GS816218(B/D)/GS816236(B/D)/GS816272(C)

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

Rev: 2.17 11/2004

21/41

© 1999, GSI Technology

Notes:

1. These parameters are sampled and are not 100% tested.

2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold

times as specified above.

AC Electrical Characteristics

Parameter

Symbol

-250

-225

-200

-166

-150

-133

Unit

Min

Max

Min

Max

Min

Max

Min

Max Min Max Min Max

Pipeline

Clock Cycle Time

tKC

4.0

—

4.4

—

5.0

—

6.0

—

6.7

—

7.5

—

ns

Clock to Output Valid

tKQ

—

2.5

—

2.7

—

3.0

—

3.4

—

3.8

—

4.0

ns

Clock to Output Invalid

tKQX

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

ns

Clock to Output in Low-Z

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

ns

Setup time

tS

1.2

—

1.3

—

1.4

—

1.5

—

1.5

—

1.5

—

ns

Hold time

tH

0.2

—

0.3

—

0.4

—

0.5

—

0.5

—

0.5

—

ns

Flow

Through

Clock Cycle Time

tKC

5.5

—

6.0

—

6.5

—

7.0

—

7.5

—

8.5

—

ns

Clock to Output Valid

tKQ

—

5.5

—

6.0

—

6.5

—

7.0

—

7.5

—

8.5

ns

Clock to Output Invalid

tKQX

3.0

—

3.0

—

3.0

—

3.0

—

3.0

—

3.0

—

ns

Clock to Output in Low-Z

3.0

—

3.0

—

3.0

—

3.0

—

3.0

—

3.0

—

ns

Setup time

tS

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

1.5

—

ns

Hold time

tH

0.5

—

0.5

—

0.5

—

0.5

—

0.5

—

0.5

—

ns

Clock HIGH Time

tKH

1.3

—

1.3

—

1.3

—

1.3

—

1.5

—

1.7

—

ns

Clock LOW Time

tKL

1.5

—

1.5

—

1.5

—

1.5

—

1.7

—

2

—

ns

Clock to Output in

High-Z

1.5

2.5

1.5

2.7

1.5

3.0

1.5

3.0

1.5

3.0

1.5

3.0

ns

G to Output Valid

tOE

—

2.5

—

2.7

—

3.2

—

3.5

—

3.8

—

4.0

ns

G to output in Low-Z

0

—

0

—

0

—

0

—

0

—

0

—

ns

G to output in High-Z

—

2.5

—

2.7

—

3.0

—

3.0

—

3.0

—

3.0

ns

ZZ setup time

5

—

5

—

5

—

5

—

5

—

5

—

ns

ZZ hold time

1

—

1

—

1

—

1

—

1

—

1

—

ns

ZZ recovery

tZZR

20

—

20

—

20

—

20

—

20

—

20

—

ns