MH16S64AMA-12 데이터 시트보기 (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

SELF REFRESH

Self-refresh mode is entered by issuing a REFS command (/CS=/RAS=/CAS=L,

/WE=H, CKE=L). Once the self-refresh is initiated, it is maintained as log as CKE is

kept low.During the self-refresh mode, CKE is asynchronous and the only enabled

input (but asynchronous), all other inputs including CK0 are disabled and ignored, and

power consumption due to synchronous inputs is saved. To exit the self-refresh,

supplying stable CK0 inputs, asserting DESEL or NOP command and then asserting

CKE(REFSX). After tRC from REFSX both banks are in the idle state and a new

command can be issued after tRC, but DESEL or NOP commands must be asserted

till then.

CK

/S

/RAS

/CAS

/WE

CKE

A0-11

BA0,1

Self-Refresh

Stable CK

NOP

new command

X

0

Self Refresh Entry

Self Refresh Exit

minimum tRC

for recovery

MIT-DS-0127-0.0

MITSUBISHI

ELECTRIC

( 26 / 52 )

4. Mar.1997

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