 2003 Microchip Technology Inc.

DS21808B-page 3

25XX080A/B

TABLE 1-2:

AC CHARACTERISTICS

AC CHARACTERISTICS

Industrial (I):

T

V

Automotive (E): T

V

Param.

No.

Sym.

Characteristic

Min.

Max.

Units

Test Conditions

1F

CLK

Clock Frequency

—

—

—

10

5

3

MHz

MHz

MHz

4.5V

2.5V

1.8V

2T

CSS

CS Setup Time

50

100

150

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

3T

CSH

CS Hold Time

100

200

250

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

4T

CSD

CS Disable Time

50

—

ns

—

5

Tsu

Data Setup Time

10

20

30

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

6T

HD

Data Hold Time

20

40

50

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

7T

R

CLK Rise Time

—

500

ns

(Note 1)

8T

F

CLK Fall Time

—

500

ns

(Note 1)

9T

HI

Clock High Time

50

100

150

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

10

T

LO

Clock Low Time

50

100

150

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

11

T

CLD

Clock Delay Time

50

—

ns

—

12

T

CLE

Clock Enable Time

50

—

ns

—

13

T

V

Output Valid from Clock

Low

—

—

—

50

100

160

ns

ns

ns

4.5V

2.5V

1.8V

14

T

HO

Output Hold Time

0

—

ns

(Note 1)

15

T

DIS

Output Disable Time

—

—

—

40

80

160

ns

ns

ns

4.5V

2.5V

1.8V

16

T

HS

HOLD Setup Time

20

40

80

—

—

—

ns

ns

ns

4.5V

2.5V

1.8V

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

2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific

application, please consult the Total Endurance™ Model which can be obtained from our web site:

www.microchip.com.

3: T

is complete.