EM639165TS-75 查看數據表（PDF） - Etron Technology

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EM639165TS-75

8Mega x 16bits SDRAM

Etron Technology 

EM639165

FUNCTION TRUTH TABLE (continued)

Current State /CS /RAS /CAS /WE Address

Command Action

WRITE

H X X XX

RECOVERING

L

H H HX

DESEL NOP

NOP NOP

L H H L BA

TBST ILLEGAL*2

L

H L X BA, CA, A10 READ / ILLEGAL*2

WRITE

L L H H BA, RA

ACT ILLEGAL*2

L L H L BA, A10

PRE / ILLEGAL*2

PREA

L L L HX

REFA ILLEGAL

L

L

L L Op-Code,

Mode-Add

MRS ILLEGAL

REFRESHING H X X X X

DESEL NOP (Idle after tRC)

L H H HX

NOP NOP (Idle after tRC)

L H H L BA

TBST ILLEGAL

L

H

L X BA, CA, A10 READ / ILLEGAL

WRITE

L L H H BA, RA

ACT ILLEGAL

L L H L BA, A10

PRE /

PREA

ILLEGAL

L L L HX

REFA ILLEGAL

L

L

L L Op-Code,

Mode-Add

MRS ILLEGAL

Preliminary

10

Rev 1.0 Feb. 2001

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