LH28F160S5T-L80 데이터 시트보기 (PDF) - Sharp Electronics

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LH28F160S5T-L80

16 M-bit (2 MB x 8/1 MB x 16) Smart 5 Flash Memories (Fast Programming)

Sharp Electronics 

LH28F160S5-L/S5H-L

Start

Write 60H

Write D0H

Read

Status Register

0

SR.7 =

1

Full Status

Check if Desired

Clear Block

Lock-Bits Complete

BUS

OPERATION

Write

Write

COMMAND

Clear Block

Lock-Bits

Setup

Clear Block

Lock-Bits

Confirm

COMMENTS

Data = 60H

Addr = X

Data = D0H

Addr = X

Read

Status Register Data

Standby

Check SR.7

1 = WSM Ready

0 = WSM Busy

Write FFH after the last clear block lock-bits operation to

place device in read array mode.

FULL STATUS CHECK PROCEDURE

Read Status Register

Data (See Above)

1

SR.3 =

0

VPP Range Error

1

SR.1 =

0

Device Protect Error

1

SR.4, 5 =

0

Command Sequence

Error

BUS

OPERATION COMMAND

COMMENTS

Standby

Check SR.3

1 = VPP Error Detect

Standby

Check SR.1

1 = Device Protect Detect

WP# = VIL

Standby

Check SR.4, 5

Both 1 = Command Sequence Error

Standby

Check SR.5

1 = Clear Block Lock-Bits Error

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.

SR.5 =

1

Clear Block Lock-Bits

Error

0

Clear Block Lock-Bits

Successful

Fig. 11 Clear Block Lock-Bits Flowchart

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