TH50VSF2580AASB Datasheet, PDF(49/50 Page) Toshiba Semiconductor – SRAM AND FLASH MEMORY MIXED MULTI-CHIP PACKAGE

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

TH50VSF2580AASB Datasheet, PDF (49/50 Pages) Toshiba Semiconductor – SRAM AND FLASH MEMORY MIXED MULTI-CHIP PACKAGE

◁

Block Protect

TH50VSF2580/2581AASB

Start

RESET = VID

Wait for 4 Âµs

PLSCNT = 1

Block Protect

Command First Bus Write Cycle

(XXXH/60H)

Set up Address

Addr. = BPA

Block Protect

Command Second Bus Write Cycle

(BPA/60H)

Wait for 100 Âµs

Block Protect

Command Third Bus Write Cycle

(XXXH/40H)

Verify Block Protect

No

Data = 01H?

Yes

Yes

Protect Another Block?

No

Remove VID from RESET

Reset Command

Block Protect

Complete

PLSCNT = PLSCNT + 1

No

PLSCNT = 25?

Yes

Remove VID from RESET

Reset Command

Device Failed

BPA: Block Address and ID Read Address (A6, A1, A0)

ID Read Address = (0, 1, 0)

2001-10-26 49/50

▷