MH8S72BALD-8 Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
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MH8S72BALD-8 Datasheet PDF : 55 Pages
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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
Current State
IDLE
ROW ACTIVE
READ
/S /RAS /CAS /WE Address
Command
Action
H
X
X
XX
DESEL NOP
L
H H HX
NOP
NOP
L
H
H
L BA
TBST
ILLEGAL*2
L
HL
X BA,CA,A10 READ/WRITE ILLEGAL*2
L
L
H
H BA,RA
ACT
Bank Active,Latch RA
L
L
H
L BA,A10
PRE/PREA NOP*4
L
L
L
HX
REFA
Auto-Refresh*5
Op-Code,
L
L
L
L
Mode-Add
MRS
Mode Register Set*5
H
X
X
XX
DESEL NOP
L
H H HX
NOP
NOP
L
H H L BA
TBST
NOP
Begin Read,Latch CA,
L
HL
H BA,CA,A10 READ/READA
Determine Auto-Precharge
WRITE/ Begin Write,Latch CA,
L
HL
L BA,CA,A10
WRITEA Determine Auto-Precharge
L
L
H H BA,RA
ACT
Bank Active/ILLEGAL*2
L
L
H L BA,A10
PRE/PREA Precharge/Precharge All
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
H
X
X
XX
DESEL NOP(Continue Burst to END)
L
H H HX
NOP
NOP(Continue Burst to END)
L
H
H
L BA
TBST
Terminate Burst
Terminate Burst,Latch CA,
L
HL
H BA,CA,A10 READ/READA Begin New Read,Determine
Auto-Precharge*3
Terminate Burst,Latch CA,
L
HL
L BA,CA,A10 WRITE/WRITEA Begin Write,Determine Auto-
Precharge*3
L
L
H H BA,RA
ACT
Bank Active/ILLEGAL*2
L
L
H L BA,A10
PRE/PREA Terminate Burst,Precharge
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS
ILLEGAL
MIT-DS-0225-0.4
MITSUBISHI
ELECTRIC
( 7 / 55 )
29.Oct.1998
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