am41pds3224d Meet Spansion Inc., am41pds3224d Datasheet - Page 28

• Manufacturer Part Number: am41pds3224d
• Description: 32 Mbit 2 M ? 16-bit Cmos 1.8 Volt-only, Simultaneous Operation Page Mode Flash Memory And 4 Mbit 512 K ? 8-bit/256 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# pulse, whichever happens
later.
Notes:
1.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth and fifth cycle of the
4. Data bits DQ15–DQ8 are don’t care in command sequences,
5. Unless otherwise noted, address bits A20–A12 are don’t cares in
6. No unlock or command cycles required when device is in read
7. The Reset command is required to return to the read mode (or to
8. The fourth cycle of the autoselect command sequence is a read
May 13, 2002
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)
See Table 1 for description of bus operations.
autoselect command sequence, all bus cycles are write cycles.
except for RD and PD.
unlock sequence.
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. The system must provide the bank address to obtain the
manufacturer ID, device ID, or SecSi Sector factory protect
information. Data bits DQ15–DQ8 are don’t care. See the
Autoselect Command Sequence section for more information.
Manufacturer ID
Device ID (Note 9)
SecSi Sector Factory
Protect (Note 10)
Sector Group Protect Verify
(Note 11)
Command
Sequence
(Note 1)
1
1
4
4
4
4
3
4
4
3
2
2
6
6
1
1
Table 10. Am29PDS322D Command Definitions
Addr
XXX
XXX
XXX
555
555
555
555
555
555
555
555
555
555
RA
BA
BA
First
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
90
B0
30
P R E L I M I N A R Y
Addr
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
XXX
2AA
2AA
PA
Second
Am41PDS3224D
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.
SGA = Address of the sector group to be verified (in autoselect mode)
or erased. Address bits A20–A12 uniquely select any sector.
9. The device ID must be read across the fourth, fifth and sixth
10. The data is 80h for factory locked and 00h for not factory locked.
11. The data is 00h for an unprotected sector group and 01h for a
12. The Unlock Bypass command is required prior to the Unlock
13. The Unlock Bypass Reset command is required to return to the
14. The system may read and program in non-erasing sectors, or
15. The Erase Resume command is valid only during the Erase
Addr
555
555
555
555
555
555
555
555
555
555
Third
Bus Cycles (Notes 2–5)
cycles. The sixth cycle specifies 2201h for top boot or 2200h for
bottom boot.
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
Suspend mode, and requires the bank address.
Data
A0
90
90
90
90
88
90
20
80
80
(SGA)
Addr
XXX
X00
X01
X03
X02
555
555
PA
Fourth
XX00/
80/00
XX01
0001
227E
Data
PD
AA
AA
00
Addr
X0E
2AA
2AA
Fifth
2206
Data
55
55
Addr
X0F
555
SA
Sixth
2201/
Data
2200
10
30
27