MH8S72BALD-7 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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MH8S72BALD-7

603979776-BIT (8388608 - WORD BY 72-BIT)SynchronousDRAM

MITSUBISHI ELECTRIC  

Preliminary Spec.

Some contents are subject to change without notice.

MITSUBISHI LSIs

MH8S72BALD -7,-8,-10

603979776-BIT (8388608 - WORD BY 72-BIT)SynchronousDRAM

FUNCTION TRUTH TABLE FOR CKE

CKE CKE

Current State n-1 n

/S /RAS /CAS /WE Add

Action

SELF -

HXX

X

X

X

X INVALID

REFRESH*1 L

HH

X

X

X

X Exit Self-Refresh(Idle after tRC)

LHL

H

H

H

X Exit Self-Refresh(Idle after tRC)

LHL

HHL

X ILLEGAL

LHL

HL

X

X ILLEGAL

LHL

L

X

X

X ILLEGAL

L

L

X

X

X

X

X NOP(Maintain Self-Refresh)

POWER

DOWN

HXX

X

X

X

X INVALID

L

HX

X

X

X

X Exit Power Down to Idle

L

L

X

X

X

X

X NOP(Maintain Self-Refresh)

ALL BANKS

HHX

X

X

X

X Refer to Function Truth Table

IDLE*2

HLL

L

L

H

X Enter Self-Refresh

HL

H

X

X

X

X Enter Power Down

HLL

HLL

HLL

HLL

H

H

H

X Enter Power Down

HHL

X ILLEGAL

HL

X

X ILLEGAL

L

X

X

X ILLEGAL

L

XX

X

X

X

X Refer to Current State = Power Down

ANY STATE H H X

X

X

X

X Refer to Function Truth Table

other than

HL

X

X

X

X

X Begin CK0 Suspend at Next Cycle*3

listed above

L

HX

X

X

X

X Exit CK0 Suspend at Next Cycle*3

L

L

X

X

X

X

X Maintain CK0 Suspend

ABBREVIATIONS:

H = High Level, L = Low Level, X = Don't Care

NOTES:

1. CKE Low to High transition will re-enable CK and other inputs asynchronously.

A minimum setup time must be satisfied before any command other than EXIT.

2. Power-Down and Self-Refresh can be entered only from the All banks idle State.

3. Must be legal command.

MIT-DS-0225-0.4

MITSUBISHI

ELECTRIC

( 11 / 55 )

29.Oct.1998

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