am42dl1612d Meet Spansion Inc., am42dl1612d Datasheet - Page 93

• Manufacturer Part Number: am42dl1612d
• Description: 16 Mbit 2 M ? 8-bit/1 M ? 16-bit Cmos And 2 Mbit 128 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 A19–A11 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
28
Read (Note 6)
Reset (Note 7)
Enter SecSi Sector Region
Exit SecSi Sector Region
Program
Unlock Bypass
Unlock Bypass Program (Note 11)
Unlock Bypass Reset (Note 12)
Chip Erase
Sector Erase
Erase Suspend (Note 13)
Erase Resume (Note 14)
CFI Query (Note 15)
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. Data bits DQ15–DQ8 are don’t care. See the
Autoselect Command Sequence section for more information.
Manufacturer ID
Device ID
SecSi Sector Factory
Protect (Note 9)
Sector Protect Verify
(Note 10)
Command
Sequence
(Note 1)
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
1
1
4
4
4
4
3
4
4
3
2
2
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 14. Command Definitions
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
A0
B0
F0
90
30
98
Addr
XXX
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
PA
Second
Am42DL16x2D
Data
PD
55
55
55
55
55
55
55
55
00
55
55
(BA)555
(BA)555
(BA)555
(BA)555
PD = Data to be programmed at location PA. Data latches on the rising
edge of WE# or CE#f pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A19–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 data is 80h for factory locked and 00h for not factory locked.
10. The data is 00h for an unprotected sector/sector block and 01h for
11. The Unlock Bypass command is required prior to the Unlock
12. The Unlock Bypass Reset command is required to return to
13. The system may read and program in non-erasing sectors, or
14. The Erase Resume command is valid only during the Erase
15. Command is valid when device is ready to read array data or when
T = Top Boot Sector, B = Bottom Boot Sector
Addr
555
555
555
555
555
555
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.
Third
Am29DL161D
Am29DL162D
Am29DL163D
Am29DL164D
Bus Cycles (Notes 2–5)
Device
Table 15. Autoselect Device ID Codes
Data
90
90
A0
20
80
90
90
88
90
80
(BA)X00
(BA)X01
(BA)X03
(SA)X02
Addr
XXX
555
555
PA
Fourth
see Table
81/01
00/01
Data
PD
AA
AA
01
15
00
Autoselect Device ID
2Dh (T), 2Eh (B)
28h (T), 2Bh (B)
36h (T), 39h (B)
33h (T), 35h (B)
Addr
2AA
2AA
Fifth
February 6, 2004
Data
55
55
Addr
555
SA
Sixth
Data
10
30