AT45DB021D 데이터 시트보기 (PDF) - Atmel Corporation

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AT45DB021D

2-megabit 2.7-volt Minimum DataFlash®

Atmel Corporation 

24.6 Buffer Read (Low Frequency: Opcode D1H)

CS

SCK

SI

SO

0 1 2 3 4 5 6 7 8 9 10 11 12

29 30 31 32 33 34 35 36 37 38 39 40

OPCODE

ADDRESS BITS

BINARY PAGE SIZE = 16 DON'T CARE + BFA7-BFA0

STANDARD DATAFLASH PAGE SIZE =

15 DON'T CARE + BFA8-BFA0

1 1 0 1 0 0 0 1XXXXXX

MSB

MSB

HIGH-IMPEDANCE

AAA

DATA BYTE 1

DDDDDDDDDD

MSB

MSB

24.7 Read Sector Protection Register (Opcode 32H)

CS

SCK

SI

SO

0 1 2 3 4 5 6 7 8 9 10 11 12

29 30 31 32 33 34 35 36 37 38 39 40

OPCODE

DON'T CARE

0 0 1 1 0 0 1 0XXXXXX

MSB

MSB

HIGH-IMPEDANCE

XXX

DATA BYTE 1

DDDDDDDDD

MSB

MSB

24.8 Read Sector Lockdown Register (Opcode 35H)

CS

SCK

SI

SO

0 1 2 3 4 5 6 7 8 9 10 11 12

29 30 31 32 33 34 35 36 37 38 39 40

OPCODE

DON'T CARE

0 0 1 1 0 1 0 1XXXXXX

MSB

MSB

HIGH-IMPEDANCE

XXX

DATA BYTE 1

DDDDDDDDD

MSB

MSB

44 AT45DB021D

3638I–DFLASH–04/09

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