AT45DB021D 데이터 시트보기 (PDF) - Atmel Corporation

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AT45DB021D

2-megabit 2.7-volt Minimum DataFlash®

Atmel Corporation 

AT45DB021D

24.9 Read Security Register (Opcode 77H)

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 1 1 1 0 1 1 1XXXXXX

MSB

MSB

HIGH-IMPEDANCE

XXX

DATA BYTE 1

DDDDDDDDD

MSB

MSB

24.10 Status Register Read (Opcode D7H)

CS

SCK

SI

SO

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

OPCODE

11010111

MSB

STATUS REGISTER DATA

STATUS REGISTER DATA

HIGH-IMPEDANCE

DDDDDDDDDDDDDDDDDD

MSB

MSB

MSB

24.11 Manufacturer and Device Read (Opcode 9FH)

CS

SCK

SI

0

678

OPCODE

9FH

14 15 16

22 23 24

30 31 32

38

SO

HIGH-IMPEDANCE

1FH

DEVICE ID BYTE 1 DEVICE ID BYTE 2

00H

Note: Each transition

shown for SI and SO represents one byte (8 bits)

45

3638I–DFLASH–04/09

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