LHF16KA7 View Datasheet(PDF) - Sharp Electronics

Part Name

Description

MFG CO.

LHF16KA7

Flash Memory 16M (2MB × 8/1MB × 16)

Sharp Electronics 

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Check if Desired

FULL STATUS CHECK PROCEDURE

LHFlGKA7

Command

Comments

Set Block

Data-01 H.

write

Lock-Bit Confirm

Addr-Block Address

I

Read

I

1

Status Register Data

I

Standby

Check SR.7

1-WSM Ready

OaWSM Busy

Repeat for subsequent block lock-bit set operations.

Full status check can be done after each Mock lock-bit set operation

or after a sequence of block lock-bit set operations.

Write FFH after the last block lock-bit set operation to place device in

read array mode.

Standby

standby

Command

Comments

Check SR.3

lnVpp Error Detect

CheckSR.1

l-Device Protect Detect

wP#=v,L

Standby

Standby

Check SR.4

l-Set Block Lock-Sit Error

I

I

SR.S,SR.4,SR.3 and SR.l am only deared by the Clear Status

Register command in cases where multiple block lock-bits are set before

full statlls Ls checked.

If error is detected. clear the Status Register before attempting

retry or other error recovery.

Figure 12. Set Block Lock-Bit Flowchart

Rev. 1.9

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