Cypress CY14B108K Truth Table For Sram Operations, For x8 Configuration, For x16 Configuration

PRELIMINARY

CY14B108K, CY14B108M

Truth Table For SRAM Operations

should remain HIGH for SRAM Operations.

HSB

For x8 Configuration

CE

WE

OE

Inputs and Outputs[2]

Mode

Power

H

X

X

High Z

Deselect/Power Down

Standby

L

H

L

Data Out (DQ0–DQ7);

Read

Active

L

H

H

High Z

Output Disabled

Active

L

L

X

Data in (DQ0–DQ7);

Write

Active

For x16 Configuration

CE

WE

OE

BHE

[3]

BLE

[3]

Inputs and Outputs[2]

Mode

Power

H

X

X

X

X

High-Z

Deselect/Power Down

Standby

L

X

X

H

H

High-Z

Output Disabled

Active

L

H

L

L

L

Data Out (DQ0–DQ15)

Read

Active

L

H

L

H

L

Data Out (DQ0–DQ7);

Read

Active

DQ8–DQ15in High-Z

L

H

L

L

H

Data Out (DQ8–DQ15);

Read

Active

DQ0–DQ7in High-Z

L

H

H

L

L

High-Z

Output Disabled

Active

L

H

H

H

L

High-Z

Output Disabled

Active

L

H

H

L

H

High-Z

Output Disabled

Active

L

L

X

L

L

Data In (DQ0–DQ15)

Write

Active

L

L

X

H

L

Data In (DQ0–DQ7);

Write

Active

DQ8–DQ15in High-Z

L

L

X

L

H

Data In (DQ8–DQ15);

Write

Active

DQ0–DQ7in High-Z

Document #: 001-47378 Rev. ** Page 24 of 29

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