse, whichever happens first.
SADD = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A20–A12 uniquely select any sector.
BA = Address of the bank that is being switched to autoselect mode, is
in bypass mode, or is being erased.
9. The device ID must be read across three cycles. The device ID is
10. The data is 80h for factory locked and 00h for not factory locked.
11. The data is 00h for an unprotected sector/sector block and 01h
12. The Unlock Bypass command is required prior to the Unlock
13. The Unlock Bypass Reset command is required to return to
14. The system may read and program in non-erasing sectors, or
15. The Erase Resume command is valid only during the Erase
16. Command is valid when device is ready to read array data or when
Bus Cycles (Notes 2–5)
Data
A0
00h for top boot and 01h for bottom boot.
for a protected sector/sector block.
Bypass Program command.
reading array data when the bank 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, and requires the bank address.
Suspend mode, and requires the bank address.
device is in autoselect mode.
90
90
90
90
88
90
20
80
80
(BA)X00
(BA)X01
(BA)X03
(SADD)
Addr
XXX
X02
555
555
PA
Fourth
0082/0002
0000/0001
Data
0001
PD
AA
AA
7E
00
Addr
(BA)
2AA
2AA
0E
Fifth
Data
February 13, 2002
0A
55
55
SADD
Addr
(BA)
555
0F
Sixth
0000/
Data
0001
10
30