Document Number: 38-05485 Rev. *K

Page 8 of 19

Switching Characteristics

Over the Operating Range

Parameter [16]

Description

45 ns (Industrial /

Automotive-A)

55 ns (Automotive-E)

Unit

Min

Max

Min

Max

Read Cycle

Read cycle time

45–55–

ns

Address to data valid

–

45

–

55

ns

Data hold from address change

10

–

10

–

ns

–

45

–

55

ns

OE LOW to data valid

–

22

–

25

ns

OE LOW to Low Z[17]

5–

5

–ns

OE HIGH to High Z[17, 18]

–18

–

20

ns

10

–

10

–ns

–18

–

20

ns

0

–

0

–ns

–

45

–

55

ns

Write Cycle[19]

Write cycle time

45

–

55

–

ns

35

–

40

–ns

Address setup to write end

35

–

40

–

ns

Address hold from write end

0

–

0

–ns

Address setup to write start

0

–

0

–

ns

WE pulse width

35

–

40

–ns

Data setup to write end

25

–

25

–

ns

Data hold from write end

0

–

0

–

ns

WE LOW to High Z[17, 18]

–18

–

20

ns

WE HIGH to Low Z[17]

10

–

10

–ns

Notes

16. Test conditions for all parameters other than tri-state parameters assume signal transition time of 3 ns (1 V/ns) or less, timing reference levels of 1.5 V, input pulse

a write by going INACTIVE. The data input setup and hold timing must be referenced to the edge of the signal that terminates the write.