W29C020CP70B 查看數據表（PDF） - Winbond

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W29C020CP70B

256K X 8 CMOS FLASH MEMORY

Winbond 

W29C020C

Timing Waveforms, continued

Reset Software Data Protection Timing Diagram

Address A15-0

DQ7-0

CE

OE

WE

Six-byte sequence for resetting

software data protection mode

TWC

5555

2AAA

5555

5555

2AAA

5555

AA

55

80

AA

55

20

TWP

TBLC

TWPH

SW0

SW1

SW2

SW3

SW4

SW5

Internal programming starts

Software Chip Erase Timing Diagram

Six-byte code for 5V-only software

chip erase

TWC

Address A15-0

5555

2AAA

5555

5555

2AAA

5555

DQ7-0

CE

AA

55

80

AA

55

10

OE

TWP

TBLC

WE

TWPH

SW0

SW1

SW2

SW3

SW4

SW5

Internal erasing starts

- 17 -

Publication Release Date: December 2000

Revision A3

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