Advance Information

The specifications of this device are subject to change without notice. For latest documentation see http://www.emlsi.com.

17

RMS132AW

Table7: CKE Truth Table

4

Refer to the Idle State

section of the Current State

Truth Table

X

X

X

H

H

H

All

Banks

Idle

4

X

X

H

L

H

H

4

X

H

L

L

H

H

Auto Refresh

X

X

H

L

L

L

H

H

5

Mode Register Set

OP CODE

L

L

L

L

H

H

4

Refer to the Idle State

section of the Current State

Truth Table

X

X

X

H

L

H

4

X

X

H

L

L

H

4

X

H

L

L

L

H

5

Entry Self Refresh

X

X

H

L

L

L

L

H

Mode Register Set

OP CODE

L

L

L

L

L

H

5

Power Down

X

X

X

X

X

X

X

L

Refer to Operations of the

Current State Truth Table

X

X

X

X

X

X

H

H

Any

State

other

than

listed

above

Begin Clock Suspend next

cycle

X

X

X

X

X

X

L

H

Exit Clock Suspend next

cycle

X

X

X

X

X

X

H

L

Maintain Clock Suspend

X

X

X

X

X

X

L

L

X

X

L

X

X

X

X

X

L

X

X

X

H

H

H

L

Maintain Deep Power Down

Mode

Deep Power Down Mode Set

INVALID

ILLEGAL

Exit Self Refresh with No

Operation

Exit Self Refresh with Device

Deselect

INVALID

X

X

X

X

X

X

X

X

A0-A10

BA

/WE

/CAS

/RAS

/CS

Current

Cycle

Prev

Cycle

X

X

X

X

X

L

L

6

X

X

X

X

X

H

L

2

X

X

X

X

X

X

H

Deep

Power

Down

Maintain Power Down Mode

X

X

X

X

X

X

L

L

3

ILLEGAL

X

X

X

X

L

L

H

L

3

Power Down Mode Exit, All

Banks Idle

X

X

X

X

X

H

H

L

2

INVALID

X

X

X

X

X

X

X

H

Power

Down

Maintain Self Refresh

X

X

X

X

X

X

L

L

3

ILLEGAL

X

X

X

X

L

L

H

L

3

ILLEGAL

X

X

L

H

L

H

L

3

X

L

H

H

L

H

L

3

X

H

H

H

L

H

L

3

X

X

X

X

H

H

L

2

X

X

X

X

X

X

H

Self

Refresh

Note

Action

Command

CKE

Current

State