25Q20BWIG データシートの表示（PDF） - Winbond

部品番号

コンポーネント説明

メーカー

25Q20BWIG

1.8V 2M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI

Winbond 

W25Q20BW

8.1.11 Status Register Memory Protection (CMP = 0)

STATUS REGISTER(1)

SEC TB BP2 BP1 BP0

0

XX

0

0

0

0X

0

1

0

0X

1

0

0

1X

0

1

0

1X

1

0

0

XX

1

1

1

X0

0

0

1

0

0

0

1

1

0

0

1

0

1

0

0

1

1

1

0

1

0

X

1

1

0

0

1

1

1

0

1

0

1

1

0

1

1

1

1

1

0

X

1

X1

1

1

W25Q20BW 2M-BIT MEMORY PROTECTED(2)

BLOCK(S)

ADDRESSES

DENSITY

PORTION

NONE

3

2 and 3

NONE

030000h – 03FFFFh

020000h – 03FFFFh

NONE

64KB

128KB

NONE

Upper 1/4

Upper 1/2

0

0 and 1

0 thru 3

000000h – 00FFFFh

000000h – 01FFFFh

000000h – 03FFFFh

64KB

128KB

256KB

Lower 1/4

Lower 1/2

ALL

NONE

3

3

3

3

0

0

0

0

0 thru 3

NONE

03F000h – 03FFFFh

03E000h – 03FFFFh

03C000h – 03FFFFh

038000h – 03FFFFh

000000h – 000FFFh

000000h – 001FFFh

000000h – 003FFFh

000000h – 007FFFh

000000h – 03FFFFh

NONE

4KB

8KB

16KB

32KB

4KB

8KB

16KB

32KB

256KB

NONE

Upper 1/64

Upper 1/32

Upper 1/16

Upper 1/8

Lower 1/64

Lower 1/32

Lower 1/16

Lower 1/8

ALL

Notes:

1. X = don’t care

2. If any Erase or Program command specifies a memory region that contains protected data portion, this

command will be ignored.

- 15 -

Publication Release Date: November 22, 2013

Preliminary - Revision C

Share Link: