S29GL064A90TFIR4 Spansion Inc., S29GL064A90TFIR4 Datasheet - Page 46

• Manufacturer Part Number: S29GL064A90TFIR4
• Manufacturer: Spansion Inc.

Specifications of S29GL064A90TFIR4

• Cell Type: NOR
• Density: 64Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 23/22Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 8M/4M
• Supply Current: 50mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

46
Sector Group
Temporary Sector
Group Unprotect
Algorithm
Device failed
Protect
Increment
PLSCNT
PLSCNT
= 25?
Mode
No
Yes
No
No
Sector Group Protect:
sector group address
Verify Sector Group
Write 60h to sector
group address with
Protect: Write 40h
A6–A0 = 0xx0010
A6–A0 = 0xx0010
Protect complete
to sector group
RESET# = V
group address
from RESET#
Sector Group
sector group?
Set up sector
address with
Remove V
PLSCNT = 1
Cycle = 60h?
Wait 150 µs
with A6–A0
Data = 01h?
Write reset
Read from
First Write
= 0xx0010
command
Wait 1 μs
START
another
Protect
Figure 7.2 In-System Sector Group Protect/Unprotect Algorithms
Yes
No
Yes
ID
ID
Yes
PLSCNT = 1
Reset
S29GL-A
must be performed for all
group protect algorithm
groups prior to issuing
groups: The indicated
the first sector group
portion of the sector
D a t a
unprotected sector
Protect all sector
unprotect address
Sector Group
Unprotect
Algorithm
Device failed
Increment
PLSCNT
PLSCNT
= 1000?
S h e e t
Yes
No
No
No
Verify Sector Group
40h to sector group
Unprotect complete
group address with
Write 60h to sector
Set up first sector
A6–A0 = 1xx0010
A6–A0 = 1xx0010
A6–A0 = 1xx0010
Unprotect: Write
RESET# = V
group address
Sector Group
from RESET#
Sector Group
address with
sector group
address with
PLSCNT = 1
Cycle = 60h?
Remove V
Data = 00h?
Wait 15 ms
Write reset
Read from
First Write
Last sector
protected?
Unprotect:
command
Wait 1 μs
All sector
verified?
START
groups
group
S29GL-A_00_A12 May 21, 2008
Yes
Yes
Yes
Yes
ID
ID
No
No
next sector group
Temporary Sector
Group Unprotect
address
Set up
Mode