AM29LV320DT90EI AMD (ADVANCED MICRO DEVICES), AM29LV320DT90EI Datasheet - Page 29

• Manufacturer Part Number: AM29LV320DT90EI
• Description: Flash Memory IC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM29LV320DT90EI

• Memory Configuration: 4M X 8 / 2M X 16 Bit
• Package/case: 48-TSOP
• Supply Voltage Max: 3.6V
• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Access Time, Tacc: 90nS
• Mounting Type: Surface Mount
• 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. See
2.
3.
4.
5.
6.
7.
8.
9.
November 15, 2004
Read (Note 6)
Reset (Note 7)
Enter
Region
Exit
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)
All values are in hexadecimal.
Except for the read cycle and the fourth cycle of the autoselect
command sequence, all bus cycles are write cycles.
Data bits DQ15–DQ8 are don’t care in command sequences,
except for RD and PD.
Unless otherwise noted, address bits A20–A11 are don’t cares.
No unlock or command cycles required when device is in read
mode.
The Reset command is required to return to the read mode (or
to the erase-suspend-read mode if previously in Erase Suspend)
when a device is in the autoselect mode, or if DQ5 goes high
(while the device is providing status information).
The fourth cycle of the autoselect command sequence is a read
cycle. Data bits DQ15–DQ8 are don’t care. See the Autoselect
Command Sequence section for more information.
The data is 99h for factory locked and 19h for not factory
locked.
SecSi Sector
Manufacturer ID
Device ID
SecSi Sector
Factory Protect
(Note 9)
Sector Protect
Verify (Note 10)
SecSi™ Sector
Table 1
Command
Sequence
(Note 1)
for description of bus operations.
Region
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Table 14. Am29LV320D Command Definitions
1
1
4
4
4
4
3
4
4
3
2
2
6
6
1
1
1
Addr Data Addr Data
XXX
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
XXX
XXX
AAA
AAA
XXX
XXX
555
555
555
555
555
555
555
555
555
555
RA
AA
55
First
RD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
90
B0
30
98
XXX
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
PA
Second
Am29LV320D
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 A20–A12 uniquely select any sector.
10. The data is 00h for an unprotected sector and 01h for a
11. The Unlock Bypass command is required prior to the Unlock
12. The Unlock Bypass Reset command is required to return to the
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
Addr
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
555
555
555
555
555
555
555
555
555
555
Bus Cycles (Notes 2–5)
protected sector.
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.
when device is in autoselect mode.
Third
Data
A0
90
90
90
90
88
90
20
80
80
(SA)X0
(SA)X0
Addr
XXX
AAA
AAA
X00
X01
X02
X03
X06
555
555
PA
2
4
Fourth
Table
99/19
00/01
Data
(see
PD
AA
AA
01
00
6)
Addr Data Addr Data
2AA
2AA
555
555
Fifth
55
55
AAA
555
SA
Sixth
10
30
29