11

V54C316162V Rev. 2.9 September 2001

MOSEL VITELIC

V54C316162V

24

Self Refresh Exit Time

6

Read Cycle

25

Data Out Hold Time

2.5

–

2.5

–

2.5

–

2.5

–

ns

27

CAS Latency = 3

CAS Latency = 2

–

–

5

7

–

–

5.3

7

–

–

5.5

7

–

–

5.5

7

ns

28

DQM Data Out Disable Latency

2

–

2

–

2

–

2

–

CLK

Write Cycle

29

Write Recovery Time

CAS Latency = 3

CAS Latency = 2

5

10

–

–

5.5

10

–

–

6

10

–

–

7

10

–

–

ns

ns

30

DQM Write Mask Latency

0

–

0

–

0

–

0

–

CLK

#

Symbol Parameter

Limit Values

Unit

-5

-55

-6

-7

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Notes for AC Parameters:

1.

For proper power-up see the operation section of this data sheet.

2.

in Figure 1.

3.

4.

5.

These parameter account for the number of clock cycle and depend on the operating frequency of the clock, as

follows:

the number of clock cycle = specified value of timing period (counted in fractions as a whole number)

6.

Self Refresh Exit is a synchronous operation and begins on the 2nd positive clock edge after CKE returns high.

Self Refresh Exit is not complete until a time period equal to tRC is satisfied once the Self Refresh Exit command

is registered.

1.4V

1.4V

tCS

tCH

tAC

tAC

tLZ

tOH

tHZ

CLK

COMMAND

OUTPUT

50 pF

I/O

Z=50 Ohm

+1.4 V

50 Ohm

VIH

VIL

Figure 1.

tCK