SST89E554 데이터 시트보기 (PDF) - Silicon Storage Technology

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SST89E554

Flash flex 51 MCU

Silicon Storage Technology 

FlashFlex51 MCU

SST89E564 / SST89V564 / SST89E554 / SST89V554

Preliminary Specifications

RST

PSEN#

ALE/PROG#

EA#

P3[3]

P3[7:6], P2[7:6]

P3[5:4], P2[5:0]

TSU

TES

TADS

TPROG

TDH

TBE

1101b

AH

384 ILL F21.1

FIGURE 4-6: BLOCK-ERASE FOR SST89E554/SST89V554

Erases one of the flash memory blocks, if the security lock is not activated on that flash memory block.

RST

PSEN#

ALE/PROG#

EA#

P3[3]

P3[7:6], P2[7:6]

P3[5:4], P2[5:0]

P1

TSU

TES

TADS

TPROG

TDH

TSE

1011b

AH

AL

FIGURE 4-7: SECTOR-ERASE

Erases the addressed sector if the security lock is not activated on that flash memory block.

384 ILL F05.1

©2001 Silicon Storage Technology, Inc.

30

S71181-03-000 9/01 384

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