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Integrated Silicon Solution, Inc. — www.issi.com

Rev. C

04/02/09

IS42S83200C

IS42S16160C

OPERATING AC PARAMETER

(AC operating conditions unless otherwise noted)

Version

Unit

Note

Parameter

Symbol

-6

-7

-75

Row active to row active delay

12

14

15

ns

1

RAS to CAS delay

18

20

20

ns

1

Row precharge time

18

20

20

ns

1

42

45

45

ns

1

Row active time

100K

100K

100K

ns

Row cycle time

60

63

65

ns

1

R e fre sh in te rva l tim e

64

64

64

ms

Auto refresh cycle time

60

70

75

ns

NOTES:

1. The minimum number of clock cycles is determined by dividing the minimum time required with clock cycle time and then rounding off to the next

higher integer.

Last data in to row precharge

2

2

2

CLK

Last data in to active delay

5

5

5

CLK

Last data in to new col. address delay

1

1

1

CLK

Last data in to burst stop

1

1

1

CLK

Mode register set cycle time

2

2

2

CLK