Rainbow Electronics AT25DQ321 User Manual

Page 8

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8

AT25DQ321 [DATASHEET]

8718D–DFLASH–12/2012

Table 6-1.

Command Listing

Command

Opcode

Clock

Frequency

Address

Bytes

Dummy

Bytes

Data

Bytes

Read Commands

Read Array

1Bh

0001 1011

Up to 100MHz

3

2

1+

0Bh

0000 1011

Up to 85MHz

3

1

1+

03h

0000 0011

Up to 50MHz

3

0

1+

Dual-Output Read Array

3Bh

0011 1011

Up to 85MHz

3

1

1+

Quad-Output Read Array

6Bh

0110 1011

Up to 66MHz

3

1

1+

Program and Erase Commands

Block Erase (4KB)

20h

0010 0000

Up to 100MHz

3

0

0

Block Erase (32KB)

52h

0101 0010

Up to 100MHz

3

0

0

Block Erase (64KB)

D8h

1101 1000

Up to 100MHz

3

0

0

Chip Erase

60h

0110 0000

Up to 100MHz

0

0

0

C7h

1100 0111

Up to 100MHz

0

0

0

Byte/Page Program (1 to 256 bytes)

02h

0000 0010

Up to 100MHz

3

0

1+

Dual-Input Byte/Page Program (1 to 256 bytes)

A2h

1010 0010

Up to 100MHz

3

0

1+

Quad-Input Byte/Page Program (1 to 256 bytes)

32h

0011 0010

Up to 100MHz

3

0

1+

Program/Erase Suspend

B0h

1011 0000

Up to 100MHz

0

0

0

Program/Erase Resume

D0h

1101 0000

Up to 100MHz

0

0

0

Protection Commands

Write Enable

06h

0000 0110

Up to 100MHz

0

0

0

Write Disable

04h

0000 0100

Up to 100MHz

0

0

0

Protect Sector

36h

0011 0110

Up to 100MHz

3

0

0

Unprotect Sector

39h

0011 1001

Up to 100MHz

3

0

0

Global Protect/Unprotect

Use Write Status Register Byte 1 Command

Read Sector Protection Registers

3Ch

0011 1100

Up to 100MHz

3

0

1+

Security Commands

Sector Lockdown

33h

0011 0011

Up to 100MHz

3

0

1

Freeze Sector Lockdown State

34h

0011 0100

Up to 100MHz

3

0

1

Read Sector Lockdown Registers

35h

0011 0101

Up to 100MHz

3

0

1+

Program OTP Security Register

9Bh

1001 1011

Up to 100MHz

3

0

1+

Read OTP Security Register

77h

0111 0111

Up to 100MHz

3

2

1+

Status and Configuration Register Commands

Read Status Register

05h

0000 0101

Up to 100MHz

0

0

1+

Write Status Register Byte 1

01h

0000 0001

Up to 100MHz

0

0

1

Write Status Register Byte 2

31h

0011 0001

Up to 100MHz

0

0

1

Read Configuration Register

3Fh

0011 1111

Up to 100MHz

0

0

1+

Write Configuration Register

3Eh

0011 1110

Up to 100MHz

0

0

1

Miscellaneous Commands

Reset

F0h

1111 0000

Up to 100MHz

0

0

1

Read Manufacturer and Device ID

9Fh

1001 1111

Up to 85MHz

0

0

1 to 4

Deep Power-Down

B9h

1011 1001

Up to 100MHz

0

0

0

Resume from Deep Power-Down

ABh

1010 1011

Up to 100MHz

0

0

0

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