Document #: 001-50045 Rev. *D

Page 9 of 14

Figure 7. Write Cycle No. 2 (CE Controlled) [23, 24]

Figure 8. Write Cycle No. 3 (WE Controlled, OE LOW) [24]

Truth Table

CE

WE

OE

I/O

Mode

Power

H[26]

X

X

High Z

Deselect/power-down

L

H

L

Data out

Read

L

H

H

High Z

Output disabled

L

L

X

Data in

Write

DATA VALID

ADDRESS

CE

DATA I/O

WE

DATA VALID

ADDRESS

CE

WE

DATA I/O

NOTE 25

Notes

24. If CE goes HIGH simultaneously with WE HIGH, the output remains in high impedance state.

25. During this period, the I/Os are in output state. Do not apply input signals.