S71PL064JB0BFW0B0 Spansion Inc., S71PL064JB0BFW0B0 Datasheet - Page 56

• Manufacturer Part Number: S71PL064JB0BFW0B0
• Manufacturer: Spansion Inc.

Specifications of S71PL064JB0BFW0B0

• Operating Supply Voltage (max): 3.1V
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

57
Temporary Sector
Unprotect Mode
Sector Protect
from RESET#
Remove V
Device failed
Increment
Write reset
PLSCNT
PLSCNT
command
complete
= 25?
No
Yes
Sector Protect
ID
Algorithm
Figure 1. In-System Sector Protection/Sector Unprotection Algorithms
No
No
Write 60h to sector
Protect: Write 40h
to sector address
Sector Protect:
Protect another
RESET# = V
sector address
Sector Protect
from RESET#
Verify Sector
with A7-A0 =
Set up sector
PLSCNT = 1
Cycle = 60h?
address with
with A7-A0 =
Remove V
Wait 100 µs
Data = 01h?
Write reset
Read from
First Write
00000010
00000010
command
Wait 4 µs
00000010
complete
A7-A0 =
address
START
sector?
Yes
No
Yes
ID
ID
Yes
S29PL127J/S29PL064J/S29PL032J for MCP
PLSCNT = 1
Reset
P r e l i m i n a r y
The indicated portion
Protect all sectors:
unprotected sectors
of the sector protect
prior to issuing the
unprotect address
algorithm must be
performed for all
first sector
Sector Unprotect
from RESET#
Device failed
Remove V
Write reset
Increment
command
PLSCNT
PLSCNT
complete
= 1000?
Yes
No
Sector Unprotect
ID
Algorithm
No
No
Write 60h to sector
Set up first sector
Sector Unprotect:
Unprotect: Write
Sector Unprotect
RESET# = V
sector address
40h to sector
from RESET#
Verify Sector
address with
with A7-A0 =
Cycle = 60h?
PLSCNT = 1
address with
Remove V
Wait 1.2 ms
Data = 00h?
Write reset
Read from
First Write
Last sector
01000010
00000010
00000010
command
Wait 4 µs
All sectors
protected?
complete
A7-A0 =
A7-A0 =
address
verified?
START
S29PL127_064_032J_00_A1 May 21, 2004
Yes
Yes
Yes
Yes
ID
ID
No
No
Temporary Sector
Unprotect Mode
next sector
address
Set up