3596E–DFLASH–02/07

AT45DB081D

15. Command Tables

Table 15-1. Read 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 1 Read (Low Frequency) D1H

Buffer 2 Read (Low Frequency) D3H

Buffer 1 Read D4H

Buffer 2 Read D6H

Table 15-2. Program and Erase Commands

Command Opcode

Buffer 1 Write 84H

Buffer 2 Write 87H

Buffer 1 to Main Memory Page Program with Built-in Erase 83H

Buffer 2 to Main Memory Page Program with Built-in Erase 86H

Buffer 1 to Main Memory Page Program without Built-in Erase 88H

Buffer 2 to Main Memory Page Program without Built-in Erase 89H

Page Erase 81H

Block Erase 50H

Sector Erase 7CH

Chip Erase C7H, 94H, 80H, 9AH

Main Memory Page Program Through Buffer 1 82H

Main Memory Page Program Through Buffer 2 85H

3596E–DFLASH–02/07

AT45DB081D

Note: 1. These legacy commands are not recommended for new designs.

Table 15-3. Protection and Security Commands

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

Table 15-4. Additional Commands

Command Opcode

Main Memory Page to Buffer 1 Transfer 53H

Main Memory Page to Buffer 2 Transfer 55H

Main Memory Page to Buffer 1 Compare 60H

Main Memory Page to Buffer 2 Compare 61H

Auto Page Rewrite through Buffer 1 58H

Auto Page Rewrite through Buffer 2 59H

Deep Power-down B9H

Resume from Deep Power-down ABH

Status Register Read D7H

Manufacturer and Device ID Read 9FH

Table 15-5. Legacy Commands

(1)

Command Opcode

Buffer 1 Read 54H

Buffer 2 Read 56H

Main Memory Page Read 52H

Continuous Array Read 68H

Status Register Read 57H

3596E–DFLASH–02/07

AT45DB081D

Notes: x = Don’t Care

Table 15-6. Detailed Bit-level Addressing Sequence for Binary Page Size (256 Bytes)

Page Size = 256 bytes Address Byte Address Byte Address Byte

Additional

Don’t Care

BytesOpcode Opcode

Reserved

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

03h 0000001 1 xxxxAAAAAAAAAAA A AAAAAAA A

N/A

0Bh 0000101 1 xxxxAAAAAAAAAAA A AAAAAAA A

50h 0101000 0 xxxxAAAAAAAAAxx x xxxxxxx x

N/A

53h 0101001 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

55h 0101010 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

58h 0101100 0 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

59h 0101100 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

60h 0110000 0 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

61h 0110000 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

77h 0111011 1 xxxxxxx x xxxxxxx x xxxxxxx x

N/A

7Ch 0111110 0 xxxxAAAx xxxxxxx x xxxxxxx x

N/A

81h 1000000 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

82h 1000001 0 xxxxAAAAAAAAAAA A AAAAAAA A

N/A

83h 1000001 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

84h 1000010 0 xxxxxxx x xxxxxxx xAAAAAAA A

N/A

85h 1000010 1 xxxxAAAAAAAAAAA A AAAAAAA A

N/A

86h 1000011 0 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

87h 1000011 1 xxxxxxx x xxxxxxx xAAAAAAA A

N/A

88h 1000100 0 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

89h 1000100 1 xxxxAAAAAAAAAAA A x x xxxxx x

N/A

9Fh 1001111 1 N/A N/A N/A

N/A

B9h 1011100 1 N/A N/A N/A

N/A

ABh 1010101 1 N/A N/A N/A

N/A

D1h 1101000 1 xxxxxxx x xxxxxxx xAAAAAAA A

N/A

D2h 1101001 0 xxxxAAAAAAAAAAA A AAAAAAA A

D3h 1101001 1 xxxxxxx x xxxxxxx xAAAAAAA A

N/A

D4h 1101010 0 xxxxxxx x xxxxxxx xAAAAAAA A

D6h 1101011 0 xxxxxxx x xxxxxxx xAAAAAAA A

D7h 1101011 1 N/A N/A N/A

N/A

E8h 1110100 0 xxxxAAAAAAAAAAA A AAAAAAA A

Part #	AT45DB081D-SU-2.5
Description	DATAFLASH, 8M, SERIAL, 2.5V -IND TEMP, GREEN 8 LEAD SOIC
Category	IC
Availability	Out of Stock
Qty	0

AT45DB081D-SU-2.5

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