LH28F008SCR-L85 Sharp Electronics, LH28F008SCR-L85 Datasheet - Page 21

• Manufacturer Part Number: LH28F008SCR-L85
• Manufacturer: Sharp Electronics

Specifications of LH28F008SCR-L85

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 85ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 20b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP
• Program/erase Volt (typ): 3.3/5/12V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Word Size: 8b
• Number Of Words: 1M
• Supply Current: 50mA
• Mounting: Surface Mount
• Pin Count: 40
• Lead Free Status / Rohs Status: Not Compliant

FULL STATUS CHECK PROCEDURE
Byte Write Successful
Read Status Register
Data and Address
Data(See Above)
Check if Desired
Status Register
Write 40H,
Full Status
Byte Write
Write Byte
Complete
Address
SR.7=
SR.3=
SR.1=
SR.4=
Read
Start
1
0
0
0
0
1
1
1
Device Protect Error
Byte Write
V
No
Byte Write Error
Suspend
PP
Range Error
Figure 6. Automated Byte Write Flowchart
Yes
Suspend Byte
Write Loop
LHF08CTF
Repeat for subsequent byte writes.
SR full status check can be done after each byte write, or after a sequence of
If error is detected, clear the Status Register before attempting
Write FFH after the last byte write operation to place device in
SR.4,SR.3 and SR.1 are only cleared by the Clear Status Register
byte writes.
read array mode.
command in cases where multiple locations are written before
full status is checked.
retry or other error recovery.
Operation
Operation
Standby
Standby
Standby
Standby
Read
Write
Write
Bus
Bus
Setup Byte Write
Command
Command
Byte Write
Data=40H
Addr=Location to Be Written
Data=Data to Be Written
Addr=Location to Be Written
Status Register Data
1=WSM Ready
0=WSM Busy
Check SR.3
Check SR.1
RP#=V
Check SR.7
1=V
1=Device Protect Detect
Only required for systems
implementing lock-bit configuration
Check SR.4
1=Data Write Error
PP
IH
Error Detect
,Block Lock-Bit is Set
Comments
Comments
Rev. 1.3
18