W39V040FAT View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W39V040FAT

512K × 8 CMOS FLASH MEMORY WITH FWH INTERFACE

Winbond 

Embedded #Data Polling Algorithm

W39V040FA

Start

VA = Byte address for programming

Read Byte

(DQ0 - DQ7)

Address = VA

= Any of the sector addresses within

the sector being erased during sector

erase operation

= Any of the page addresses within

the page being erased during page

erase operation

No

DQ7 = Data

= Any of the device addresses being erased

during chip erase operation

?

Yes

Pass

Embedded Toggle Bit Algorithm

Start

Read Byte

(DQ0 - DQ7)

Address = Don't Care

Yes

DQ6 = Toggle

?

No

Pass

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