EM621FU16 Series

Low Power, 128Kx16 SRAM

3

merging Memory & Logic Solutions Inc.

merging Memory & Logic Solutions Inc.

ABSOLUTE MAXIMUM RATINGS *

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

periods may affect reliability.

Parameter

Symbol

Ratings

Unit

Voltage on Any Pin Relative to Vss

-0.2 to Vcc+0.3 (Max. 4.0V)

V

Voltage on Vcc supply relative to Vss

-0.2 to 4.0V

V

Power Dissipation

P

D

1.0

W

Operating Temperature

T

A

-40 to 85

FUNCTIONAL DESCRIPTION

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

CS

OE

WE

LB

UB

I/O

1-8

I/O

9-16

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