LH28F320S3NS-L11 Sharp Microelectronics, LH28F320S3NS-L11 Datasheet - Page 32

• 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
Set Block Lock-Bit
Data(See Above)
Set Block Lock-Bit
Check if Desired
Status Register
Block Address
Block Address
Successful
Write 60H,
Full Status
Write 01H,
Complete
SR.4,5=
SR.7=
SR.3=
SR.1=
SR.4=
Start
Read
1
0
0
0
0
0
1
1
1
1
Set Block Lock-Bit Error
Command Sequence
Device Protect Error
V
PP
Range Error
Error
Figure 12. Set Block Lock-Bit Flowchart
LHF32K01
Repeat for subsequent block lock-bit set operations.
Full status check can be done after each block lock-bit set operation
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 block lock-bit set operation to place device in
or after a sequence of block lock-bit set operations.
read array mode.
Register command in cases where multiple block lock-bits are set before
full status is checked.
retry or other error recovery.
Operation
Operation
Standby
Standby
Standby
Standby
Standby
Read
Write
Write
Bus
Bus
Lock-Bit Confirm
Lock-Bit Setup
Command
Set Block
Command
Set Block
Data=60H
Data=01H,
Addr=Block Address
Addr=Block Address
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
Check SR.4,5
Both 1=Command
Check SR.3
1=V
Check SR.1
1=Device Protect Detect
Check SR.4
1=Set Block Lock-Bit Error
Sequence Error
WP#=V
PP
Error Detect
IL
Comments
Comments
Rev. 1.55
29