DS-AT25DF021A-042 Rev. L

Page 13

8/7/23

© 2023 Renesas Electronics

AT25DF021A Datasheet

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

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 “AC Characteristics - Maximum Clock Frequencies (-40°C to +125°C)” on page 45

2. Three address bytes are required for the first operation to designate the address to start 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 2. Command Listing (Continued)

Command

Opcode

Clock

Frequency

Address

Bytes

Dummy

Bytes

Data

Bytes