LH28F320S3NS-L11 Sharp Microelectronics, LH28F320S3NS-L11 Datasheet - Page 26

• Manufacturer Part Number: LH28F320S3NS-L11
• Description: IC FLASH 32MBIT 110NS 56SSOP
• Manufacturer: Sharp Microelectronics

Specifications of LH28F320S3NS-L11

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 32M (4Mx8, 2Mx16)
• Speed: 110ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 56-SSOP
• Lead Free Status / RoHS Status: Contains lead / Request inventory verification
• Other names: 425-1844; LHF32K01

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FULL STATUS CHECK PROCEDURE
Read Status Register
Data(See Above)
Check if Desired
Full Chip Erase
Full Chip Erase
Read Status
Read Status
Successful
Write 70H
Write D0H
Write 30H
Full Status
Complete
Register
Register
SR.4,5=
SR.7=
SR.7=
SR.5=
SR.3=
Start
1
0
0
0
1
0
0
1
1
1
Command Sequence
Full Chip Erase Error
V
PP
Range Error
Error
Figure 6. Automated Full Chip Erase Flowchart
LHF32K01
Full status check can be done after each full chip erase.
SR.5,SR.4,SR.3 and SR.1 are only cleared by the Clear Status
If error is detected, clear the Status Register before attempting
Write FFH after the last operation to place device in read array mode.
Register Command in cases where multiple blocks are erased
before full status is checked.
retry or other error recovery.
Operation
Operation
Standby
Standby
Standby
Standby
Standby
Read
Write
Read
Write
Write
Bus
Bus
Full Chip Erase
Full Chip Erase
Read Status
Command
Command
Register
Confirm
Setup
Data=30H
Data=D0H
Data=70H
Addr=X
Addr=X
Addr=X
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
Check SR.3
1=V
Check SR.4,5
Both 1=Command Sequence Error
Check SR.5
1=Full Chip Erase Error
Status Register Data
1=WSM Ready
Check SR.7
0=WSM Busy
PP
Error Detect
Comments
Comments
Rev. 1.55
23