MH32S72BBFA-7 Datasheet, PDF (8/56 Pages) Mitsubishi Electric Semiconductor – 2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM

MITSUBISHI LSIs
MH32S72BBFA -7,-8
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE(continued)
Current State
WRIT E
READ with
AUTO
PRECHARGE
WRITE with
AUTO
PRECHARGE
/S /RAS /CAS /WE Address
Command
Action
H
X
X
XX
L
H
H
HX
DESEL
NOP
NOP(Continue Burst to END)
NOP(Continue Burst to END)
L
H
H
L BA
TBST
Terminate Burst
Terminate Burst,Latch CA,
L
H
L
H BA,CA,A10 READ/READA Begin Read,Determine Auto-
Precharge*3
Terminate Burst,Latch CA,
WRITE/
L
H
L
L BA,CA,A10
Begin Write,Determine Auto-
WRITEA _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
Op-Code,
L
L
L
L
Mode-Add
H
X
X
XX
REFA
MRS
DESEL
ILLEGAL
ILLEGAL
NOP(Continue Burst to END)
L
H
H
HX
L
H
H
L BA
NOP
TBST
NOP(Continue Burst to END)
ILLEGAL
L
H
L
H BA,CA,A10 READ/READA ILLEGAL
WRITE/
L
H
L
L BA,CA,A10
WRITEA ^ILLEGAL
L
L
H
H BA,RA
ACT
Bank Active/ILLEGAL*2
L
L
H
L BA,A10
PRE/PREA ILLEGAL*2
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
ILLEGAL
L
H
L
H BA,CA,A10 READ/READA ILLEGAL
L
H
L
L BA,CA,A10
WRITE/
WRITEA
ILLEGAL
L
L
H
H BA,RA
ACT
Bank Active/ILLEGAL*2
L
L
H
L BA,A10
PRE/PREA ILLEGAL*2
L
L
L
HX
REFA
ILLEGAL
Op-Code,
L
L
L
L _Mode-Add
MRS
ILLEGAL
MIT-DS-331-0.0
MITSUBISHI
ELECTRIC
16/Jun. /1999 8