LH28F800BJHE-PTTL90 Sharp Electronics, LH28F800BJHE-PTTL90 Datasheet - Page 28

• Manufacturer Part Number: LH28F800BJHE-PTTL90
• Manufacturer: Sharp Electronics

Specifications of LH28F800BJHE-PTTL90

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 20/19Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 1M/512K
• Supply Current: 30mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

sharp
FULL STATUS CHECK PROCEDURE
Clear Block Lock-Bits
Clear Block Lock-Bits
Read Status Register
Data(See Above)
Check if Desired
Status Register
Read Status
Write 60H
Write D0H
Full Status
Successful
Write 70H
Complete
Register
SR.4,5=
SR.1=
SR.7=
SR.7=
SR.3=
SR.5=
Start
Read
1
1
0
0
0
0
0
0
1
1
1
1
Clear Block Lock-Bits
Device Protect Error
Command Sequence
V
CCW
Range Error
Error
Error
Figure 12. Clear Block Lock-Bits Flowchart
LHF80J03
Write FFH after the Clear Block Lock-Bits operation to place device in read array mode.
SR.5, SR.4, SR.3 and SR.1 are only cleared by the Clear Status Register command.
If error is detected, clear the Status Register before attempting retry or other error recovery.
Operation
Operation
Standby
Standby
Standby
Standby
Standby
Standby
Write
Write
Write
Read
Read
Bus
Bus
Lock-Bits Confirm
Lock-Bits Setup
Clear Block
Clear Block
Read Status
Command
Command
Register
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
Data=60H
Addr=X
Data=D0H
Addr=X
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
Check SR.3
1=V
Check SR.1
1=Device Protect Detect
Check SR.4,5
Both 1=Command Sequence Error
Check SR.5
1=Clear Block Lock-Bits Error
Data=70H
Addr=X
Permanent Lock-Bit is Set
CCW
Error Detect
Comments
Comments
Rev. 1.27
25