AT45DB021D_13 datasheet(24/48 Pages) ETC2

24 / 48 page

3638M–DFLASH–5/2013

AT45DB021D

13.

Command Tables

Table 13-1.

Read Commands

Table 13-2.

Program and Erase Commands

Table 13-3.

Protection and Security Commands

Command

Opcode

Main Memory Page Read

D2H

Continuous Array Read (Legacy Command)

E8H

Continuous Array Read (Low Frequency)

03H

Continuous Array Read (High Frequency)

0BH

Buffer Read (Low Frequency)

D1H

Buffer Read

D4H

Command

Opcode

Buffer Write

84H

Buffer to Main Memory Page Program with Built-in Erase

83H

Buffer to Main Memory Page Program without Built-in Erase

88H

Page Erase

81H

Block Erase

50H

Sector Erase

7CH

Chip Erase

7CH, 94H, 80H, 9AH

Main Memory Page Program through Buffer

82H

Command

Opcode

Enable Sector Protection

3DH + 2AH + 7FH + A9H

Disable Sector Protection

3DH + 2AH + 7FH + 9AH

Erase Sector Protection Register

3DH + 2AH + 7FH + CFH

Program Sector Protection Register

3DH + 2AH + 7FH + FCH

Read Sector Protection Register

32H

Sector Lockdown

3DH + 2AH + 7FH + 30H

Read Sector Lockdown Register

35H

Program Security Register

9BH + 00H + 00H + 00H

Read Security Register

77H

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