7

AT25DF512C

DS-25DF512C–030E–2/2017

7.

Read Commands

7.1

Read Array

The Read Array command can be used to sequentially read a continuous stream of data from the device by simply

providing the clock signal once the initial starting address is specified. The device incorporates an internal address

counter that automatically increments every clock cycle.

Two opcodes (0Bh and 03h) can be used for the Read Array command. The use of each opcode depends on the

maximum clock frequency that will be used to read data from the device. The 0Bh opcode can be used at any clock

Chip Erase

60h

0110 0000

Up to 104 MHz

0

0

0

C7h

1100 0111

Up to 104 MHz

0

0

0

Chip Erase (Legacy Command)

62h

0110 0010

Up to 104 MHz

0

0

0

Byte/Page Program (1 to 256 Bytes)

02h

0000 0010

Up to 104 MHz

3

0

1+

Protection Commands

Write Enable

06h

0000 0110

Up to 104 MHz

0

0

0

Write Disable

04h

0000 0100

Up to 104 MHz

0

0

0

Security Commands

Program OTP Security Register

9Bh

1001 1011

Up to 104 MHz

3

0

1+

Read OTP Security Register

77h

0111 0111

Up to 104 MHz

3

2

1+

Status Register Commands

Read Status Register

05h

0000 0101

Up to 104 MHz

0

0

1+

Write Status Register Byte 1

01h

0000 0001

Up to 104 MHz

0

0

1

Write Status Register Byte 2

31h

0011 0001

Up to 104 MHz

0

0

1

Miscellaneous Commands

Reset

F0h

1111 0000

Up to 104 MHz

0

0

1(D0h)

Read Manufacturer and Device ID

9Fh

1001 1111

Up to 104 MHz

0

0

1 to 4

Read ID (Legacy Command)

15h

0001 0101

Up to 104 MHz

0

0

2

Deep Power-Down

B9h

1011 1001

Up to 104 MHz

0

0

0

Resume from Deep Power-Down

ABh

1010 1011

Up to 104 MHz

0

0

0

Ultra Deep Power-Down

79h

0111 1001

Up to 104 MHz

0

0

0

1.

Varies by voltage range. See Table 13.4 “AC Characteristics - Maximum Clock Frequencies”.

Table 6-1.

Command Listing

Command

Opcode

Clock

Frequency

Address

Bytes

Dummy

Bytes

Data

Bytes