GS8170DW36/72AC-350/333/300/250

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

Rev: 1.04 4/2005

19/32

© 2003, GSI Technology

AC Electrical Characteristics

Parameter

Symbol

-350

-333

-300

-250

Unit

Notes

Min

Max

Min

Max

Min

Max

Min

Max

Clock Cycle Time

tKHKH

2.86

—

3.0

—

3.3

—

4.0

—

ns

—

Clock High Time

tKHKL

1.0

—

1.2

—

1.3

—

1.6

—

ns

—

Clock Low Time

tKLKH

1.0

—

1.2

—

1.3

—

1.6

—

ns

—

Clock High to Echo Clock Low-Z

tKHCX1

0.5

—

0.5

—

0.5

—

0.5

—

ns

2

Clock High to Echo Clock High

tKHCH

—

1.7

—

1.8

1.8

—

2.1

ns

—

Clock Low to Echo Clock Low

tKLCL

—

1.7

—

1.8

1.8

—

2.1

ns

Clock High to Echo Clock High-Z

tKHCZ

—

1.7

—

1.8

1.8

—

2.1

ns

1, 2

Clock High to Output Low-Z

tKHQX1

0.5

—

0.5

—

0.5

—

0.5

—

ns

1

Clock High to Output Valid

tKHQV

—

1.7

—

1.8

1.8

—

2.1

ns

—

Clock High to Output Invalid

tKHQX

0.5

—

0.5

—

0.5

—

0.5

—

ns

—

Clock High to Output High-Z

tKHQZ

—

1.7

—

1.8

1.8

—

2.1

ns

1

Echo Clock High to Output Valid

tCHQV

—

0.35

—

0.35

—

0.38

—

0.45

ns

2

Echo Clock High to Output Invalid

tCHQX

–0.35

—

–0.35

—

–0.38

—

–0.45

—

ns

2

Address Valid to Clock High

tAVKH

0.4

—

0.6

—

0.7

—

0.8

—

ns

—

Clock High to Address Don’t Care

tKHAX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

Enable Valid to Clock High

tEVKH

0.4

—

0.6

—

0.7

—

0.8

—

ns

—

Clock High to Enable Don’t Care

tKHEX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

Write Valid to Clock High

tWVKH

0.4

—

0.6

—

0.7

—

0.8

—

ns

—

Clock High to Write Don’t Care

tKHWX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

Byte Write Valid to Clock High

tBVKH

0.4

—

0.6

—

0.7

—

0.8

—

ns

—

Clock High to Byte Write Don’t Care

tKHBX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

Data In Valid to Clock High

tDVKH

0.4

—

0.5

—

0.5

—

0.5

—

ns

—

Clock High to Data In Don’t Care

tKHDX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

ADV Valid to Clock High

tadvVKH

0.4

—

0.6

—

0.7

—

0.8

—

ns

—

Clock High to ADV Don’t Care

tKHadvX

0.4

—

0.4

—

0.4

—

0.5

—

ns

—

Notes:

1. Measured at 100 mV from steady state. Not 100% tested.

2. Guaranteed by design. Not 100% tested.

3. For any specific temperature and voltage tKHCZ < tKHCX1.