W39V040FAQ datasheet(31/36 Pages) WINBOND

31 / 36 page

W39V040FA

Publication Release Date: December 19, 2002

- 31 -

Revision A2

Timing Waveforms for FWH Interface Mode, continued

Page Erase Timing Diagram

CLK

#RESET

FWH4

1st Start

Load Address "5555" in 7 Clocks

1 Clock

Start next

command

1 Clock

2 Clocks

1 Clock

X101b

0101b

Load Data "AA"

in 2 Clocks

1010b

Write the 1st command to the device in FWH mode.

Address

Sync

TAR

Data

1111b

Tri-State

0000b

1110b

IDSEL

0000b

M Size

XXXXb

2 Clocks

TAR

1111b

Tri-State

#RESET

CLK

FWH4

FWH[3:0]

#RESET

CLK

2nd Start

Load Address "2AAA" in 7 Clocks

1 Clock

Start next

command

1 Clock

2 Clocks

1 Clock

X010b

1010b

Load Data "55"

in 2 Clocks

0101b

Write the 2nd command to the device in FWH mode.

Address

Sync

TAR

Data

1111b

Tri-State

0000b

1110b

IDSEL

0000b

Size

XXXXb

2 Clocks

TAR

1111b

Tri-State

FWH4

FWH[3:0]

#RESET

CLK

3rd Start

Load Address "5555" in 7 Clocks

1 Clocks

Start next

command

1 Clocks

2 Clocks

1 Clocks

X101b

0101b

Load Data "80"

in 2 Clocks

1000b

0000b

Write the 3rd command to the device in FWH mode.

Address

Sync

TAR

Data

1111b

Tri-State

0000b

1110b

IDSEL

0000b

M Size

XXXXb

2 Clocks

TAR

1111b

Tri-State

FWH4

4th Start

Load Address "5555" in 7 Clocks

1 Clock

Start next

command

1 Clock

2 Clocks

1 Clock

X101b

0101b

Load Data "AA"

in 2 Clocks

1010b

Write the 4th command to the device in FWH mode.

Address

Sync

TAR

Data

1111b

Tri-State

0000b

#RESET

CLK

0000b

1110b

IDSEL

0000b

M Size

XXXXb

2 Clocks

TAR

1111b

Tri-State

5th Start

Load Address "2AAA" in 7 Clocks

1 Clock

Start next

command

1 Clock

X010b

1010b

Load Data "55"

in 2 Clocks

0101b

Write the 5th command to the device in FWH mode.

Address

Sync

2 Clocks

TAR

Data

1111b

Tri-State

0000b

FWH4

FWH[3:0]

0000b

1110b

IDSEL

0000b

M Size

XXXXb

2 Clocks

TAR

1111b

Tri-State

#RESET

CLK

6th Start

Load Page Address in 7 Clocks

Sync

Internal

erase start

1 Clock

A[15:12]

Load Din

in 2 Clocks

0101b

Write the 6th command(target page to be erased) to the device in FWH mode.

0000b

TAR

2 Clocks

1111b

Tri-State

0000b

Data

Address

FWH4

FWH[3:0]

XXXXb

IDSEL

Internal

erase start

0000b

M Size

XXXXb

XA[18:16]b

XXXXb

TAR

2 Clocks

1111b Tri-State

1 Clock

0000b

1110b

FWH[3:0]

W39V040FAQ Datasheet(PDF) 31 Page - Winbond

W39V040FAQ Datasheet(HTML) 31 Page - Winbond

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