HY57V561620C(L)T(P)

Rev. 0.5 / June 2004

8

AC CHARACTERISTICS II

Note :

1. A new command can be given tRRC after self refresh exit

Parameter

Symbol

-6

-7

-K

-H

-8

-P

-S

Unit

Note

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

RAS Cycle Time

Operation

tRC

60

-

60

-

60

-

65

-

68

-

70

-

70

-

ns

Auto Refresh

tRRC

60

-

60

-

60

-

65

-

68

-

70

-

70

-

ns

RAS to CAS Delay

tRCD

18

-

18

-

15

-

20

-

20

-

20

-

20

-

ns

RAS Active Time

tRAS

42

100K

42

100K

45

100K

45

100K

48

100K

50

100K

50

100K

ns

RAS Precharge Time

tRP

18

-

18

-

15

-

20

-

20

-

20

-

20

-

ns

RAS to RAS Bank Active Delay

tRRD

12

-

14

-

15

-

15

-

16

-

20

-

20

-

ns

CAS to CAS Delay

tCCD

1-

1-1

-

1

-

1-

1-

1-

CLK

Write Command to Data-In Delay

tWTL

0

-

0

-

0

-

0

-

0

-

0

-

0

-

CLK

Write Recovery Time

tWR

2

-

2

-2

-2

-2-

2

-

2

-

CLK

Data-In to Active Command

tDAL

5-

5-5

-

5

-

5-

5-

5-

CLK

DQM to Data-Out Hi-Z

tDQZ

2

-

2

-

2

-

2

-

2

-

2

-

2

-

CLK

DQM to Data-In Mask

tDQM

0-

0-0

-

0

-

0-

0-

0-

CLK

MRS to New Command

tMRD

2-

2-2

-

2

-

2-

2-

2-

CLK

Precharge to Data

Output Hi-Z

CAS Latency = 3

tPROZ3

3

-

3

-

3

-

3

-

3

-

3

-

3

-

CLK

CAS Latency = 2

tPROZ2

2

-

2

-

2

-

2

-

2

-

2

-

2

-

CLK

Power Down Exit Time

tPDE

1-

1-1

-

1

-

1-

1-

1-

CLK

Self Refresh Exit Time

tSRE

1-

1-1

-

1

-

1-

1-

1-

CLK

1

Refresh Time

tREF

-

64

-

64

-

64

-

64

-

64

-

64

-

64

ms