5

s

s

s

*1 : V

= Valid, L = Logic Low, H = Logic High, X = either “L” or “H”, High-Z = High Impedance

*2 : Power Down mode can be entered from Standby state and all DQ pins are in High-Z state.

*3 : Output Disable mode should not be kept longer than 1

µs.

*4 : Byte control at Read mode is not supported.

Mode

CE1CE2

WE

OE

LB

UB

Data

Retention

X

L

XXXX

High-Z

High-Z

No

Standby (Deselect)

H

H

XXXX

High-Z

High-Z

Yes

L

H

H

X

X

High-Z

High-Z

LX

X

Output

Valid

Output

Valid

Write

LH

LL

Input

Valid

Input

Valid

Write (Lower Byte)

L

H

Input

Valid

Invalid

Write (Upper Byte)

H

L

Invalid

Input

Valid