6

3588C–DFLASH–04/06

AT26F004

Notes:

1. Three address bytes are only required for the first operation to designate the address at which to start the programming.

Afterwards, the internal address counter automatically increments, so subsequent Sequential Program Mode operations

only require clocking in of the opcode and the data byte until the Sequential Program Mode has been exited.

Table 6-1.

Command Listing

Command

Opcode

Address

Bytes

Dummy

Bytes

Data Bytes

Read Commands

Read Array

0Bh

0000 1011

3

1

1+

Read Array (Low Frequency)

03h

0000 0011

3

0

1+

Program and Erase Commands

Block Erase (4 KBytes)

20h

0010 0000

3

0

0

Block Erase (32 KBytes)

52h

0101 0010

3

0

0

Block Erase (64 KBytes)

D8h

1101 1000

3

0

0

Chip Erase

60h

0110 0000

0

0

0

C7h

1100 0111

0

0

0

Byte Program

02h

0000 0010

3

0

1

Sequential Byte Program Mode

AFh

1010 1111

3, 0(1)

01

Protection Commands

Write Enable

06h

0000 0110

0

0

0

Write Disable

04h

0000 0100

0

0

0

Protect Sector

36h

0011 0110

3

0

0

Unprotect Sector

39h

0011 1001

3

0

0

Read Sector Protection Registers

3Ch

0011 1100

3

0

1+

Status Register Commands

Read Status Register

05h

0000 0101

0

0

1+

Write Status Register

01h

0000 0001

0

0

1

Miscellaneous Commands

Read Manufacturer and Device ID

9Fh

1001 1111

0

0

1 to 4

Deep Power-down

B9h

1011 1001

0

0

0

Resume from Deep Power-down

ABh

1010 1011

0

0

0