DQ

VT = 1.4 V

50

Ω

DQ

3.3 V

Output Load 1

Output Load 2

589

Ω

434

Ω

Notes:

1. Include scope and jig capacitance.

2. Test conditions as specified with output loading as shown in Fig. 1

unless otherwise noted

Parameter

Conditions

Input high level

Input low level

Input rise time

tr = 1 V/ns

Input fall time

tf = 1 V/ns

Input reference level

1.4 V

Output reference level

1.4 V

Output load

Fig. 1& 2

GS78108AB

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

Rev: 1.04 5/2006

5/11

© 2003, GSI Technology

AC Test Conditions

AC Characteristics

Read Cycle

Parameter

Symbol

-8

-10

-12

Unit

Min

Max

Min

Max

Min

Max

Read cycle time

t

8

—

10

—

12

—

ns

Address access time

t

—

8

—

10

—

12

ns

Chip enable access time (CE)

t

—

8

—

10

—

12

ns

Output enable to output valid (OE)

t

—

3.5

—

4

—

5

ns

Output hold from address change

t

3

—

3

—

3

—

ns

Chip enable to output in low Z (CE)

3

—

3

—

3

—

ns

Output enable to output in low Z (OE)

0

—

0

—

0

—

ns

Chip disable to output in High Z (CE)

—

4

—

5

—

6

ns

Output disable to output in High Z (OE)

t

*

—

3.5

—

4

—

5

ns

RC

AA

AC

OE

OH

LZ

OLZ

HZ

OHZ