MH16S64AMA-12 データシートの表示（PDF） - MITSUBISHI ELECTRIC

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MH16S64AMA-12

1073741824-BIT (16777216 - WORD BY 64-BIT) SynchronousDRAM

MITSUBISHI ELECTRIC  

Preliminary Spec.

Some contents are subject to change without notice.

MITSUBISHI LSIs

MH16S64AMA -8,-10,-12

1073741824-BIT (16777216 - WORD BY 64-BIT)SynchronousDRAM

CLK SUSPEND

CKE controls the internal CLK at the following cycle. Figure below shows how CKE

works. By negating CKE, the next internal CLK is suspended. The purpose of CLK

suspend is power down, output suspend or input suspend. CKE is a synchronous

input except during the self-refresh mode. CLK suspend can be performed either

when the banks are active or idle, but a command at the following cycle is ignored.

CK

(ext.CLK)

CKE

int.CLK

CK

CKE

Command

PRE

CKE

Command

ACT

Power Down by CKE

Standby Power Down

NOP NOP NOP NOP NOP NOP NOP

Active Power Down

NOP NOP NOP NOP NOP NOP NOP

CK

CKE

Command

DQ

Write

D0 D1

DQ Suspend by CKE

READ

D2 D3

Q0 Q1

Q2

Q3

MIT-DS-0127-0.0

MITSUBISHI

ELECTRIC

( 27 / 52 )

4. Mar.1997

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