LH28F008SC-L120 View Datasheet(PDF) - Sharp Electronics

Part Name

Description

Manufacturer

LH28F008SC-L120

Flash Memory 8M (1MB × 8)

Sharp Electronics 

sharp

LHF08CH1

18

Start

Write 40H,

Address

Write Byte

Data and Address

Read

Status Register

0

SR.7=

1

Full Status

Check if Desired

No

Suspend

Byte Write

Suspend Byte

Write Loop

Yes

Byte Write

Complete

FULL STATUS CHECK PROCEDURE

Read Status Register

Data(See Above)

1

SR.3=

0

VPP Range Error

1

SR.1=

Device Protect Error

0

1

SR.4=

0

Byte Write Successful

Byte Write Error

Bus

Operation

Write

Write

Command

Comments

Setup Byte Write

Byte Write

Data=40H

Addr=Location to Be Written

Data=Data to Be Written

Addr=Location to Be Written

Read

Status Register Data

Standby

Check SR.7

1=WSM Ready

0=WSM Busy

Repeat for subsequent byte writes.

SR full status check can be done after each byte write, or after a sequence of

byte writes.

Write FFH after the last byte write operation to place device in

read array mode.

Bus

Operation

Command

Comments

Standby

Standby

Check SR.3

1=VPP Error Detect

Check SR.1

1=Device Protect Detect

RP#=VIH,Block Lock-Bit is Set

Only required for systems

implementing lock-bit configuration

Standby

Check SR.4

1=Data Write Error

SR.4,SR.3 and SR.1 are only cleared by the Clear Status Register

command in cases where multiple locations are written before

full status is checked.

If error is detected, clear the Status Register before attempting

retry or other error recovery.

Figure 6. Automated Byte Write Flowchart

Rev. 1.3

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