 2010 Microchip Technology Inc.

DS22064D-page 3

25LC1024

TABLE 1-2:

AC CHARACTERISTICS

AC CHARACTERISTICS

Industrial (I):

Automotive (E):

Param.

No.

Sym.

Characteristic

Min.

Max.

Units

Conditions

Clock frequency

—

—

20

10

MHz

MHz

4.5V

2.5V

CS setup time

25

50

—

—

ns

ns

4.5V

2.5V

CS hold time

50

100

—

—

ns

ns

4.5V

2.5V

CS disable time

50

—

ns

—

5

Tsu

Data setup time

5

10

—

—

ns

ns

4.5V

2.5V

Data hold time

10

20

—

—

ns

ns

4.5V

2.5V

CLK rise time

—

20

ns

(Note 1)

CLK fall time

—

20

ns

(Note 1)

Clock high time

25

50

—

—

ns

ns

4.5V

2.5V

10

Clock low time

25

50

—

—

ns

ns

4.5V

2.5V

11

Clock delay time

50

—

ns

—

12

Clock enable time

50

—

ns

—

13

Output valid from clock low

—

—

25

50

ns

ns

4.5V

2.5V

14

Output hold time

0

—

ns

(Note 1)

15

Output disable time

—

—

25

50

ns

ns

4.5V

2.5V

16

HOLD setup time

10

20

—

—

ns

ns

4.5V

2.5V

17

HOLD hold time

10

20

—

—

ns

ns

4.5V

2.5V

18

HOLD low to output

High-Z

15

30

—

—

ns

ns

4.5V

2.5V

(Note 1)

19

HOLD high to output valid

15

30

—

—

ns

ns

4.5V

2.5V

20

CS High to Standby mode

—

100

s—

21

CS High to Deep power-

down

—100

s—

22

Chip erase cycle time

—

10

ms

—

23

Sector erase cycle time

—

10

ms

—

24

Internal write cycle time

—

6

ms

Byte or Page mode and Page

Erase

Note 1: This parameter is periodically sampled and not 100% tested.

2: This parameter is not tested but established by characterization and qualification. For endurance

estimates in a specific application, please consult the Total Endurance™ Model which can be obtained

from Microchip’s web site at www.microchip.com.