EM621FU16BU Series

Low Power, 128Kx16 SRAM

3

ABSOLUTE MAXIMUM RATINGS *

ation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods

may affect reliability.

Parameter

Symbol

Minimum

Unit

Voltage on Any Pin Relative to Vss

-0.2 to 4.0V

V

Voltage on Vcc supply relative to Vss

-0.2 to 4.0V

V

Power Dissipation

1.0

W

Operating Temperature

-40 to 85

FUNCTIONAL DESCRIPTION

Note: X means don’t care. (Must be low or high state)

CS

OE

WE

LB

UB

Mode

Power

H

X

X

X

X

High-Z

High-Z

Deselected

Stand by

X

X

X

H

H

High-Z

High-Z

Deselected

Stand by

L

H

H

L

X

High-Z

High-Z

Output Disabled

Active

L

H

H

X

L

High-Z

High-Z

Output Disabled

Active

L

L

H

L

H

Data Out

High-Z

Lower Byte Read

Active

L

L

H

H

L

High-Z

Data Out

Upper Byte Read

Active

L

L

H

L

L

Data Out

Data Out

Word Read

Active

L

X

L

L

H

Data In

High-Z

Lower Byte Write

Active

L

X

L

H

L

High-Z

Data In

Upper Byte Write

Active

L

X

L

L

L

Data In

Data In

Word Write

Active