LH28F800BGE-TL85 Sharp Electronics, LH28F800BGE-TL85 Datasheet - Page 16

• Manufacturer Part Number: LH28F800BGE-TL85
• Manufacturer: Sharp Electronics

Specifications of LH28F800BGE-TL85

• Cell Type: NOR
• Density: 8Mb
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 19b
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP-I
• Program/erase Volt (typ): 2.7/3.3/5/12V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7/4.5V
• Operating Supply Voltage (max): 3.6/5.5V
• Word Size: 16b
• Number Of Words: 512K
• Supply Current: 65mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
Check if Desired
Status Register
Block Address
Block Address
Block Erase
Block Erase
Write D0H,
Successful
Write 20H,
Full Status
Complete
SR.4, 5 =
SR.7 =
SR.3 =
SR.1 =
SR.5 =
Read
Start
0
0
0
0
1
0
1
1
1
1
Block Erase
Command Sequence
No
Device Protect Error
Suspend
V
PP
Fig. 3 Automated Block Erase Flowchart
Block Erase
Range Error
Error
Error
Suspend Block
Erase Loop
Yes
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OPERATION
OPERATION COMMAND
Write
Write
Read
Standby
Standby
Standby
Standby
Standby
Repeat for subsequent block erasures.
Full status check can be done after each block erase or after
a sequence of block erasures.
Write FFH after the last block erase 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 in cases where multiple blocks
are erased before full status is checked.
If error is detected, clear the status register before attempting
retry or other error recovery.
BUS
BUS
LH28F800BG-L/BGH-L (FOR TSOP, CSP)
Erase Setup
COMMAND
Confirm
Erase
Data = 20H
Addr = Within Block to be Erased
Data = D0H
Addr = Within Block to be Erased
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 = Block Erase Error
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
PP
Error Detect
COMMENTS
COMMENTS