133

80C286/883

AC Electrical Specifications

82C284 and 82C288 Timing Specifications Are Given For Reference Only, And No Guarantee is

Implied.

82C284 Timing

SYMBOL

PARAMETER

10MHz

12.5MHz

UNIT

TEST CONDITION

MIN

MAX

MIN

MAX

TIMING REQUIREMENTS

11

SRDY/SRDYEN Setup Time

15

-

15

-

ns

12

SRDY/SRDYEN Hold Time

2

-

2

-

ns

13

ARDY/ARDYEN Setup Time

5

-

5

-

ns

(Note 1)

14

ARDY/ARDYEN Hold Time

30

-

25

-

ns

(Note 1)

TIMING RESPONSES

19

PCLK Delay

0

20

0

16

ns

NOTE:

1. These times are given for testing purposes to ensure a predetermined action.

82C288 Timing

SYMBOL

PARAMETER

10MHz

12.5MHz

UNIT

TEST CONDITION

MIN

MAX

MIN

MAX

TIMING REQUIREMENTS

12

CMDLY Setup Time

15

-

15

-

ns

13

CMDLY Hold Time

1

-

1

-

ns

TIMING RESPONSES

16

ALE Active Delay

1

16

1

16

ns

17

ALE Inactive Delay

-

19

-

19

ns

19

DT/R Read Active Delay

-

23

-

23

ns

20

DEN Read Active Delay

0

21

0

21

ns

21

DEN Read Inactive Delay

3

23

3

21

ns

22

DT/R Read Inactive Delay

5

24

5

18

ns

23

DEN Write Active Delay

-

23

-

23

ns

24

DEN Write Inactive Delay

3

23

3

23

ns

29

Command Active Delay from CLK

3

21

3

21

ns

30

Command Inactive Delay from CLK

3

20

3

20

ns