AM29DL323GB90EI AMD (ADVANCED MICRO DEVICES), AM29DL323GB90EI Datasheet - Page 18
AM29DL323GB90EI
Manufacturer Part Number
AM29DL323GB90EI
Description
Flash Memory IC
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheets
1.AM29DL323GB90EI.pdf
(58 pages)
2.AM29DL323GB90EI.pdf
(53 pages)
3.AM29DL323GB90EI.pdf
(58 pages)
Specifications of AM29DL323GB90EI
Memory Configuration
4M X 8 / 2M X 16 Bit
Supply Voltage Max
3.6V
Access Time, Tacc
90nS
Mounting Type
Surface Mount
Supply Voltage
3V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AM29DL323GB90EI
Manufacturer:
TDK
Quantity:
14 000
18
Sector Protect
Temporary Sector
Unprotect Mode
Algorithm
Device failed
Increment
PLSCNT
PLSCNT
= 25?
No
Yes
No
No
Write 60h to sector
Protect: Write 40h
to sector address
A6 = 0, A1 = 1,
Sector Protect:
sector address
Protect another
RESET# = V
A1 = 1, A0 = 0
A1 = 1, A0 = 0
Sector Protect
from RESET#
Set up sector
Verify Sector
Cycle = 60h?
PLSCNT = 1
address with
Remove V
with A6 = 0,
with A6 = 0,
Wait 150 µs
Data = 01h?
Write reset
Read from
First Write
command
Wait 1 µs
complete
address
START
sector?
A0 = 0
Yes
Yes
No
ID
ID
A D V A N C E
Figure 2. In-System Sector Protection/
Yes
Sector Unprotection Algorithms
PLSCNT = 1
Reset
Am29DL32xG
I N F O R M A T I O N
The indicated portion
unprotected sectors
Protect all sectors:
of the sector protect
prior to issuing the
unprotect address
algorithm must be
performed for all
Sector Unprotect
first sector
Algorithm
Device failed
Increment
PLSCNT
PLSCNT
= 1000?
Yes
No
No
No
Set up first sector
Sector Unprotect:
Unprotect: Write
Sector Unprotect
Write 60h to any
A6 = 1, A1 = 1,
A6 = 1, A1 = 1,
RESET# = V
sector address
A1 = 1, A0 = 0
from RESET#
Verify Sector
40h to sector
address with
PLSCNT = 1
Cycle = 60h?
address with
Remove V
with A6 = 1,
Data = 00h?
Wait 15 ms
Read from
Write reset
First Write
Last sector
protected?
command
Wait 1 µs
All sectors
complete
verified?
address
START
A0 = 0
A0 = 0
Yes
Yes
Yes
Yes
ID
ID
No
No
March 26, 2004
Temporary Sector
Unprotect Mode
next sector
address
Set up